CN113671151B - Indoor model test system for tillite ice-gathering evolution process - Google Patents
Indoor model test system for tillite ice-gathering evolution process Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 176
- 239000002689 soil Substances 0.000 claims abstract description 66
- 238000001816 cooling Methods 0.000 claims description 72
- 230000005484 gravity Effects 0.000 claims description 45
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Abstract
The invention discloses an indoor model test system for a tillite ice-gathering evolution process, which comprises a left sample cylinder, a right sample cylinder, a data acquisition device, a refrigerating device, a water supply and drainage device and a pressurizing device, and can realize a real-time monitoring process for the tillite ice-gathering evolution process. The side wall of the left sample tube and the side wall of the right sample tube are respectively provided with a plurality of jacks, and a plurality of pressure boxes are arranged in soil. The data acquisition device comprises a plurality of hygrothermographs and a data acquisition instrument, the left sample tube and the right sample tube are identical in structure, the left sample tube comprises an upper tube and a lower tube, and hoops are arranged on the outer walls of the upper tube and the lower tube. The refrigerating device comprises an upper cold bath tray and a lower cold bath tray. The method has the advantages of preventing the tillite in-situ frost heaving force from damaging the sensor preformed hole, generating linkage effect, along with high test efficiency and data accuracy, simultaneously carrying out multiple groups of tests, improving test precision and greatly shortening test period.
Description
Technical Field
The invention relates to the technical field of soil body detection equipment, in particular to an indoor model test system for a tillite ice-gathering evolution process.
Background
The permafrost area of China is widely distributed, the frozen soil area of China accounts for 22.3% of the national area, and the seasonal frozen soil area accounts for 53.5%. The river and Tibetan railway construction passes through the alpine mountain area, the mountain and Sichuan plateau transition area which is extremely complicated in geology along the way is obvious in seasonal freeze thawing phenomenon, a large amount of distributed glacier moraine deposits are contained along the way, and the occurrence of disaster phenomena such as frost heaving, unsteady slumping, scouring, debris flow and the like of the interface type side slope of the moraine is more frequent under extreme environmental factors such as alpine, high altitude and the like. The tillite soil is used as a special geologic body between a homogeneous soil body and a disintegrated rock body, so that the tillite soil is obviously different from the traditional frozen soil, and is mainly characterized in that: (1) The source of the material is the moraine deposit and the detritus deposit formed by the action of the fourth stage glacier, and the material has poor inter-particle bonding, good pore communication and strong permeability; (2) The particle size component is uneven, and the typical 'two-particle phase' structure characteristic is presented, and the grading is discontinuous.
Under the repeated freezing and thawing actions in alpine regions, the surface layer tillite body continuously exchanges water heat to the inside, so that an ice-rich zone is generated in the tillite layer, and under the low friction and water stagnation lubrication effects of the ice-rich zone, an interface type landslide along the ice-rich zone is induced. Therefore, the research on the water-heat transfer rule of the tillite in alpine mountain areas is particularly important for researching the interface landslide catastrophe mechanism of the tillite. At present, a model barrel with a small size is adopted for a soil body freeze thawing test model, and the frost heaving force is large due to the high permeability of the tillite, and the conventional frost soil test device is easy to generate frost heaving linkage damage near the hole position of the sample barrel, so that the real-time monitoring process of the ice-gathering evolution of the tillite side slope in a real environment is difficult to reflect. Even if a large soil body freeze thawing cycle test exists, the problems of difficult sample loading and unloading and the like exist in the test process, and the large disturbance to the frozen and thawed tillite is easy to generate in a drilling coring mode, so that the reliability of the subsequent test results is affected. And the unidirectional freeze thawing device can only carry out one group of unidirectional freeze thawing cycle tests, can not carry out the unidirectional freeze thawing cycle tests together with a plurality of groups of tests, and the test efficiency is required to be improved. Meanwhile, the test data is greatly changed and floats due to the influence of the ambient temperature, the ground temperature and the like, and the measurement result is deviated.
To sum up, the problems of the prior art are: at present, the related freeze thawing test device is difficult to solve the chain damage of frost heaving force generated by high permeability soil to the vicinity of the holes of the wall of the sample tube; the sample is difficult to assemble and disassemble in the test process, and large disturbance is easily caused when the tillite soil sample is subjected to drilling coring sampling, so that the test reliability is affected; the soil freezing and thawing test device cannot be used together in a plurality of groups of tests, and the environmental temperature and the ground temperature can influence the hydrothermal change in the frigid soil, so that the data change is greatly floated.
Disclosure of Invention
Aiming at the technical problems, the invention provides an indoor model test system for a tillite ice-gathering evolution process, which is used for carrying out a plurality of groups of freeze thawing tests on a left sample cylinder and a right sample cylinder through a pressurizing device, a refrigerating device and a data acquisition device.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides a tillite soil gathers ice evolution process indoor model test system, includes left sample section of thick bamboo, right sample section of thick bamboo, data acquisition device, refrigerating plant, water supply and drainage device and pressure device, and left sample section of thick bamboo, right sample section of thick bamboo all set up in pressure device's bottom, have the distance between left sample section of thick bamboo and the right sample section of thick bamboo.
The data acquisition device is respectively connected with the left sample cylinder, the right sample cylinder and the water supply and drainage device. The refrigerating device is respectively connected with the left sample tube and the right sample tube, and the left sample tube and the right sample tube are connected in parallel into the refrigerating device.
The upper part of the pressurizing device is respectively connected with the upper part of the left sample tube and the upper part of the right sample tube, and the bottom of the pressurizing device is respectively connected with the bottom of the left sample tube and the bottom of the right sample tube.
One end of the water supply and drainage device is respectively connected with the upper part of the left sample tube and the upper part of the right sample tube, the other end of the water supply and drainage device penetrates through the bottom of the pressurizing device, and the other end of the water supply and drainage device is respectively connected with the bottom of the left sample tube and the bottom of the right sample tube. The water supply and drainage device is used for supplementing water and draining water to the left sample cylinder and the right sample cylinder respectively. The refrigerating device is used for providing cold energy for the left sample cylinder and the right sample cylinder respectively.
The side wall of the left sample tube and the side wall of the right sample tube are respectively provided with a plurality of jacks which are spirally arranged on the side wall of the left sample tube and the side wall of the right sample tube. The left sample tube and the right sample tube are respectively provided with a tillite soil body, a plurality of pressure boxes are arranged in the soil body, the number of the pressure boxes is equal to that of the jacks, and the pressure boxes correspond to the positions of the jacks.
The data acquisition device comprises a plurality of hygrothermographs and a data acquisition instrument, wherein the data acquisition instrument is respectively connected with the hygrothermographs, each hygrothermograph is spliced with each jack, each hygrothermograph is spliced into the body of the tillite, and the hygrothermograph is used for detecting the temperature and the humidity around the body of the tillite where the pressure box is located.
