CN112145192A - Soft rock tunnel boring machine and construction method thereof - Google Patents
Soft rock tunnel boring machine and construction method thereof Download PDFInfo
- Publication number
- CN112145192A CN112145192A CN202010826005.5A CN202010826005A CN112145192A CN 112145192 A CN112145192 A CN 112145192A CN 202010826005 A CN202010826005 A CN 202010826005A CN 112145192 A CN112145192 A CN 112145192A
- Authority
- CN
- China
- Prior art keywords
- cutting
- excavator
- quick
- connector
- soft rock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 100
- 229910003460 diamond Inorganic materials 0.000 claims description 19
- 239000010432 diamond Substances 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 8
- 230000005641 tunneling Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005422 blasting Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 210000000245 forearm Anatomy 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000251133 Sphyrna tiburo Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a soft rock tunnel boring machine and a construction method thereof, belonging to the technical field of tunnel construction and solving the problems of large influence on a soft rock stratum, higher construction difficulty and cost when boring equipment bores in the prior art, and comprising the following steps: the excavator is fixedly connected with a quick-change connector, and one side of the quick-change connector, which is far away from the excavator body, is respectively detachably connected with a cutting device and a crushing device; according to the invention, the tunnel face is subjected to gridding and cutting, so that the internal stress of rocks is reduced, the whole part of the whole tunnel face is broken into parts, and the excavation difficulty of the tunnel face is reduced; the invention utilizes the characteristics of convenient movement and flexible working arm of the excavator to realize that the cutting device moves to different positions of the tunnel face for cutting by controlling the large arm and the small arm of the excavator.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly belongs to a soft rock tunnel boring machine and a construction method thereof.
Background
Currently, with the continuous expansion of the scale of engineering construction in China, tunnel construction in China has an unprecedented development opportunity, and the tunnel construction in China also undoubtedly becomes a world tunnel kingdom. Soft rock is an engineering rock mass which can generate obvious deformation under the action of engineering force, and at present, three main methods are used for the construction of soft rock stratum tunnels in China: drilling and blasting, shield method and cantilever excavator method.
The drilling and blasting method is a traditional construction method for breaking rock mass by blasting explosive to open a cavern, and the rock mass is broken to form a loose state due to blasting influence after tunnel excavation, so that collapse is easily caused; the shield method is a fully mechanized construction method in the construction of the undercut method, it is to impel the shield machinery in the ground, prevent the collapse to the tunnel in through shield outer casing and segment support surrounding rock, excavate the soil body with the cutting device in front of the excavation face at the same time, transport out of the hole through the unearthing machinery, lean on the jack to pressurize and jack in the rear portion, and assemble the precast concrete segment, form a mechanized construction method of the tunnel structure, its construction process does not influence the ground traffic, but the section adaptive capacity to the variable size of section is poor and the equipment cost is high; the cantilever heading machine is a combined unit capable of realizing cutting, loading and transporting, self-walking and spray dust removal, but the cantilever heading machine has large equipment investment and high construction cost. Therefore, tunneling equipment with small influence on the stratum, low construction difficulty and low cost is urgently needed for tunneling the soft rock stratum.
Disclosure of Invention
The invention provides a soft rock tunnel boring machine and a construction method, aiming at the problems of large influence on a soft rock stratum, high construction difficulty and high cost of a boring device in the prior art, and aims to provide a soft rock tunnel boring machine and a construction method, wherein the soft rock tunnel boring machine comprises: and the soft rock tunnel is subjected to grid cutting, so that the internal stress of the rock stratum is reduced, and the excavation difficulty is reduced.
The technical scheme adopted by the invention is as follows:
a soft rock tunneling machine comprising: the excavator, the rigid coupling has the quick change over connector on the excavator, the quick change over connector is kept away from one side of excavator body and can be dismantled and be connected with cutting device and breaker.
