CN115125939B - Prefabricated ultra-deep pile construction equipment and construction method for soft soil foundation - Google Patents
Prefabricated ultra-deep pile construction equipment and construction method for soft soil foundation Download PDFInfo
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- CN115125939B CN115125939B CN202210928569.9A CN202210928569A CN115125939B CN 115125939 B CN115125939 B CN 115125939B CN 202210928569 A CN202210928569 A CN 202210928569A CN 115125939 B CN115125939 B CN 115125939B
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 title claims abstract description 40
- 239000002893 slag Substances 0.000 claims abstract description 70
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 238000009417 prefabrication Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/08—Removing obstacles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a construction device and a construction method of a prefabricated ultra-deep pile for a soft soil foundation, wherein the construction device comprises a pile body, a drilling dredging unit, a slag producing and discharging unit, a power unit and a slag removing unit, wherein the drilling dredging unit is arranged at the lower end of the pile body and is used for drilling the soft soil foundation, crushing an underground rock-soil body and filtering and pumping out waste sludge; the slag producing and discharging unit is arranged on the pile body and is used for producing and discharging mud slag; the power unit is connected to the upper end of the pile body and is used for providing rotary torque power to drive the pile body to integrally rotate and drill; the slag removing unit is connected with the power unit and is used for pumping and discharging the mud slag entering the pile body to the ground, the pile body spiral structure can be used for rapidly drilling and piling, mud slag generated in the piling process is pumped and discharged in real time through the pile body hollow pipe, the vertical angle of piling is accurately determined and automatically corrected, the vertical verticality of the pile body is guaranteed, and the pile body spiral structure has the characteristics of prefabrication, rapid construction, accurate positioning and the like.
Description
Technical Field
The invention belongs to the technical field of ultra-deep pile construction, and particularly relates to prefabricated ultra-deep pile construction equipment for a soft soil foundation and a construction method.
Background
The sea area is low in original position, the surface part is soft plastic-plastic clay, the thickness is generally less than 2 meters, the upper part is sea area silt, the property is poor, the water content of a soft soil layer is high, the pore ratio is large, and the characteristics of high compressibility, high sensitivity and the like are achieved. The bridge construction in soft soil areas generally adopts bored piles, and the bored piles are piles which are made by forming pile holes in foundation soil by means of mechanical boring, steel pipe soil squeezing or manual excavation and the like on the engineering site, and placing reinforcement cages and pouring concrete in the pile holes. The bored pile generally has the following problems in the construction process: firstly, because concrete is poured in muddy water, the quality of the concrete is difficult to control; secondly, collapse holes and shrinkage can easily occur; thirdly, the pile hole is easy to deflect; fourth, it takes time and labor, the hole forming speed is slow, and the sludge pollutes the environment.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a construction device and a construction method of a prefabricated ultra-deep pile for a soft soil foundation, which are used for solving the problems in the prior art.
The construction equipment of the prefabricated ultra-deep pile for the soft soil foundation comprises a pile body drilling dredging unit, a slag producing and discharging unit, a power unit and a slag removing unit,
the drilling dredging unit is arranged at the lower end of the pile body and is used for drilling a soft soil foundation, crushing an underground rock-soil body and filtering and pumping out waste mud slag;
the slag producing and discharging unit is arranged on the pile body and is used for producing and discharging mud slag;
the power unit is connected to the upper end of the pile body and is used for providing rotary torque power to drive the pile body to integrally rotate and drill;
and the slag removing unit is connected with the power unit and is used for pumping and discharging the mud slag entering the pile body to the ground.
In accordance with the aspects and any possible implementation manner described above, there is further provided an implementation manner, the drilling dredging unit includes a drill bit, an angle adjustment module and a filter valve, wherein the drill bit is located at a foremost end of the pile body, the angle adjustment module is disposed inside the drill bit, and the filter valve is disposed on a surface of the drill bit.
In the aspect and any possible implementation manner, there is further provided an implementation manner, the pile body is a cylindrical barrel of a hollow pipe, the slag producing and discharging unit is a wing plate, and the wing plate is arranged on the outer surface of the cylindrical barrel.
In the aspects and any possible implementation manner, there is further provided an implementation manner, the power unit is arranged on a part above the ground surface of the upper part of the pile body, and alternating current is adopted to drive to apply torque to the whole pile body to drive the pile body to rotate.