The left sample tube has the same structure as the right sample tube, the left sample tube comprises an upper tube and a lower tube, a flange is arranged between the upper tube and the lower tube, the top surface of the flange is connected with the bottom surface of the upper tube, and the bottom surface of the flange is connected with the top surface of the lower tube. The upper cylinder is identical with the lower cylinder in structure, the upper cylinder comprises 2 semicircular cylinders, the joints of the 2 semicircular cylinders are bonded, hoops are arranged on the outer walls of the upper cylinder and the lower cylinder, the inner walls of the hoops are respectively connected with the outer walls of the upper cylinder and the outer walls of the lower cylinder, and the hoops are used for fixing the left sample cylinder and the right sample cylinder.
The refrigerating device comprises an upper cooling bath disc and a lower cooling bath disc, wherein the upper cooling bath disc is arranged on the upper part of the inner wall of the left sample cylinder and the upper part of the inner wall of the right sample cylinder, and the lower cooling bath disc is arranged on the lower part of the inner wall of the left sample cylinder and the lower part of the inner wall of the right sample cylinder. The upper cold bath disc is respectively provided with an upper overflow port, an upper outlet, an upper exploratory hole and an upper inlet, and is used for respectively supplementing water and draining water to the upper part of the left sample tube, and the upper cold bath disc is used for respectively supplementing water and draining water to the upper part of the right sample tube. The lower cooling bath tray is respectively provided with a lower water supplementing port, a lower outlet, a lower inlet, a lower exploratory hole and a lower overflow port, and is used for supplementing water and draining water to the lower part of the left sample tube respectively, and is used for supplementing water and draining water to the lower part of the right sample tube respectively.
Compared with the prior art, the invention has the following advantages:
1. through arranging hygrothermograph and pressure cell to the inside layering of large-scale tillite soil sample, a plurality of jacks adopt the spiral to set up on the lateral wall of left sample section of thick bamboo, the lateral wall of right sample section of thick bamboo. By testing the temperature and humidity and the frost heaving force of the tillite at different moments and different positions, the frost heaving effect of the tillite at different moments and different positions in the freeze thawing process can be reflected. The real-time monitoring of the hydrothermal migration and frost heaving force of the tillite soil sample in the unidirectional freezing and thawing process is realized, and the automatic detection and feedback effects of test data are achieved. Meanwhile, the spiral layout mode can prevent the in-situ frost heaving force from damaging the sensor preformed hole on the sample tube, and the generated linkage effect is high in test efficiency and data accuracy.
2. The sealing effect of the left sample cylinder and the right sample cylinder after assembly is guaranteed by means of the flange plate, the hoop ring, the rubber sealing strip and the like, and meanwhile, the left sample cylinder and the right sample cylinder are convenient to detach by adopting the four-semicircular arc structures, so that disturbance can be reduced, and accuracy of test data is improved.
3. The upper cold bath tray and the lower cold bath tray are connected with the water supply and drainage device to realize water supply and drainage. Through the connection of the upper cooling bath tray, the lower cooling bath tray and the refrigerating plant, the temperatures of the cooling bath liquid, the top and the bottom of the soil sample of the tillus are detected at any time, the rapid cooling of the soil body of the tillus can be realized, the data acquired by the hygrothermograph can be mutually verified, and the credibility of the data is improved. The purpose of simultaneously carrying out multiple groups of tests is achieved by arranging the left sample cylinder and the right sample cylinder. Therefore, the data of the whole test device are automatically detected, and a plurality of groups of tests can be simultaneously carried out, so that the test precision is improved, and the test period is greatly shortened.
Further preferred are: grooves are formed in the upper inner wall of the left sample tube, the lower inner wall of the left sample tube, the upper inner wall of the right sample tube and the lower inner wall of the right sample tube, and are used for placing permeable stones.
By adopting the technical scheme, the permeable stone is placed and fixed better, and the permeable stone is prevented from being displaced in the test process.
Further preferred are: the left sample tube and the right sample tube are of a four-semicircle arc structure.
By adopting the technical scheme, the installation and the disassembly work of the tillite soil sample can be rapidly realized through the quarter circular arc splicing mode of the 2 glass barrels, the disturbance to the soil sample is greatly reduced, and the subsequent further analysis to the tillite soil sample is convenient.
Further preferred are: the pressurizing device comprises a frame, a press machine and a pneumatic pump, wherein the pneumatic pump is fixed on the bottom surface of the frame, the working end of the press machine penetrates through the top of the frame, the working end of the press machine is connected with the upper cold bath disc, the outlet of the pneumatic pump is connected with the press machine, and the pneumatic pump is used for providing power for the press machine.
The working end of the press is connected with a working rod, the working rod is fixedly connected with the working end of the press, a pushing disc is sleeved on the working rod, and the pushing disc is fixedly connected with the working rod. The pushing disc is provided with a displacement sensor.
The frame is provided with a supporting rod, the upper end of the supporting rod penetrates through the top of the frame, the upper end of the supporting rod is connected with the top of the frame, the lower end of the supporting rod is connected with a bottom plate, and the upper surface of the bottom plate is connected with a lower cold bath plate.
The bottom of frame is provided with 2 bases, and the pneumatic pump is located the position department between 2 bases.
By adopting the technical scheme, the pneumatic pump is started, pressure is provided for the press through the pneumatic pump, the pushing disc is driven to move after the press works, the upper cooling bath disc is pushed into the left sample tube and the right sample tube by the movement of the pushing disc, joint plugging measures are carried out on the left sample tube and the right sample tube, and the whole test model is in a sealing state.
Further optimizing to: a plurality of slide locks are respectively arranged between the bottom plate and the base, the top surface of each slide lock is fixedly connected with the bottom surface of the bottom plate, and the bottom surface of each slide lock is in sliding connection with the base.
By adopting the technical scheme, the left sample cylinder and the right sample cylinder are moved through the slide lock and the bottom plate, so that the mounting and dismounting work of the tillite soil sample can be realized quickly, the disturbance of the tillite soil sample is greatly reduced, and the subsequent further analysis of the tillite soil sample is facilitated.
Further optimizing to: the refrigerating device comprises a first test box and a second test box, wherein an outlet of the first test box is connected with an upper inlet of an upper cold bath disc of the right sample tube, an upper outlet of the upper cold bath disc of the right sample tube is connected with an upper inlet of an upper cold bath disc of the left sample tube, and an upper outlet of the upper cold bath disc of the left sample tube is connected with an inlet of the first test box.
The outlet of the second test box is connected with the lower inlet of the lower cooling bath disc in the left test tube, the lower inlet in the left test tube is connected with the lower inlet of the lower cooling bath disc of the right test tube, and the lower outlet of the lower cooling bath disc in the right test tube is connected with the inlet of the second test box. The first test box is used for providing cold energy to the upper part of the left test tube and the upper part of the right test tube, and the second test box is used for providing cold energy to the lower part of the left test tube and the lower part of the right test tube.