By adopting the scheme, the existing excavator is improved, the quick conversion connector is arranged on the forearm of the excavator, the cutting device is arranged on the quick conversion connector, the two valves are additionally arranged on the hydraulic system of the original excavator and are connected with the control system of the excavator operating room through the hydraulic circuit, so that the control of the cutting device is realized, when the soft rock tunnel is tunneled by using the device, the cutting device is firstly controlled to perform transverse and longitudinal grid type cutting on the tunnel face, then the cutting device is disassembled and replaced by the crushing device to perform crushing tunneling on the cut tunnel face, the blasting method construction is replaced, the problems of rock strength reduction, structure looseness, large-area collapse and the like caused by blasting vibration are avoided, the large-scale mechanical construction using a cantilever tunneling machine, a shield tunneling machine and the like is also replaced, and the construction cost is effectively reduced; according to the invention, the tunnel face is subjected to gridding and cutting, so that the internal stress of rocks is reduced, the whole part of the whole tunnel face is broken into parts, and the excavation difficulty of the tunnel face is reduced; the invention utilizes the characteristics of convenient movement and flexible working arm of the excavator, realizes the longitudinal movement of the cutting device on the tunnel face by controlling the large arm and the small arm of the excavator, and realizes the transverse movement of the cutting device on the tunnel face by utilizing the crawler-type structure at the bottom of the excavator; according to the invention, the rapid switching connector is used for switching the cutting mode and the crushing mode, the cutting device is replaced by the crushing device, the rapid switching connector is hydraulically driven to clamp various cutters, various tunneling cutters (the cutting device and the crushing device) can be rapidly replaced or installed, the operation is simple and rapid, the mode switching time is less than 20 minutes, the working efficiency of tunneling is effectively improved, and the successful tunneling of a soft rock tunnel is ensured.
Preferably, the cutting device is a cutting chain saw, the cutting chain saw comprises a transverse moving device, a longitudinal moving device, a pushing cutting device and a cutter rotating device, one side of the longitudinal moving device is detachably connected with the quick switching connector, the cutter rotating device is fixedly arranged on one side of the longitudinal moving device far away from the quick switching connector, the transverse moving device is fixedly arranged on one side of the cutter rotating device far away from the longitudinal moving device, the pushing cutting device is fixedly arranged on one side of the transverse moving device far away from the cutter rotating device, and a diamond chain saw is fixedly arranged on the pushing cutting device. With this preferred aspect, the present invention provides a cutting device capable of performing a grid-type cutting operation in the transverse and longitudinal directions on a tunnel face, and the cutting device is configured to rotate a diamond chain saw, advance the cutting operation, change the cutting direction of the diamond chain saw, and perform the cutting operation in the transverse and longitudinal directions by using a transverse moving device, a longitudinal moving device, a cutter rotating device, and an advancing cutting device.
Preferably, the crushing device is a milling and digging head, the milling and digging head comprises a base, a fourth hydraulic motor and a cutter head, the base is fixedly connected with the quick-change connector, the fourth hydraulic motor is fixedly arranged on one side, far away from the quick-change connector, of the base, and the fourth hydraulic motor is rotatably connected with the cutter head. By adopting the preferable scheme, the invention provides the crushing device, the fourth hydraulic motor is driven to rotate by the hydraulic system of the excavator, so that the cutter head is driven to rotate, and the cutting excavation of tunnel rocks is carried out.
Preferably, the crushing device is an impact crushing hammer, the impact crushing hammer comprises a cylinder body and a drill rod, one side of the cylinder body is fixedly connected with the quick-change connector, the other side of the cylinder body is connected with a piston rod, and the end, far away from the cylinder body, of the piston rod is fixedly connected with the drill rod. By adopting the preferred scheme, the pump station of the excavator provides power to drive the piston rod in the cylinder body to reciprocate, so that the drill rod generates high-frequency crushing acting force, the rock stratum generates cracks, impacts and is crushed or crushed, and the tunneling of the tunnel is realized.