In the aspect and any possible implementation manner, there is further provided an implementation manner, a vacuum pump is arranged inside the slag removing unit and connected with the hollow pipe of the pile body, and a mud slag guide pipe is led out from the upper part of the slag removing unit.
In aspects and any one of the possible implementations described above, there is further provided an implementation, the angle adjustment module including a fiber optic gyroscope sensor.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the filter valve is a one-way filter valve, and a pore size of the one-way filter valve is less than or equal to 10mm.
In the aspect and any possible implementation manner, there is further provided an implementation manner, where the pile body is one or multiple sections, and where the pile body is multiple sections, the construction equipment further includes a linking unit, where the linking unit is configured to connect the multiple sections of the pile body into a whole.
In the aspect and any possible implementation manner as described above, there is further provided an implementation manner, where the linking unit includes a pre-spiral body and a post-spiral body, and the pre-spiral body is connected to the front end of the previous pile body; the rear screw body is connected with the rear end of the rear pile body; the front screw body and the rear screw body are connected through nested threads.
The invention also provides a construction method of the construction equipment for the prefabricated ultra-deep pile for the soft soil foundation, which is characterized by comprising the following steps of:
s1, selecting a drilling and piling position and preparing for piling;
s2, connecting a drill bit, a first section of pile body, a power unit and a slag removal unit;
s3, starting the power unit and the slag removal unit, vertically and downwards rotating to drill and discharge sludge;
s4, adding a second section and a subsequent multi-section pile body;
s5, after spiral drilling to a designated position, removing the power unit and the slag removing unit, and pouring concrete into the hollow pipe of the pile body;
s6, dismantling the diversion pipe, taking the drill bit and the pile body as ultra-deep piles, and completing construction.
The beneficial effects of the invention are that
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to prefabricated ultra-deep pile construction equipment for a soft soil foundation, which comprises a pile body, a drilling dredging unit, a slag producing and discharging unit, a power unit and a slag removing unit, wherein the drilling dredging unit is arranged at the lower end of the pile body and is used for drilling the soft soil foundation, crushing an underground rock-soil body and filtering and pumping out waste mud slag; the slag producing and discharging unit is arranged on the pile body and is used for producing and discharging mud slag; the power unit is connected to the upper end of the pile body and is used for providing rotary torque power to drive the pile body to integrally rotate and drill; the slag removing unit is connected with the power unit and is used for pumping and discharging the mud slag entering the pile body to the ground, the pile body spiral structure can be used for rapidly drilling and piling, mud slag generated in the piling process is pumped and discharged in real time through the pile body hollow pipe, the vertical angle of piling is accurately determined and automatically corrected, the vertical verticality of the pile body is guaranteed, and the pile body spiral structure has the characteristics of prefabrication, rapid construction, accurate positioning and the like.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic view of the interior of the drill bit of the present invention;
FIG. 3 is a cross-sectional view of a shaft of the present invention;
fig. 4 is a flow chart of the construction method of the present invention.
Wherein, in the figure:
1. drilling dredging unit 2, steel hollow cylinder wall 3, spiral wing plate, 4, power unit 5, slag removing unit 6, honeycomb duct 7, soft soil foundation 8, drill bit 9, one-way filter valve 10, angle adjusting device 11, fiber optic gyroscope sensor 12, leading screw, 13, rear screw.
Detailed Description
For a better understanding of the present invention, the present disclosure includes, but is not limited to, the following detailed description, and similar techniques and methods should be considered as falling within the scope of the present protection. In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
It should be understood that the described embodiments of the invention are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The system of the invention is not limited to specific operating hardware and programming languages, and can be written in any language, so that other working modes are not repeated.
As shown in fig. 1, a construction apparatus for a prefabricated ultra-deep pile for a soft soil foundation comprises a pile body, a drilling dredging unit 1, a slag-producing and discharging unit, a power unit and a slag-removing unit,
the drilling dredging unit is arranged at the lower end of the pile body and is used for drilling a soft soil foundation, crushing an underground rock-soil body and filtering and pumping out waste mud slag;
the slag producing and discharging unit is arranged on the pile body and is used for producing and discharging mud slag;
the power unit is connected to the upper end of the pile body and is used for providing rotary torque power to drive the pile body to integrally rotate and drill;
and the slag removing unit is connected with the power unit and is used for pumping and discharging the mud slag entering the pile body to the ground.