By adopting the technical scheme, the cooling capacity is respectively provided for the upper part of the left sample tube and the upper part of the right sample tube through the first test box, the cooling capacity is respectively provided for the lower part of the left sample tube and the lower part of the right sample tube through the second test box, and the purposes that the cooling device cools through the upper cooling bath disc and the lower cooling bath disc and performs multiple groups of tests are realized.
Further optimizing to: the water supply and drainage device comprises an upper drainage assembly and a lower drainage assembly, and the data output end of the upper drainage assembly and the data output end of the lower drainage assembly are connected with the data acquisition instrument.
By adopting the technical scheme, the real-time monitoring of the water quantity during soil body water supplementing and draining is realized through the upper drainage assembly and the lower drainage assembly, and the reliability of experimental data is improved.
Further optimizing to: the upper water discharge assembly comprises a first water discharge bottle and a first water supply bottle, the outlet of the first water supply bottle is connected with a first water supply valve, the outlet of the first water discharge bottle is connected with a first drain valve, and the upper overflow port is respectively connected with the first water supply valve and the first drain valve. The bottom of the first row of water bottles is provided with a first gravity sensor, and the first gravity sensor is adhered to the bottom of the first row of water bottles. The bottom of the first water feeding bottle is provided with a second gravity sensor, and the second gravity sensor is adhered to the bottom of the first water feeding bottle. The first gravity sensor and the second gravity sensor are both in data connection with the data acquisition instrument.
By adopting the technical scheme, the water replenishing and draining functions are realized on the upper part of the left sample tube and the upper part of the right sample tube through the upper draining assembly, and the water replenishing and draining water quantity is measured in real time through the first gravity sensor and the second gravity sensor.
Further optimizing to: the lower water draining component comprises a second water draining bottle and a second water feeding bottle, an outlet of the second water feeding bottle is connected with a second water feeding valve, an outlet of the second water feeding valve is connected with a lower water supplementing port, a fourth gravity sensor is arranged at the bottom of the second water feeding bottle, and the fourth gravity sensor is adhered to the bottom of the second water feeding bottle. The outlet of the second water draining bottle is connected with a second water draining valve, the outlet of the second water draining valve is connected with a lower overflow port, a third gravity sensor is arranged at the bottom of the second water draining bottle, and the third gravity sensor is adhered to the bottom of the second water draining bottle. And the third gravity sensor and the fourth gravity sensor are both in data connection with the data acquisition instrument.
By adopting the technical scheme, the lower drainage assembly realizes the functions of water supplementing and water draining on the lower part of the left sample cylinder and the lower part of the right sample cylinder, and the water quantity of water draining and water supplementing is monitored in real time through the third gravity sensor and the fourth gravity sensor.
Further preferred are: the first test chamber and the second test chamber are both high-low temperature test chambers.
By adopting the technical scheme, the high-low temperature test box has the advantages of wide temperature change range, stable performance, accurate temperature change, accurate temperature and humidity acquisition result and high reliability.
Drawings
Fig. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic cross-sectional view of the upper glass cylinder in this embodiment;
FIG. 3 is a schematic cross-sectional view of the lower glass cylinder of the present embodiment;
FIG. 4 is a top view of the upper cooling bath tray in this embodiment;
FIG. 5 is a cross-sectional view taken along line 1-1 of FIG. 4;
FIG. 6 is a cross-sectional view taken along line 1-2 of FIG. 4;
FIG. 7 is a top view of the lower cooling bath tray of the present embodiment;
FIG. 8 is a cross-sectional view of FIG. 7, 2-1;
FIG. 9 is a cross-sectional view of 2-2 of FIG. 7;
FIG. 10 is a schematic diagram of a water supply and drainage device in the present embodiment;
reference numerals: 1-a refrigeration device; 11-a first test chamber; 12-a second test chamber; 13-permeable stone; 14-lower cooling bath tray; 141-a lower water supplementing port; 142-a lower outlet; 143-lower inlet; 144-lower exploratory hole; 145-lower weirs; 15-putting on a cold bath tray; 151-upper overflow port; 152-upper outlet; 153-upper probe hole; 154-upper inlet; 2-a data acquisition device; 21-a host; 16-grooves; 22-a display; 23-data acquisition instrument; 24-a data bus; 25-hygrothermograph; 3-a water supply and drainage device; 31-an upper drainage assembly; 311-first row of water bottles; 312-first water supply bottle; 313-a first water feed valve; 314—a first drain valve; 315—a first gravity sensor; 316-a second gravity sensor; 32-a drain down assembly; 321-second row of water bottles; 322-a second water supply bottle; 323-a third force sensor; 324-fourth gravity sensor; 325-a second water feed valve; 326-a second drain valve; 4-pressurizing means; 40-pneumatic pump; 401-switch; 41-supporting rods; 42-frame; 43-press; 44-a displacement sensor; 45-working rod; 46-pushing a disc; 47-floor; 48-a base; 49-slide lock; 6-right sample cylinder; 7-left sample cylinder; 70-heat preservation cotton; 71-jack; 72-a pressure cell; 73-a flange plate; 74-hoops.
Detailed Description
The present invention is described in further detail below with reference to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10.
The utility model provides a tillite soil gathers ice evolution process indoor model test system, as shown in fig. 1, includes left sample section of thick bamboo 7, right sample section of thick bamboo 6, data acquisition device 2, refrigerating plant 1, water supply and drainage device 3 and pressure device 4, and left sample section of thick bamboo 7, right sample section of thick bamboo 6 all set up in pressure device 4's bottom, have the distance between left sample section of thick bamboo 7 and the right sample section of thick bamboo 6. The outer walls of the left sample tube 7 and the right sample tube 6 are respectively coated with heat preservation cotton 70, so that the effect of simultaneously carrying out two groups of tests is achieved.
The data acquisition device 2 is connected with the left sample tube 7 and the right sample tube 6 respectively. The refrigerating device 1 is connected with a left sample tube 7 and a right sample tube 6 respectively, and the left sample tube 7 and the right sample tube 6 are connected in parallel into the refrigerating device 1. Thus, two sets of tests can be performed simultaneously.
The upper part of the pressurizing device 4 is connected with the upper part of the left sample tube 7 and the upper part of the right sample tube 6 respectively, and the bottom of the pressurizing device 4 is connected with the bottom of the left sample tube 7 and the bottom of the right sample tube 6 respectively.
One end of the water supply and drainage device 3 is respectively connected with the upper part of the left sample tube 7 and the upper part of the right sample tube 6, the other end of the water supply and drainage device 3 passes through the bottom of the pressurizing device 4, and the other end of the water supply and drainage device 3 is respectively connected with the bottom of the left sample tube 7 and the bottom of the right sample tube 6. The water supply and drainage device 3 is used for supplementing water and draining water to the left sample cylinder 7 and the right sample cylinder 6 respectively. The refrigerating apparatus 1 is used for supplying cold to the left and right sample cylinders 7 and 6, respectively.