A construction method of a soft rock tunnel boring machine comprises the following steps:
step A: installing a quick-change connector on the excavator, and installing a cutting device on the quick-change connector;
and B: controlling a cutting device to cut the tunnel face through an excavator, and cutting the tunnel face into a plurality of block faces;
and C: disassembling the cutting chain saw and installing the breaking hammer device on the quick switching connector;
step D: controlling a crushing device to crush each block surface through an excavator;
step E: and the crushed dregs are conveyed out of the tunnel through a slag discharging device at the bottom of the excavator and a belt conveyor.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention improves the existing excavator, the quick switching connector is arranged on the forearm of the excavator, the cutting device is arranged on the quick switching connector, two valves are additionally arranged on the hydraulic system of the original excavator, and the quick switching connector is connected with the control system of the excavator operating room through a hydraulic loop to realize the control of the cutting device; according to the invention, the tunnel face is subjected to gridding and cutting, so that the internal stress of rocks is reduced, the whole part of the whole tunnel face is broken into parts, and the excavation difficulty of the tunnel face is reduced; the invention utilizes the characteristics of convenient movement and flexible working arm of the excavator, realizes the longitudinal movement of the cutting device on the tunnel face by controlling the large arm and the small arm of the excavator, and realizes the transverse movement of the cutting device on the tunnel face by utilizing the crawler-type structure at the bottom of the excavator; according to the invention, the rapid switching connector is used for switching the cutting mode and the crushing mode, the cutting device is replaced by the crushing device, the rapid switching connector is hydraulically driven to clamp various cutters, various tunneling cutters (the cutting device and the crushing device) can be rapidly replaced or installed, the operation is simple and rapid, the mode switching time is less than 20 minutes, the working efficiency of tunneling is effectively improved, and the successful tunneling of a soft rock tunnel is ensured.
2. The invention provides a cutting device, which can perform transverse and longitudinal grid type cutting on a tunnel face, and realizes the rotation, the propulsion cutting, the change of the cutting direction and the transverse and longitudinal cutting of a diamond chain saw by a transverse moving device, a longitudinal moving device, a cutter rotating device and a propulsion cutting device.
3. The invention provides a crushing device, wherein a fourth hydraulic motor is driven to rotate by a hydraulic system of an excavator, so that a tool bit is driven to rotate, and cutting and excavation of tunnel rocks are carried out; the pump station of the excavator provides power to drive the piston rod in the cylinder body to reciprocate, so that the drill rod generates high-frequency crushing acting force, the rock stratum generates a crack, impact crushing or crushing state, and tunneling of the tunnel is realized.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of: a schematic side view angle of one embodiment of the present invention.
FIG. 2 is a diagram of: a schematic side view angle of another embodiment of the present invention.
FIG. 3 is a diagram of: a schematic side view angle of yet another embodiment of the present invention.
FIG. 4 is a diagram of: a side view angle schematic of one embodiment of the cutting chain saw of the present invention.
FIG. 5 is a diagram of: a front view schematic of one embodiment of the cutting chain saw of the present invention.
FIG. 6 is a diagram of: the main view angle schematic diagram of a specific implementation mode in the working state of the invention.
Reference numerals: 1-an excavator; 2-a quick-change connector; 3-cutting the chain saw; 4-a lateral movement device; 5-longitudinal moving means; 6-advancing the cutting device; 7-tool rotating means; 8-diamond chain saw; 9-milling and digging a head; 10-a machine base; 11-a fourth hydraulic motor; 12-a cutter head; 13-impact breaker hammer; 14-a cylinder body; 15-a drill rod; 16-a piston rod; 17-; 18-a longitudinally moving platform; 19-a first hydraulic motor; 20-a first lead screw; 21-a rotary hydraulic motor; 22-a second hydraulic motor; 23-a second lead screw; 24-a hydraulic cylinder; 25-a third hydraulic motor; 26-a metal shield; 27-support rollers; 28-optical axis.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention is described in detail below with reference to fig. 1-5.
A soft rock tunneling machine comprising: excavator 1, the rigid coupling has quick change over connector 2 on excavator 1, quick change over connector 2 keeps away from one side of excavator 1 and can dismantle and be connected with cutting device and breaker.
The cutting device is a cutting chain saw 3, the cutting chain saw 3 comprises a transverse moving device 4, a longitudinal moving device 5, a pushing cutting device 6 and a cutter rotating device 7, one side of the longitudinal moving device 5 is detachably connected with the quick switching connector 2, the cutter rotating device 7 is fixedly arranged on one side, away from the quick switching connector 2, of the longitudinal moving device 5, the transverse moving device 4 is fixedly arranged on one side, away from the longitudinal moving device 5, of the cutter rotating device 7, the pushing cutting device 6 is fixedly arranged on one side, away from the cutter rotating device 7, of the transverse moving device 4, and a diamond chain saw 8 is fixedly arranged on the pushing cutting device 6.