The drilling dredging unit 1 is positioned at the forefront end of the whole pile body and is connected with the pile body, and comprises a drill bit 8, an angle adjusting device 10 and a filter valve with a mud residue filtering function, wherein the filter valve is realized by adopting a one-way filter valve 9.
As shown in fig. 2, the drill bit 8 is made of high-strength special steel, the whole shape of the drill bit is inverted triangle cone, the outside of the drill bit is provided with a spiral structure, under the action of gravity and rotation torque of the pile body at the upper part and the self, the underground rock-soil body is crushed to drive the pile body to integrally rotate downwards for drilling, and the high-strength special steel drill bit 8 is hollow and internally provided with an angle adjusting device 10 and a one-way filter valve 9.
The vertical angle self-adjusting device 10 is positioned in the hollow inner space of the high-strength special steel drill bit 8, and the outer shell of the vertical angle self-adjusting device is firmly welded and connected with the inner part of the high-strength special steel drill bit 8, so that the optical fiber gyroscope sensor 11 arranged in the vertical angle self-adjusting device is protected from being damaged by pressure and impact. The optical fiber gyro sensor 11 operates on the principle that the direction in which the rotation axis of a rotating object is directed is not changed when it is not affected by an external force. Therefore, the fiber-optic gyroscope sensor 11 transmits pile body angle information in real time, so that piling angles can be adjusted in time, and the pile body is ensured to be completely vertical.
The one-way filter valve 9 has the function of filtering slurry slag, is positioned in the cavity on the surface of the high-strength special steel drill bit 8, only allows the slurry slag outside the drill bit 8 to flow into the drill bit 8 in one way, and has the cavity diameter of 10mm. The one-way filter valve 9 is arranged to reduce the accumulation of too much mud slag generated by the drill bit 8 in the rotary drilling process, so that the friction force of the drill bit is increased, the drill bit 8 and the threaded wing plates on the surface of the pile body are used for discharging large mud slag in an outward spiral manner, and small-particle mud slag and liquid mud still remain in a drilled hole, so that the mud is discharged through seepage of the one-way filter valve 9.
The pile body is internally provided with a cylindrical barrel 2 of a hollow pipe, the slag producing and discharging unit is a spiral wing plate 3, the spiral wing plate 3 is arranged on the outer surface of the cylindrical barrel, and the cylindrical barrel is made of steel materials.
The steel hollow cylinder 2 is a main structure of the pile body, the thickness of the cylindrical hollow cylinder wall is 20mm, and the strength meets the requirements of the pressure extrusion of the surrounding soft soil foundation soil and the torque born by the whole pile body without deformation. The spiral wing plate 3 is positioned on the surface of the steel hollow cylinder wall 2, the steel hollow cylinder wall 2 and the spiral wing plate are directly poured into an integral structure in the prefabrication process, and the spiral wing plate 3 discharges massive sludge outside a drilled hole in the pile body rotating and downward drilling process.
Preferably, as shown in fig. 3, in the present invention, the pile body is one or more sections, and when the pile body is multiple sections, the construction equipment further includes a linking unit, configured to connect the multiple sections of pile bodies into a whole. The linking unit comprises a pre-screw 12 and a post-screw 13. The front screw 12 is connected with the front end of the front section of pile body, the inner diameter of the front screw is larger than the outer diameter of the whole pile body, the inner surface of the front screw is provided with an internal thread structure, the rear screw 13 is connected with the rear end of the rear section of pile body, the outer diameter of the rear screw is equal to the inner diameter of the front screw 12, the outer surface of the rear screw is provided with an external thread structure, the front screw 12 and the rear screw 13 are tightly connected into a whole through nested threads, thereby connecting the adjacent front section of pile body and the rear section of pile body together, a plurality of linking units are used, and the plurality of sections of pile bodies are linked together in a linking mode so as to meet foundation construction requirements of different depths.
Preferably, the lower part of the power unit 4 is connected with the pile body, is positioned at the upper part of the pile body and above the ground surface, the power unit 4 is connected with a post-pile spiral body through a spiral buckle, and applies torque to the whole pile body through electric driving to drive the pile body to rotate, and the electric power requirement is industrial power 380V alternating current.
Preferably, the lower part of the slag removing unit 5 is connected with the power unit 4, is positioned at the uppermost part of the pile body, is internally provided with a vacuum pump and is connected with a hollow pipe of the pile body into a whole, the upper part is led out of a mud slag guide pipe 6, mud slag which seeps into the drill bit 8 through the unidirectional filter valve 9 at the bottom of the drill bit 8 is pumped to the uppermost part of the pile body through the hollow pipe of the pile body and is discharged to a mud pit outside construction equipment through the guide pipe 6.