As shown in fig. 1, 2 and 3, the side walls of the left and right sample cylinders 7 and 6 are respectively provided with a plurality of insertion holes 71, and the insertion holes 71 are spirally provided on the side walls of the left and right sample cylinders 7 and 6. The left sample tube 7 and the right sample tube 6 are respectively provided with a tillite soil body, a plurality of pressure boxes 72 are arranged in the tillite soil body, the number of the pressure boxes 72 is equal to that of the jacks 71, and the pressure boxes 72 correspond to the jacks 71 in position. The pressure cell 72 is internally provided with a pressure sensor which transmits the detected pressure value to the data acquisition instrument 23.
The data acquisition device 2 comprises a data bus 24, a plurality of hygrothermographs 25 and a data acquisition instrument 23, as shown in fig. 1, the data acquisition instrument 23 is respectively connected with the hygrothermographs 25, each hygrothermograph 25 is inserted into each insertion hole 71, each hygrothermograph 25 is inserted into a soil body, and the hygrothermograph 25 is used for detecting the temperature and the humidity around the soil body where the pressure box 72 is located. Because frost heaving force generated after the frost heaving of the tillite body cracks is easily concentrated in the weakest area, a plurality of spirally distributed modes are adopted, and the hygrothermograph 25 is inserted into each jack 71, so that stress damage to other holes is prevented. One end of the data bus 24 is respectively connected with a plurality of hygrothermographs 25, and the other end of the data bus is connected with the data acquisition instrument 23. The data acquisition instrument 23 is connected with the host computer 21, and the host computer 21 is connected with the display 22, carries out analysis processing to the pressure value detected by the pressure sensor and the temperature and humidity detected by the hygrothermograph 25 through the information processing system in the host computer 21, obtains result information, and displays the result information on the display 22, thereby realizing the data acquisition inside the tillus soil sample in the real-time monitoring test process, and reflecting the ice-gathering evolution process inside the tillus soil.
The left sample tube 7 has the same structure as the right sample tube 6, and the left sample tube 7 comprises an upper tube and a lower tube, as shown in fig. 1, 2 and 3, a flange 73 is arranged between the upper tube and the lower tube, the top surface of the flange 73 is connected with the bottom surface of the upper tube, and the bottom surface of the flange 73 is connected with the top surface of the lower tube. The upper cylinder is identical with the lower cylinder in structure, the upper cylinder comprises 2 semicircular cylinders, the joint of the 2 semicircular cylinders is bonded, specifically, a rubber sealing strip and vaseline are arranged at the joint, the rubber sealing strip and the vaseline are utilized for connection, hoops 74 and a flange 73 are arranged on the outer walls of the upper cylinder and the lower cylinder, the joint of the upper cylinder and the lower cylinder is connected through the flange 73, the inner wall of the hoops 74 is respectively connected with the outer wall of the upper cylinder and the outer wall of the lower cylinder, and the hoops 74 are used for fixing the left sample cylinder 7 and the right sample cylinder 6. Thus, the loading and unloading of the tillite soil sample are facilitated, and the subsequent stratified sampling and the subsequent X-ray diffraction analysis of the large-scale tillite soil sample are facilitated. The method can reduce disturbance in sampling and improve accuracy of test data.
Specifically, in this embodiment, the left sample tube 7 and the right sample tube 6 are both in a four-half arc structure, as shown in fig. 2 and 3, and by adopting a quarter arc splicing mode of 2 glass tubes, the installation and disassembly work of the tillite soil sample can be rapidly realized, so that the sample can be conveniently unloaded from the large-sized tillite soil sample, and the subsequent sample analysis on the tillite soil sample is also facilitated. The disturbance to the tillite soil sample is greatly reduced, and the subsequent further analysis of the tillite soil sample is facilitated.
The refrigerating apparatus 1 includes an upper cooling bath tray 15 and a lower cooling bath tray 14, and as shown in fig. 1, 4, 5, 6, 7, 8, and 9, the upper cooling bath tray 15 is provided on the upper portion of the inner wall of the left sample tube 7 and the upper portion of the inner wall of the right sample tube 6, and the lower cooling bath tray 14 is provided on the lower portion of the inner wall of the left sample tube 7 and the lower portion of the inner wall of the right sample tube 6. The upper cooling bath 15 is respectively provided with an upper overflow port 151, an upper outlet 152, an upper probe hole 153 and an upper inlet 154, the upper cooling bath 15 is used for respectively supplementing water and draining water to the upper part of the left sample tube 7, and the upper cooling bath 15 is used for respectively supplementing water and draining water to the upper part of the right sample tube 6. The lower cooling bath tray 14 is respectively provided with a lower water supplementing port 141, a lower outlet 142, a lower inlet 143, a lower exploratory hole 144 and a lower overflow port 145, the lower cooling bath tray 14 is used for respectively supplementing water and draining water to the lower part of the left sample tube 7, and the lower cooling bath tray 14 is used for respectively supplementing water and draining water to the lower part of the right sample tube 6. Like this, both satisfied the cooling efficiency to left sample section of thick bamboo 7 and right sample section of thick bamboo 6, can measure the surface temperature of tillus soil sample again, can also play the inside moisture of tillus soil sample and in time overflow, prevented that moisture from gathering in the cold bath dish department, hinder the frost heaving effect of soil body.
Specifically, it has the characteristics that: 1. through arranging hygrothermograph 25 and pressure box 72 in the large-scale tillite soil sample in a layered manner, a plurality of jacks 71 are spirally arranged on the side wall of left sample tube 7 and the side wall of right sample tube 6, the hygrothermograph 25 is spirally connected with a collecting device through left sample tube 7 and right sample tube 6, the hydrothermal migration and frost heaving force real-time monitoring in the unidirectional freeze thawing process of the tillite soil sample can be realized, the ice-gathering evolution process of the tillite soil is reflected, the automatic detection and feedback effects of test data are achieved, meanwhile, the linkage effect caused by the in-situ frost heaving force to the reserved hole of a sensor is prevented, and the test efficiency and the data accuracy are high.
2. The sealing effect of the left sample tube 7 and the right sample tube 6 after being assembled is ensured by using the flange plate 73, the hoop 74, the rubber sealing strip and the like, so that the test data is reliable and effective.
3. The upper cooling bath tray 15 and the lower cooling bath tray 14 are connected with the water supply and drainage device 3 to realize water supply and drainage. Through the connection of the upper cooling bath tray 15 and the lower cooling bath tray 14 with the refrigerating device 1, the temperatures of the cooling bath liquid and the top and bottom of the tillite sample are detected at any time, the rapid cooling of the tillite body can be realized, the data of the temperature sensor can be mutually verified, and the credibility of the data is improved. The purpose of simultaneously carrying out multiple groups of tests is achieved by arranging the left sample tube 7 and the right sample tube 6. Therefore, the data of the whole test device are automatically detected, and a plurality of groups of tests can be simultaneously carried out, so that the test precision is improved, and the test period is greatly shortened.