The crushing device is a milling and digging head 9, the milling and digging head 9 comprises a machine base 10, a fourth hydraulic motor 11 and a cutter head 12, the machine base 10 is fixedly connected with the quick-change connector 2, the fourth hydraulic motor 11 is fixedly arranged on one side, far away from the quick-change connector 2, of the machine base 10, and the fourth hydraulic motor 11 is rotatably connected with the cutter head 12.
The crushing device is an impact crushing hammer 13, the impact crushing hammer 13 comprises a cylinder body 14 and a drill rod 15, one side of the cylinder body 14 is fixedly connected with the quick-change connector 2, the other side of the cylinder body 14 is connected with a piston rod 16, and the end part, far away from the cylinder body 14, of the piston rod 16 is fixedly connected with the drill rod 15.
A construction method of a soft rock tunnel boring machine comprises the following steps:
step A: installing a quick-change connector on the excavator, and installing a cutting device on the quick-change connector;
and B: controlling a cutting device to cut the tunnel face through an excavator, and cutting the tunnel face into a plurality of block faces;
and C: disassembling the cutting chain saw and installing the crushing device on the quick switching connector;
step D: controlling a crushing device to crush each block surface through an excavator;
in the above embodiment, the existing excavator 1 is improved, the shovel head of the excavator 1 is removed, the quick-change connector 2 is installed at the front end of the forearm of the excavator 1, various tools such as a cutting chain saw 3, a milling and digging head 9, an impact breaking hammer and the like can be installed at the front end of the quick-change connector 2, and a corresponding hydraulic locking mechanism is arranged at the front end of the quick-change connector 2 and can clamp and fix the tools; and two valves are additionally arranged on an original hydraulic system of the excavator 1, the hydraulic circuit is connected with a control system in an operating room of the excavator 1, the control of a cutting chain saw 3 is realized, mode switching is needed after grid cutting is carried out on a tunnel section, the cutting chain saw 3 is replaced by a milling and digging head 9 or an impact breaking hammer, the quick switching connector 2 is driven by hydraulic pressure, a movable clamping plate is pushed to move by a second hydraulic cylinder, various tunneling accessories (the cutting chain saw 3, the breaking hammer, the milling and digging head 9, a bucket and the like) can be installed in a quick replacement mode, a crawler-type walking mechanism is arranged at the bottom of the excavator 1, the cutting of the whole tunnel section in the width direction can be realized by moving the position of the excavator 1, and a slag discharging device is further designed at the bottom of the excavator 1 and comprises a star wheel. The broken slag can be conveyed to a slag car behind the tunneling machine in a centralized manner and conveyed out of the tunnel, the star wheel type slag scraping device is driven by a low-speed high-torque hydraulic motor, and the hydraulic pump station of the excavator 1 provides power to collect materials. The hydraulic system can telescopically adjust the inclination angle of the shovel plate and is reasonably configured according to the conveying speed and the conveying capacity of the feeding belt conveyor.
The used cutting chain saw 3 is divided into four parts, namely a longitudinal moving device 5 for realizing the longitudinal cutting of the diamond chain saw 8, a transverse moving device 4 for realizing the transverse cutting of the diamond chain saw 8, a cutter rotating device 7 for changing the cutting direction of the diamond chain saw 8, a cutting device 6 for pushing the diamond chain saw 8 into the tunnel face,
the specific longitudinal moving device 5 comprises a longitudinal moving platform, one side of the longitudinal moving platform is fixedly connected with the quick switching connector 2, one side of the longitudinal moving platform, which is far away from the quick switching connector 2, is fixedly provided with a first hydraulic motor, the first hydraulic motor is fixedly connected with a first lead screw, one end of the first lead screw is fixedly connected with the first hydraulic motor through a first coupler, the other end of the first lead screw is fixedly connected with the transverse moving device 4 through a first bearing seat, and the cutter rotating device 7 is fixedly connected with the first lead screw through a first moving frame; the longitudinal motion of diamond chain saw 8 is realized through the rotation of first hydraulic motor drive first lead screw, one side of first lead screw is provided with corresponding guide roller, first lead screw is through first shaft coupling and first hydraulic motor output shaft chain saw, the both ends of first lead screw set up the support bearing frame, first lead screw stroke extreme position sets up spacing inductor, first lead screw outside sets up the organ safety cover, prevent that the dregs from carrying out the moving part in the course of the work, guarantee equipment life, the steel construction back of longitudinal movement platform sets up hydraulic damper, can effectively cushion the impact load and the vibration of equipment work progress.