Preferably, the one-way filter valve arranged in the drilling dredging unit and the vacuum pump of the slag removing unit are linked to pump out the mud slag generated by the soft soil foundation (mainly mucky soil) in the drilling process, and the mud slag is too much due to water injection in the drilling process of the soft soil foundation, and the mud slag particles are smaller and can be pumped out.
Preferably, the exterior screw wing plate 3 of the slag removal unit 5 of the present invention is made of steel, and is suitable for soft soil foundations, because the soft soil foundations (mucky soil) are free of hard particles (rock blocks, etc.), do not harm the screw wing plate 3, and do not hinder the drilling speed.
As shown in fig. 4, the present invention further provides a construction method, which is implemented by using the construction equipment of the present invention, and includes the following steps:
(1) Pre-preparing a high-strength special steel drill bit, a steel hollow cylinder wall and a spiral wing plate;
(2) Selecting a drilling and piling position and preparing power and water for piling;
(3) Connecting a high-strength special steel drill bit, a first section of pile body, a power unit and a slag removal unit;
(4) Starting a power unit and a slag removal unit, vertically and downwards rotating to drill and discharge sludge;
(5) Adding a second section and a subsequent multi-section pile body;
(6) After spiral drilling to a designated position, removing the power unit and the slag removal unit at the upper part of the pile body, and pouring high-grade quick-setting concrete into the hollow pipe of the pile body;
(7) And (5) dismantling the diversion pipe 6, taking the rest drilling bit and the spiral pile body as ultra-deep piles, and completing construction.
According to the method, after piling is finished, the whole pile body is not pulled out, and concrete is directly poured into the hollow pipe, so that the phenomenon that a soft soil foundation is easy to collapse due to pulling out of the pile body is prevented.
The invention provides a prefabricated ultra-deep pile device for a soft soil foundation and a construction method thereof, aiming at the problems that the quality of concrete for the bored pile construction in the soft soil area is difficult to control, the collapse and the shrinkage of the pile are easy to occur, the pile hole is easy to deviate, the construction is slow, the environment is polluted by sludge and the like. The pile body spiral structure can be used for fast drilling and piling, mud slag generated in the piling process can be pumped and discharged in real time through the pile body hollow pipe, the vertical angle of the pile can be accurately determined and automatically corrected, the vertical and vertical direction of the pile body can be guaranteed, and the pile body spiral structure has the characteristics of prefabrication, fast construction, accurate positioning and the like.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (7)
1. The prefabricated ultra-deep pile construction equipment for the soft soil foundation is characterized by comprising a pile body, a drilling dredging unit, a slag producing and discharging unit, a power unit and a slag removing unit, wherein the drilling dredging unit is arranged at the lower end of the pile body and is used for drilling the soft soil foundation, crushing underground rock and soil bodies and filtering and removing waste mud slag generated by the drilling dredging unit, the prefabricated ultra-deep pile construction equipment comprises a drill bit, an angle adjusting module and a filter valve, the drill bit is positioned at the forefront end of the pile body, the angle adjusting module is arranged in the drill bit, and the filter valve is arranged on the surface of the drill bit;
the slag producing and discharging unit is arranged on the pile body and used for producing and discharging mud slag, a cylindrical barrel of a hollow pipe is arranged in the pile body, the slag producing and discharging unit is a spiral wing plate, and the spiral wing plate is arranged on the outer surface of the cylindrical barrel;
the power unit is connected to the upper end of the pile body and is used for providing rotary torque power to drive the pile body to integrally rotate and drill;
the slag removing unit is connected with the power unit and is used for pumping and discharging the mud slag entering the pile body to the ground, the slag removing unit is positioned at the uppermost part of the pile body, a vacuum pump is arranged in the slag removing unit and is connected with the hollow pipe of the pile body into a whole, a mud slag guide pipe is led out from the upper part of the slag removing unit, the bottom of the drill bit is permeated into the drill bit through the filter valve, and the mud slag inside the drill bit is pumped to the uppermost part of the pile body through the hollow pipe of the pile body and is discharged to a mud pool outside the construction equipment through the guide pipe.
2. The apparatus of claim 1, wherein the power unit is disposed above the upper surface of the pile body, and the ac power is used to apply torque to the pile body to drive the pile body to rotate.