Specifically, in this embodiment, grooves 16 are formed in the upper inner wall of the left sample tube 7, the lower inner wall of the left sample tube 7, the upper inner wall of the right sample tube 6, and the lower inner wall of the right sample tube 6, and the grooves 16 are used for placing the permeable stones 13, so that the permeable stones 13 can be placed and fixed better, and the permeable stones 13 are displaced in the test process.
Specifically, the pressurizing device 4 in this embodiment includes a frame 42, a press 43, and a pneumatic pump 40, where the pneumatic pump 40 is fixed on the bottom surface of the frame 42, the working end of the press 43 passes through the top of the frame 42, the working end of the press 43 is connected with the upper cooling bath 15, the outlet of the pneumatic pump 40 is connected with the press 43, and the pneumatic pump 40 is used to provide power to the press 43. The pneumatic pump 40 is provided with a switch 401, and the pneumatic pump 40 is started to operate by operating the switch 401 to supply air source power to the press 43.
The working end of the press 43 is connected with a working rod 45, the working rod 45 is fixedly connected with the working end of the press 43, a pushing disc 46 is sleeved on the working rod 45, and the pushing disc 46 is fixedly connected with the working rod 45. The push plate 46 is provided with a displacement sensor 44.
The frame 42 is provided with a support bar 41, the upper end of the support bar 41 passes through the top of the frame 42, the upper end of the support bar 41 is connected with the top of the frame 42, the lower end of the support bar 41 is connected with a bottom plate 47, and the upper surface of the bottom plate 47 is connected with the lower cold bath 14.
The bottom of the frame 42 is provided with 2 seats 48, and the pneumatic pump 40 is located at a position between the 2 seats 48. The pneumatic pump 40 is started, the pneumatic pump 40 provides pressure for the press 43, the press 43 drives the pushing disc 46 to move after working, the pushing disc 46 moves to push the upper cooling bath disc 15 into the left sample cylinder 7 and the right sample cylinder 6, and joint plugging measures are carried out on the left sample cylinder 7 and the right sample cylinder 6, so that the whole test model is in a sealed state.
Specifically, in this embodiment, a plurality of slide locks 49 are respectively disposed between the bottom plate 47 and the base 48, and the top surface of each slide lock 49 is fixedly connected to the bottom surface of the bottom plate 47, and the bottom surface of the slide lock 49 is slidably connected to the base 48. The left sample cylinder 7 and the right sample cylinder 6 are moved through the slide lock 49 and the bottom plate 47, so that the mounting and dismounting work of the tillite soil sample can be rapidly realized, the disturbance to the soil sample is greatly reduced, and the subsequent further analysis of the tillite soil sample is facilitated.
Specifically, the refrigerating apparatus 1 in this embodiment includes a first test chamber 11 and a second test chamber 12, where an outlet of the first test chamber 11 is connected to an upper inlet 154 of an upper cooling bath tray 15 of the right sample tube 6, and the upper outlet 152 of the upper cooling bath tray 15 of the right sample tube 6 is connected to an upper inlet 154 of an upper cooling bath tray 15 of the left sample tube 7, and an upper outlet 152 of the upper cooling bath tray 15 of the left sample tube 7 is connected to an inlet of the first test chamber 11.
The outlet of the second test chamber 12 is connected with the lower inlet 143 of the lower cold bath tray 14 in the left test tube 7, the lower inlet 143 in the left test tube 7 is connected with the lower inlet 143 of the lower cold bath tray 14 of the right test tube 6, and the lower outlet 142 of the lower cold bath tray 14 in the right test tube 6 is connected with the inlet of the second test chamber 12. The first test chamber 11 is used for supplying cold to the upper part of the left and right test cylinders 7 and 6, and the second test chamber 12 is used for supplying cold to the lower part of the left and right test cylinders 7 and 6. The first test box 11 is used for providing cold energy to the upper part of the left test tube 7 and the upper part of the right test tube 6 respectively, and the second test box 12 is used for providing cold energy to the lower part of the left test tube 7 and the lower part of the right test tube 6 respectively, so that the purposes of cooling the cooling device through the upper cooling bath tray 15 and the lower cooling bath tray 14 and performing multiple groups of tests are realized.
Specifically, in this embodiment, the water supply and drainage device 3 includes an upper drainage assembly 31 and a lower drainage assembly 32, as shown in fig. 1 and 10, the data output end of the upper drainage assembly 31 and the data output end of the lower drainage assembly 32 are both connected with the data acquisition instrument 23. The upper drainage assembly 31 and the lower drainage assembly 32 are used for realizing real-time monitoring of water quantity during soil body water replenishing and drainage, and experimental data reliability is improved.
Specifically, in this embodiment, the upper water discharge assembly 31 includes a first water discharge bottle 311 and a first water supply bottle 312, as shown in fig. 10, an outlet of the first water supply bottle 312 is connected to a first water supply valve 313, an outlet of the first water discharge bottle 311 is connected to a first drain valve 314, and the upper overflow port 151 is connected to the first water supply valve 313 and the first drain valve 314, respectively. The bottom of the first water discharge bottle 311 is provided with a first gravity sensor 315, and the first gravity sensor 315 is adhered to the bottom of the first water discharge bottle 311. The bottom of the first water feeding bottle 312 is provided with a second gravity sensor 316, and the second gravity sensor 316 is adhered to the bottom of the first water feeding bottle 312. The first gravity sensor 315 and the second gravity sensor 316 are both in data connection with the data acquisition instrument 23. The first row of water bottles 311 and the first water supply bottle 312 are conical bottles. The upper parts of the left and right sample barrels 7 and 6 are subjected to water supplementing and draining through the upper draining assembly 31, and the water supplementing and draining amounts are measured in real time through the first and second gravity sensors 315 and 316.