The specific cutter rotating device 7 comprises a rotating workbench, one side of the rotating workbench is fixedly connected with a first moving frame on a longitudinal moving platform through a bolt, the other side of the rotating workbench is fixedly connected with a transverse moving device 4, a rotating hydraulic motor is arranged in the rotating workbench, the rotating hydraulic motor is rotatably connected with the rotating workbench through a turbine and a worm, the hydraulic motor drives a worm turbine mechanism to move to realize that an upper workbench surface rotates, and the cutting direction of the diamond chain saw 8 is changed.
The transverse moving device 4 comprises a transverse moving platform, one side of the transverse moving platform is connected with the rotary worktable table surface bolt chain saw, the other side of the beam moving platform is fixedly provided with a second hydraulic motor, the second hydraulic motor is fixedly connected with a second lead screw, one end of a second lead screw is fixedly connected with the second hydraulic motor through a second coupler, the other end of the second lead screw is fixedly connected with the transverse moving platform through a second bearing seat, and the propelling cutting device 6 is fixedly connected with the second lead screw through a second moving frame; the second hydraulic motor drives the second lead screw to rotate to achieve transverse movement of the diamond chain saw 8, the second lead screw is connected with an output shaft of the second hydraulic motor through a second coupler, and supporting bearing seats are arranged at two ends of the second lead screw.
The specific propulsion cutting device 6 comprises a propulsion cutting platform, one side of the propulsion cutting platform is fixedly connected with a moving frame of the transverse moving device 4 through a bolt, the other side of the propulsion cutting platform is provided with the diamond chain saw 8, a hydraulic cylinder is fixedly arranged in the propulsion cutting platform, the hydraulic cylinder is fixedly connected with a telescopic rod, one end, far away from a third hydraulic pressure, of the telescopic rod is fixedly connected with a third hydraulic motor, and the third hydraulic motor is rotatably connected with the diamond chain saw 8; impel the tunnel section with diamond chain saw 8 through the pneumatic cylinder, the optical axis direction, pneumatic cylinder and optical axis outside set up scalable metal protection casing, prevent that cutting process dregs from falling down and damaging the moving part, it sets up a plurality of elasticity auxiliary stay gyro wheels promptly to impel cutting platform's front end on the casing of metal protection casing, the during operation digs the machine and walks to the tunnel section of supporting roller conflict, it stops to dig the machine, the pneumatic cylinder drives diamond chain saw 8 and impels the cutting forward, can effectively adapt to the tunnel section of unevenness, guarantee diamond chain saw 8 cutting process's stability.
The bottom of the excavator is provided with a slag discharging device, the slag discharging device comprises a star wheel type slag scraping device, a telescopic hydraulic cylinder and a feeding belt conveyor, crushed slag is conveyed to a slag car behind the excavator in a centralized mode through the slag discharging device, and the crushed slag is conveyed out of the tunnel through the slag car. The star wheel type slag scraping device is driven by a low-speed large-torque hydraulic motor, and a hydraulic pump station of the excavator provides power to collect materials. The telescopic hydraulic cylinder can telescopically adjust the inclination angle of the shovel plate and is reasonably configured according to the conveying speed and the conveying capacity of the feeding belt conveyor.
The fast conversion connector 2, the automatic control principle technology, etc. referred to in this application are all prior art, and therefore, they are not specifically described in this application.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (5)
1. A soft rock tunnel boring machine, comprising: excavator (1), the rigid coupling has fast conversion connector (2) on excavator (1), one side that excavator (1) were kept away from in fast conversion connector (2) can be dismantled and be connected with cutting device and breaker.