3. The apparatus of claim 1, wherein the angle adjustment module comprises a fiber optic gyroscope sensor.
4. The apparatus of claim 1, wherein the filter valve is a one-way filter valve having a pore diameter of 10mm or less.
5. The apparatus for constructing a prefabricated ultra-deep pile for a soft soil foundation according to claim 1, wherein the pile body is one or more segments, and when the pile body is a plurality of segments, the apparatus further comprises a linking unit for connecting the plurality of segments of the pile body into one body.
6. The apparatus for constructing a pre-formed ultra-deep pile for a soft soil foundation according to claim 5, wherein the linking unit comprises a pre-screw body and a post-screw body, the pre-screw body being connected to a front end of a previous pile body; the rear screw body is connected with the rear end of the rear pile body; the front screw body and the rear screw body are connected through nested threads.
7. A construction method of a construction apparatus for a prefabricated ultra-deep pile for a soft soil foundation, characterized in that the construction method is implemented by using the construction apparatus according to any one of claims 1 to 6, comprising the steps of: s1, selecting a drilling and piling position and preparing for piling;
s2, connecting a drill bit, a first section of pile body, a power unit and a slag removal unit;
s3, starting the power unit and the slag removal unit, vertically and downwards rotating to drill and discharge sludge;
s4, adding a second section and a subsequent multi-section pile body;
s5, after spiral drilling to a designated position, removing the power unit and the slag removing unit, and pouring concrete into the hollow pipe of the pile body;
s6, dismantling the diversion pipe, taking the drill bit and the pile body as ultra-deep piles, and completing construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210928569.9A CN115125939B (en) | 2022-08-03 | 2022-08-03 | Prefabricated ultra-deep pile construction equipment and construction method for soft soil foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210928569.9A CN115125939B (en) | 2022-08-03 | 2022-08-03 | Prefabricated ultra-deep pile construction equipment and construction method for soft soil foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115125939A CN115125939A (en) | 2022-09-30 |
| CN115125939B true CN115125939B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210928569.9A Active CN115125939B (en) | 2022-08-03 | 2022-08-03 | Prefabricated ultra-deep pile construction equipment and construction method for soft soil foundation |
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| Country | Link |
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| CN (1) | CN115125939B (en) |
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| JP2000144728A (en) * | 1998-09-01 | 2000-05-26 | Nkk Corp | Execution method of screw pile and screw pile used for it |
| JP2004270440A (en) * | 2003-02-17 | 2004-09-30 | Mitani Sekisan Co Ltd | Construction method for foundation pile, and prefabricated pile |
| CN104947660A (en) * | 2015-07-03 | 2015-09-30 | 陕西桩鑫建设工程有限公司 | Reverse screw spike pile and construction method thereof |
| CN107012857A (en) * | 2017-05-12 | 2017-08-04 | 上海建工二建集团有限公司 | One kind is prefabricated with the tapered screw thread combination pile tube in hole and its construction method |
| CN113107478A (en) * | 2021-03-30 | 2021-07-13 | 廊坊聚力勘探科技有限公司 | Shallow fluid sampling device and sampling method |
| CN114396234A (en) * | 2021-12-31 | 2022-04-26 | 湖南铁甲智能技术有限公司 | Bottom expanding drill bit and construction method based on same |
-
2022
- 2022-08-03 CN CN202210928569.9A patent/CN115125939B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144728A (en) * | 1998-09-01 | 2000-05-26 | Nkk Corp | Execution method of screw pile and screw pile used for it |
| JP2004270440A (en) * | 2003-02-17 | 2004-09-30 | Mitani Sekisan Co Ltd | Construction method for foundation pile, and prefabricated pile |
| CN104947660A (en) * | 2015-07-03 | 2015-09-30 | 陕西桩鑫建设工程有限公司 | Reverse screw spike pile and construction method thereof |
| CN107012857A (en) * | 2017-05-12 | 2017-08-04 | 上海建工二建集团有限公司 | One kind is prefabricated with the tapered screw thread combination pile tube in hole and its construction method |
| CN113107478A (en) * | 2021-03-30 | 2021-07-13 | 廊坊聚力勘探科技有限公司 | Shallow fluid sampling device and sampling method |
| CN114396234A (en) * | 2021-12-31 | 2022-04-26 | 湖南铁甲智能技术有限公司 | Bottom expanding drill bit and construction method based on same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115125939A (en) | 2022-09-30 |
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