Specifically, in this embodiment, the lower drainage assembly 32 includes a second drainage bottle 321 and a second water supply bottle 322, as shown in fig. 10, an outlet of the second water supply bottle 322 is connected to a second water supply valve 325, an outlet of the second water supply valve 325 is connected to the lower water replenishing port 141, a fourth gravity sensor 324 is disposed at a bottom of the second water supply bottle, and the fourth gravity sensor 324 is adhered to a bottom of the second water supply bottle 322. The outlet of the second water discharge bottle 321 is connected with a second drain valve 326, the outlet of the second drain valve 326 is connected with a lower overflow port 145, a third gravity sensor 323 is arranged at the bottom of the second water discharge bottle 321, and the third gravity sensor 323 is adhered to the bottom of the second water discharge bottle 321. The third gravity sensor 323 and the fourth gravity sensor 324 are both in data connection with the data acquisition instrument 23. The second water feeding bottle 322 and the second water discharging bottle 321 are respectively selected from Margaret bottles. The lower drain assembly 32 performs the functions of water supply and drain to the lower part of the left and right sample cartridges 7 and 6, and monitors the amounts of water to be drained and supplied in real time by the third and fourth gravity sensors 323 and 324. Simulation test process:
referring to fig. 1-10, the following is a simulation test procedure for migration of water, heat, force and mineral elements during unidirectional freeze thawing of the tillite under open conditions:
Step 1: the pressurizing device 4 is moved out by the slide lock 49, and the left sample cylinder 7 and the right sample cylinder 6 are respectively divided into an upper part and a lower part for assembly. The method specifically comprises the following steps: a lower cooling bath tray 14, a rubber pad, a permeable stone 13, a lower cylinder of the left sample cylinder 7 or a lower cylinder of the right sample cylinder 6 are placed in order from bottom to top. A thin vaseline layer is uniformly smeared on the inner wall of the lower cylinder of the left sample cylinder 7 or the lower cylinder of the right sample cylinder 6, the prepared tillite soil sample layer is put into the left sample cylinder 7 or the right sample cylinder 6, the temperature and humidity meter 25 is inserted in a spiral mode at equal intervals, the pressure box 72 is arranged, and a gap between the temperature and humidity meter 25 and the jack 71 is smeared with rubber mud or glass cement for complete sealing.
Step 2: the upper cylinder of the left sample cylinder 7 is connected with the lower cylinder of the left sample cylinder 7 by a flange 73, layered sample loading is continued, a permeable stone 13 is placed above the tillite body after the layered sample loading is completed, and then an upper cooling bath disc 15 is slowly pushed into the left sample cylinder 7 by a press 43 and placed above the permeable stone 13. The upper cylinder of the right sample cylinder 6 is connected with the lower cylinder of the right sample cylinder 6 by a flange 73, layered sample loading is continued, a permeable stone 13 is placed above a tillite body after the layered sample loading is completed, and then an upper cooling bath disc 15 is slowly pushed into the left sample cylinder 7 by a press 43 and is placed above the permeable stone 13.
Step 3: the model cylinder is slowly pushed into the base 48 of the pressurizing device 4, the number and the positions of the hoops 74 are designed according to the height of the model frame, the displacement sensor 44 is arranged on the push disc 46, and seam plugging measures are carried out, so that the whole left sample cylinder 7 and the right sample cylinder 6 are in a sealed state.
Step 4: the upper cooling bath tray 15 is respectively connected with a first row of water bottles 311 and a first water supply bottle 312, the lower cooling bath tray 14 is respectively connected with a second water supply bottle 322, a first water supply valve 313 is opened to perform water saturation action on the soil sample of the moraine before the test starts, and the first water supply valve 313 of the upper cooling bath tray 15 is closed after the test starts.
Step 5: the upper part of the left sample tube 7 and the upper part of the right sample tube 6 are connected to the first test chamber 11, and the lower part of the left sample tube 7 and the lower part of the right sample tube are connected to the second test chamber 12, respectively.
Step 6: the two test model drums are respectively wrapped by the heat preservation cotton 70, the second water supply valve 325 and the second drain valve 326 are simultaneously opened, the air exhaust operation in the pipeline in the lower cold bath tray 14 is completed, the second drain valve 326 is closed, the sample is saturated with water through the water inlet of the lower cold bath tray 14, and the second water supply valve 325 is closed after the water saturation is completed.
Step 7: the hygrothermograph 25 is respectively inserted into the insertion holes 71, and the hygrothermograph 25 is connected with the data acquisition instrument 23 through a data line, so that the connection line is ensured to be correct.
Step 8: according to the freezing temperature of the tillite soil body measured in advance, the lowest freezing temperature is set in the first test box 11 and the second test box 12 during the unidirectional freezing and thawing test of the tillite soil body, the set cold end temperature is lower than the freezing temperature of the tillite soil body, the lower end of the test design is a warm end, the upper end is a cold end, after the first test box 11 and the second test box 12 are opened for a period of time, whether the temperature values measured by the temperature probes in the upper cold bath tray 15 and the lower cold bath tray 14 are consistent with the temperature values set by an instrument or not is observed, and the purpose of mutual verification is further achieved.
Step 9: before the freezing test starts, the second water supply valve 325 in the lower cooling bath tray 14 is opened, and the water outlet valve is closed. Closing the second water supply valve 325 during one-way melting, and opening the second water discharge valve 326; the test preparation software in the computer processor is used for setting information such as data acquisition initial flow rate, information acquisition interval, water inlet and outlet difference and the like, so that the real-time feedback effect of the data information is achieved.
Step 10: after the test requirements are met, the first test box 11, the second test box 12, the computer and the data acquisition instrument 23 work and stop running, the tillite sample is rapidly pushed out by the slide lock 49 to be sampled, the sample is layered to carry out X-ray diffraction analysis, and the mineral element migration rule of the tillite sample at different positions can be explored. The unidirectional freeze thawing cycle test of the large-scale tillite soil body is finished.
1. By arranging the hygrothermograph 25 and the pressure cell 72 in layers inside the large-sized tillite sample, the plurality of insertion holes 71 are spirally formed in the side wall of the left sample tube 7 and the side wall of the right sample tube 6. By testing the temperature and humidity and the frost heaving force of the tillite at different moments and different positions, the frost heaving effect of the tillite at different moments and different positions in the freeze thawing process can be reflected. The real-time monitoring of the hydrothermal migration and frost heaving force of the tillite soil sample in the unidirectional freezing and thawing process is realized, and the automatic detection and feedback effects of test data are achieved. Meanwhile, the spiral layout mode can prevent the in-situ frost heaving force from damaging and generating linkage effects on the sensor reserved hole on the sample tube, and the test efficiency and the data accuracy are high.
2. The sealing effect of the left sample tube 7 and the right sample tube 6 after assembly is guaranteed by means of the flange plate 73, the hoop 74, the rubber sealing strips and the like, meanwhile, the left sample tube 7 and the right sample tube 6 are convenient to detach by adopting the four-semicircular arc structures, disturbance can be reduced, and accuracy of test data is improved.
3. The upper cooling bath tray 15 and the lower cooling bath tray 14 are connected with the water supply and drainage device 3, so that the purposes of water supply and drainage are realized. Through the connection of the upper cooling bath tray 15 and the lower cooling bath tray 14 with the refrigerating device 1, the temperatures of the cooling bath liquid and the top and bottom of the tillite sample are detected at any time, the rapid cooling of the soil body of the tillite can be realized, the data acquired by the hygrothermograph can be mutually verified, and the reliability of the data is improved. The purpose of simultaneously performing multiple groups of tests is also achieved by providing a left sample cartridge 7 and a right sample cartridge 6. Therefore, the data of the whole test device are automatically detected, and a plurality of groups of tests can be simultaneously carried out, so that the test precision is improved, and the test period is greatly shortened.