2. A soft rock tunnel boring machine according to claim 1, wherein: the cutting device is a cutting chain saw (3), the cutting chain saw (3) comprises a transverse moving device (4), a longitudinal moving device (5), a pushing cutting device (6) and a cutter rotating device (7), one side of the longitudinal moving device (5) is detachably connected with the quick switching connector (2), the cutter rotating device (7) is fixedly arranged on one side, away from the quick switching connector (2), of the longitudinal moving device (5), the transverse moving device (4) is fixedly arranged on one side, away from the longitudinal moving device (5), of the cutter rotating device (7), the pushing cutting device (6) is fixedly arranged on one side, away from the cutter rotating device (7), of the transverse moving device (4), and a diamond chain saw (8) is fixedly arranged on the pushing cutting device (6).
3. A soft rock tunnel boring machine according to claim 1, wherein: the crushing device is a milling digging head (9), the milling digging head (9) comprises a machine base (10), a fourth hydraulic motor (11) and a cutter head (12), the machine base (10) is fixedly connected with the quick-change connector (2), the fourth hydraulic motor (11) is fixedly arranged on one side, away from the quick-change connector (2), of the machine base (10), and the fourth hydraulic motor (11) is rotatably connected with the cutter head (12).
4. A soft rock tunnel boring machine according to claim 1, wherein: the crushing device is an impact crushing hammer (13), the impact crushing hammer (13) comprises a cylinder body (14) and a drill rod (15), one side of the cylinder body (14) is fixedly connected with the quick-switching connector (2), the other side of the cylinder body (14) is connected with a piston rod (16), and the end part, far away from the cylinder body (14), of the piston rod (16) is fixedly connected with the drill rod (15).
5. A construction method using the soft rock tunnel boring machine of claims 1 to 4, characterized by comprising the steps of:
step A: installing a quick-change connector on the excavator, and installing a cutting device on the quick-change connector;
and B: controlling a cutting device to cut the tunnel face through an excavator, and cutting the tunnel face into a plurality of block faces;
and C: disassembling the cutting chain saw and installing the crushing device on the quick switching connector;
step D: controlling a crushing device to crush each block surface through an excavator;
step E: and the crushed dregs are conveyed out of the tunnel through a slag discharging device at the bottom of the excavator and a belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826005.5A CN112145192A (en) | 2020-08-17 | 2020-08-17 | Soft rock tunnel boring machine and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826005.5A CN112145192A (en) | 2020-08-17 | 2020-08-17 | Soft rock tunnel boring machine and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145192A true CN112145192A (en) | 2020-12-29 |
Family
ID=73887991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010826005.5A Pending CN112145192A (en) | 2020-08-17 | 2020-08-17 | Soft rock tunnel boring machine and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145192A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796751A (en) * | 2021-02-22 | 2021-05-14 | 三一重型装备有限公司 | Heading machine suitable for small-section tunnel |
| CN113246314A (en) * | 2021-07-02 | 2021-08-13 | 中铁工程服务有限公司 | Chain saw cutting machine and cutting method and cutting device thereof |
| CN113338976A (en) * | 2021-06-16 | 2021-09-03 | 中铁工程服务有限公司 | Chain saw cutting machine |
| CN114109430A (en) * | 2021-11-30 | 2022-03-01 | 中国矿业大学 | Dual-purpose heading machine for cutting and cutting hard rock |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883329A (en) * | 2014-03-31 | 2014-06-25 | 重庆南桐矿业有限责任公司 | Excavation construction method for mine hard rock roadway |
| CN105952460A (en) * | 2016-05-24 | 2016-09-21 | 中车建设工程有限公司 | Non-blasting construction method of hard-rock tunnel in city |
| CN108457665A (en) * | 2017-09-08 | 2018-08-28 | 襄阳忠良工程机械有限责任公司 | Milling digs formula and tunnels loading machine |