The present embodiment is merely illustrative of the invention and is not intended to limit the invention, and those skilled in the art, after having read the present specification, may make modifications to the embodiment without creative contribution as required, but are protected by patent laws within the protection scope of the present invention.
Claims (10)
1. The utility model provides a tillite soil gathers ice evolution process indoor model test system which characterized in that: the device comprises a left sample tube (7), a right sample tube (6), a data acquisition device (2), a refrigerating device (1), a water supply and drainage device (3) and a pressurizing device (4), wherein the left sample tube (7) and the right sample tube (6) are arranged at the bottom of the pressurizing device (4), and a distance exists between the left sample tube (7) and the right sample tube (6);
the data acquisition device (2) is respectively connected with the left sample tube (7), the right sample tube (6) and the water supply and drainage device (4); the refrigerating device (1) is respectively connected with the left sample tube (7) and the right sample tube (6), and the left sample tube (7) and the right sample tube (6) are connected in parallel into the refrigerating device (1);
the upper part of the pressurizing device (4) is respectively connected with the upper part of the left sample tube (7) and the upper part of the right sample tube (6), and the bottom of the pressurizing device (4) is respectively connected with the bottom of the left sample tube (7) and the bottom of the right sample tube (6);
One end of the water supply and drainage device (3) is respectively connected with the upper part of the left sample tube (7) and the upper part of the right sample tube (6), the other end of the water supply and drainage device (3) passes through the bottom of the pressurizing device (4), and the other end of the water supply and drainage device (3) is respectively connected with the bottom of the left sample tube (7) and the bottom of the right sample tube (6); the water supply and drainage device (3) is used for supplementing water and draining water to the left sample cylinder (7) and the right sample cylinder (6) respectively; the refrigerating device (1) is used for providing cold energy for the left sample cylinder (7) and the right sample cylinder (6) respectively;
a plurality of jacks (71) are respectively formed in the side wall of the left sample tube (7) and the side wall of the right sample tube (6), and the jacks (71) are spirally arranged on the side wall of the left sample tube (7) and the side wall of the right sample tube (6) respectively; the left sample tube (7) and the right sample tube (6) are respectively provided with a soil body, a plurality of pressure boxes (72) are arranged in the soil body, the number of the pressure boxes (72) is equal to that of the jacks (71), and the positions of the pressure boxes (72) and the jacks (71) are corresponding;
the data acquisition device (2) comprises a plurality of hygrothermographs (25) and a data acquisition instrument (23), the data acquisition instrument (23) is respectively connected with the hygrothermographs (25), each hygrothermograph (25) is inserted into each jack (71), each hygrothermograph is inserted into the soil body, and the hygrothermograph (25) is used for detecting the temperature and the humidity around the soil body where the pressure box (72) is located;
The left sample tube (7) has the same structure as the right sample tube (6), the left sample tube (7) comprises an upper tube and a lower tube, a flange plate (73) is arranged between the upper tube and the lower tube, the top surface of the flange plate (73) is connected with the bottom surface of the upper tube, and the bottom surface of the flange plate (73) is connected with the top surface of the lower tube; the upper cylinder is identical to the lower cylinder in structure, the upper cylinder comprises 2 semicircular cylinders, the joints of the 2 semicircular cylinders are bonded, hoops (74) are arranged on the outer walls of the upper cylinder and the lower cylinder, the inner walls of the hoops (74) are respectively connected with the outer walls of the upper cylinder and the lower cylinder, and the hoops (74) are used for fixing the left sample cylinder (7) and the right sample cylinder (6);
the refrigerating device (1) comprises an upper cooling bath disc (15) and a lower cooling bath disc (14), wherein the upper cooling bath disc (15) is respectively connected with the upper inner wall of the left sample tube (7) and the upper inner wall of the right sample tube (6), and the lower cooling bath disc (14) is respectively connected with the lower inner wall of the left sample tube (7) and the lower inner wall of the right sample tube (6); the upper cooling bath disc (15) is respectively provided with an upper overflow port (151), an upper outlet (152), an upper exploratory hole (153) and an upper inlet (154), the upper cooling bath disc (15) is used for respectively supplementing water and draining water to the upper part of the left sample tube (7), and the upper cooling bath disc (15) is used for respectively supplementing water and draining water to the upper part of the right sample tube (6); the lower cooling bath disc (14) is respectively provided with a lower water supplementing port (141), a lower outlet (142), a lower inlet (143), a lower exploratory hole (144) and a lower overflow port (145), the lower cooling bath disc (14) is used for respectively supplementing water and draining water to the lower part of the left sample tube (7), and the lower cooling bath disc (14) is used for respectively supplementing water and draining water to the lower part of the right sample tube (6).
2. The tillite ice-gathering evolution process indoor model test system according to claim 1, wherein: the upper inner wall of the left sample tube (7), the lower inner wall of the left sample tube (7), the upper inner wall of the right sample tube (6) and the lower inner wall of the right sample tube (6) are provided with grooves (16), and the grooves (16) are used for placing permeable stones (13).
3. The tillite ice-gathering evolution process indoor model test system according to claim 1, wherein: the left sample tube (7) and the right sample tube (6) are of a four-semicircle arc structure.
4. The tillite ice-gathering evolution process indoor model test system according to claim 1, wherein: the pressurizing device (4) comprises a frame (42), a press (43) and a pneumatic pump (40), wherein the pneumatic pump (40) is fixed on the bottom surface of the frame (42), the working end of the press (43) penetrates through the top of the frame (42), the working end of the press (43) is connected with the upper cooling bath tray (15), the outlet of the pneumatic pump (40) is connected with the press (43), and the pneumatic pump (40) is used for providing power for the press (43);
the working end of the press (43) is connected with a working rod (45), the working rod (45) is fixedly connected with the working end of the press (43), a pushing disc (46) is sleeved on the working rod (45), and the pushing disc (46) is fixedly connected with the working rod (45); a displacement sensor (44) is arranged on the pushing disc (46);
The frame (42) is provided with a supporting rod (41), the upper end of the supporting rod (41) penetrates through the top of the frame (42), the upper end of the supporting rod (41) is connected with the top of the frame (42), the lower end of the supporting rod (41) is connected with a bottom plate (47), and the upper surface of the bottom plate (47) is connected with a lower cold bath plate (14); the bottom of the frame (42) is provided with 2 bases (48), and the pneumatic pump (40) is positioned at a position between 2 bases (48).
5. The tillite ice-gathering evolution process indoor model test system according to claim 4, wherein: a plurality of slide locks (49) are respectively arranged between the bottom plate (47) and the base (48), the top surface of each slide lock (49) is fixedly connected with the bottom surface of the bottom plate (47), and the bottom surface of each slide lock (49) is in sliding connection with the base (48).