| CN208168884U (en) * | 2018-04-04 | 2018-11-30 | 中铁十二局集团有限公司 | A kind of constructing tunnel mole |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN111520155A (en) * | 2020-04-28 | 2020-08-11 | 陕西煤业化工技术研究院有限责任公司 | Multifunctional roadway repairing machine and construction method thereof |
-
2020
- 2020-08-17 CN CN202010826005.5A patent/CN112145192A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883329A (en) * | 2014-03-31 | 2014-06-25 | 重庆南桐矿业有限责任公司 | Excavation construction method for mine hard rock roadway |
| CN105952460A (en) * | 2016-05-24 | 2016-09-21 | 中车建设工程有限公司 | Non-blasting construction method of hard-rock tunnel in city |
| CN108457665A (en) * | 2017-09-08 | 2018-08-28 | 襄阳忠良工程机械有限责任公司 | Milling digs formula and tunnels loading machine |
| CN208168884U (en) * | 2018-04-04 | 2018-11-30 | 中铁十二局集团有限公司 | A kind of constructing tunnel mole |
| CN111236959A (en) * | 2020-03-20 | 2020-06-05 | 中铁工程装备集团有限公司 | Chain saw mesh cutting tunneling machine and construction method thereof |
| CN111520155A (en) * | 2020-04-28 | 2020-08-11 | 陕西煤业化工技术研究院有限责任公司 | Multifunctional roadway repairing machine and construction method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796751A (en) * | 2021-02-22 | 2021-05-14 | 三一重型装备有限公司 | Heading machine suitable for small-section tunnel |
| CN113338976A (en) * | 2021-06-16 | 2021-09-03 | 中铁工程服务有限公司 | Chain saw cutting machine |
| CN113338976B (en) * | 2021-06-16 | 2024-02-06 | 中铁工程服务有限公司 | Chain saw cutting machine |
| CN113246314A (en) * | 2021-07-02 | 2021-08-13 | 中铁工程服务有限公司 | Chain saw cutting machine and cutting method and cutting device thereof |
| CN114109430A (en) * | 2021-11-30 | 2022-03-01 | 中国矿业大学 | Dual-purpose heading machine for cutting and cutting hard rock |
| CN114109430B (en) * | 2021-11-30 | 2024-05-03 | 中国矿业大学 | Hard rock cutting dual-purpose entry driving machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112145192A (en) | Soft rock tunnel boring machine and construction method thereof | |
| CN111236959B (en) | Chain saw mesh cutting tunneling machine and construction method thereof | |
| US5333937A (en) | Excavation machine having combined impact hammers and static ripper pick | |
| CN110242300B (en) | Splitting mechanism and tunneling equipment | |
| CN110821510A (en) | High-pressure water jet edge cutter and combined rock breaking and trapped-freeing TBM cutter head and method thereof | |
| AU2020277229B2 (en) | Eccentric hob type tunneling machine capable of breaking rock according to predetermined path without affecting supporting work | |
| RU2704407C2 (en) | Tunnelling machine for working with hard rocks | |
| CN111520155B (en) | Multifunctional roadway repairing machine and construction method thereof | |
| CN112412490A (en) | Hard rock tunneling machine | |
| CN109505619B (en) | Plain type hard rock TBM | |
| CN103195421B (en) | Reciprocating impact tunnel boring machine | |
| CN105626082B (en) | A kind of construction of underground tunnel equipment | |
| CN111997643A (en) | Multi-hammer type tunnel boring machine, control method and application | |
| US4080000A (en) | Tunnelling machine | |
| US3998493A (en) | Combined milling and impact apparatus for tunneling | |
| CN214366074U (en) | Soft rock tunnel boring machine | |
| CN214366073U (en) | Soft rock tunnel boring machine | |
| CN211342922U (en) | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head | |
| CN209942828U (en) | Universal drilling machine for circular seam | |
| KR20190002020A (en) | horizontal boring apparatus for excavating soft rock ground | |
| CN113216951B (en) | Non-explosive mechanical mining method for deep hard rock mine | |
| CN210003277U (en) | tunnel working device with jumbolter at tail | |
| CN212359778U (en) | Cantilever swing type hard rock tunnel boring machine | |
| CN212359774U (en) | Intelligent full-hydraulic drilling, anchoring and protecting three-arm integrated machine for coal mine | |
| EP0080802A1 (en) | A machine for cutting a trench in rock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201229 |
|
| RJ01 | Rejection of invention patent application after publication |