6. The tillite ice-gathering evolution process indoor model test system according to claim 1, wherein: the refrigerating device (1) comprises a first test box (11) and a second test box (12), wherein an outlet of the first test box (11) is connected with the upper inlet (154) of the upper cold bath disc (15) of the right test cylinder (6), the upper outlet (152) of the upper cold bath disc (15) of the right test cylinder (6) is connected with the upper inlet (154) of the upper cold bath disc (15) of the left test cylinder (7), and the upper outlet (152) of the upper cold bath disc (15) of the left test cylinder (7) is connected with an inlet of the first test box (11);
The outlet of the second test chamber (12) is connected with the lower inlet (143) of the lower cold bath tray (14) in the left test tube (7), the lower inlet (143) in the left test tube (7) is connected with the lower inlet (143) of the lower cold bath tray (14) of the right test tube (6), and the lower outlet (142) of the lower cold bath tray (14) in the right test tube (6) is connected with the inlet of the second test chamber (12); the first test box (11) is used for providing cold energy to the upper part of the left test tube (7) and the upper part of the right test tube (6), and the second test box (12) is used for providing cold energy to the lower part of the left test tube (7) and the lower part of the right test tube (6).
7. The tillite ice-gathering evolution process indoor model test system according to claim 1, wherein: the water supply and drainage device (3) comprises an upper drainage assembly (31) and a lower drainage assembly (32), and the data output end of the upper drainage assembly (31) and the data output end of the lower drainage assembly (32) are connected with the data acquisition instrument (23).
8. The tillite ice-making evolution process indoor model test system according to claim 7, wherein: the upper water draining assembly (31) comprises a first water draining bottle (311) and a first water feeding bottle (312), wherein the outlet of the first water feeding bottle (312) is connected with a first water feeding valve (313), the outlet of the first water draining bottle (311) is connected with a first water draining valve (314), and the upper overflow port (151) is respectively connected with the first water feeding valve (313) and the first water draining valve (314); a first gravity sensor (315) is arranged at the bottom of the first water discharge bottle (311), and the first gravity sensor (315) is adhered to the bottom of the first water discharge bottle (311); a second gravity sensor (316) is arranged at the bottom of the first water feeding bottle (312), and the second gravity sensor (316) is adhered to the bottom of the first water feeding bottle (312); the first gravity sensor (315) and the second gravity sensor (316) are both in data connection with the data acquisition instrument (23).
9. The tillite ice-making evolution process indoor model test system according to claim 7, wherein: the lower drainage assembly (32) comprises a second water draining bottle (321) and a second water feeding bottle (322), wherein an outlet of the second water feeding bottle (322) is connected with a second water feeding valve (325), an outlet of the second water feeding valve (325) is connected with the lower water supplementing port (141), a fourth gravity sensor (324) is arranged at the bottom of the second water feeding bottle, and the fourth gravity sensor (324) is adhered to the bottom of the second water feeding bottle (322); the outlet of the second water discharge bottle (321) is connected with a second drain valve (326), the outlet of the second drain valve (326) is connected with the lower overflow port (145), a third gravity sensor (323) is arranged at the bottom of the second water discharge bottle (321), and the third gravity sensor (323) is adhered to the bottom of the second water discharge bottle (321); and the third gravity sensor (323) and the fourth gravity sensor (324) are in data connection with the data acquisition instrument (23).
10. The tillite ice-gathering evolution process indoor model test system according to claim 6, wherein: the first test box (11) and the second test box (12) are high-low temperature test boxes.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364266A (en) * | 2013-07-24 | 2013-10-23 | 中国矿业大学 | Two-dimensional temperature gradient frozen soil test device and use method thereof |
| CN104316391A (en) * | 2014-10-10 | 2015-01-28 | 同济大学 | Freezing and thawing test model device and method of simulating artificial ground freezing method |
| CN204154664U (en) * | 2014-10-15 | 2015-02-11 | 中国科学院寒区旱区环境与工程研究所 | Soil sample freezing-thawing test device |
| US9880081B1 (en) * | 2017-03-07 | 2018-01-30 | Ramesh Chandra Gupta | Expandable jacket for triaxial, unconfined and uniaxial compression tests and test device for three-dimensional consolidation and settlement tests |
| WO2019214007A1 (en) * | 2018-05-23 | 2019-11-14 | 安徽理工大学 | Artificial ground freezing experimental device and experimental method for dynamically acquiring multiple parameters |
| CN110824141A (en) * | 2019-10-24 | 2020-02-21 | 中国电力科学研究院有限公司 | A multifunctional frozen soil model test device and its test method |
| CN110954675A (en) * | 2019-12-03 | 2020-04-03 | 同济大学 | A special device and research method for seasonal frozen soil indoor test |
| CN111982955A (en) * | 2020-07-30 | 2020-11-24 | 哈尔滨工业大学 | Unsaturated roadbed soil freeze-thaw cycle model test system |
-
2021
- 2021-07-27 CN CN202110847287.1A patent/CN113671151B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364266A (en) * | 2013-07-24 | 2013-10-23 | 中国矿业大学 | Two-dimensional temperature gradient frozen soil test device and use method thereof |
| CN104316391A (en) * | 2014-10-10 | 2015-01-28 | 同济大学 | Freezing and thawing test model device and method of simulating artificial ground freezing method |
| CN204154664U (en) * | 2014-10-15 | 2015-02-11 | 中国科学院寒区旱区环境与工程研究所 | Soil sample freezing-thawing test device |
| US9880081B1 (en) * | 2017-03-07 | 2018-01-30 | Ramesh Chandra Gupta | Expandable jacket for triaxial, unconfined and uniaxial compression tests and test device for three-dimensional consolidation and settlement tests |
| WO2019214007A1 (en) * | 2018-05-23 | 2019-11-14 | 安徽理工大学 | Artificial ground freezing experimental device and experimental method for dynamically acquiring multiple parameters |
| CN110824141A (en) * | 2019-10-24 | 2020-02-21 | 中国电力科学研究院有限公司 | A multifunctional frozen soil model test device and its test method |
| CN110954675A (en) * | 2019-12-03 | 2020-04-03 | 同济大学 | A special device and research method for seasonal frozen soil indoor test |
| CN111982955A (en) * | 2020-07-30 | 2020-11-24 | 哈尔滨工业大学 | Unsaturated roadbed soil freeze-thaw cycle model test system |
Non-Patent Citations (2)
| Title |
|---|
| 模拟冰碛土结构的元胞自动机模型;徐鼎平;汪斌;江龙剑;曹作忠;;金属矿山(01);全文 * |
| 泸定大渡河桥冰碛土剪切蠕变特性试验研究;程强;郭喜峰;杨莹辉;;工程科学与技术(03);全文 * |
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