CN112376562A - Prestressed pipe pile construction device - Google Patents
Prestressed pipe pile construction device Download PDFInfo
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- CN112376562A CN112376562A CN202011067277.8A CN202011067277A CN112376562A CN 112376562 A CN112376562 A CN 112376562A CN 202011067277 A CN202011067277 A CN 202011067277A CN 112376562 A CN112376562 A CN 112376562A
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- fixedly connected
- pipe pile
- pile body
- sliding
- construction device
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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
- E02D7/20—Placing by pressure or pulling power
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- 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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- 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
- E02D5/58—Prestressed concrete piles
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the field of prestressed pipe piles, and particularly relates to a prestressed pipe pile construction device which comprises a supporting mechanism fixed on a target ground, wherein a connecting bottom plate is fixedly connected to the surface of the upper end of the supporting mechanism, a sliding base is fixedly connected to the surface of the upper end of the connecting bottom plate, a lifting mechanism is slidably connected to the upper end of the sliding base, an extrusion block is fixedly connected to the bottom surface of the lower end of the middle part of the lifting mechanism, clamping pieces are fixedly connected to the bottom surfaces of the lower ends of the left side and the right side of the lifting mechanism, and a pipe pile body is fixedly connected to the middle part of each clamping. Through setting up the holder for the holder removes to the middle part along with the rotation of second threaded rod under the servo motor's of the left and right sides drive, realizes the fixed action to middle part tubular pile body, prevents that the tubular pile body from deviating from vertical direction under the extrusion of extrusion piece, produces the slope, influences subsequent supporting role.
Description
Technical Field
The invention belongs to the field of prestressed pipe piles, and particularly relates to a prestressed pipe pile construction device.
Background
The pipe pile is divided into a prestressed concrete pipe pile and a prestressed high-strength concrete pipe pile according to the concrete strength grade or effective pre-compressive stress, the code of the prestressed concrete pipe pile is PC, the code of the prestressed high-strength concrete pipe pile is PHC, the code of the thin-wall pipe pile is PTC, and the prestressed concrete pipe pile can be divided into a post-tensioning prestressed pipe pile and a pre-tensioning prestressed pipe pile.
The traditional prestressed pipe pile mainly comprises a hammering method, a static pressure method and the like during construction, the prestressed pipe pile is sunk underground, the traditional construction method is that the pipe pile is pressed into the ground by a static pressure method, and in the process of pressing the pipe pile into the ground, partial soil and gravels are pressed into the pipe pile through an opening at the lower end of the pipe pile due to the pressure of the pipe pile on the surrounding soil and gravels, so that the soil plug effect coefficient at the lower end of the pipe pile is low, the bearing capacity at the lower end of the pipe pile is reduced, and sinking or damage to the pipe pile can be caused in the subsequent construction process.
Therefore, we propose a prestressed pipe pile construction device to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and provides a prestressed pipe pile construction device.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a prestressed pipe pile construction equipment, is including fixing the subaerial supporting mechanism of target, fixedly connected with connecting bottom plate on the surface of supporting mechanism's the upper end, fixedly connected with sliding bottom on the surface of connecting bottom plate's the upper end, sliding bottom's upper end sliding connection has elevating system, fixedly connected with extrusion piece on the bottom surface of elevating system's middle part lower extreme, fixedly connected with holder on the lower extreme bottom surface of the left and right sides of elevating system, the middle part fixedly connected with tubular pile body of holder.
In the above prestressed pipe pile construction device, the support mechanism is composed of a base plate seat, a first hydraulic cylinder and an upper plate, the base plate seat is fixedly connected to the upper end surface of the target ground, a fixing groove is formed in the upper end surface of the base plate seat, the lower end bottom surface of the first hydraulic cylinder is fixedly connected to the upper end bottom surface of the fixing groove, the surface of the upper end of the first hydraulic cylinder is fixedly connected to the lower end bottom surface of the upper plate, a through groove is formed in the middle of the upper plate, and the lower end of the pipe pile body is connected to the inside of the through groove in a penetrating mode.
In the above prestressed pipe pile construction device, the lower end of the pipe pile body is connected to the middle of the connecting bottom plate through a through hole.
In foretell prestressing force tubular pile construction equipment, the fixed surface of the upper end of the left and right sides of connecting the bottom plate is connected on sliding base's lower extreme bottom surface, the spout has been seted up to sliding base's inside, the inside sliding connection of spout has elevating system, fixedly connected with spring buffer on the both ends wall about the spout inner wall, spring buffer's the outside offsets with elevating system's lower extreme side, sliding base's the upper end of the left and right sides on the surface perforation connection have first threaded rod, the lower extreme threaded connection of first threaded rod is on elevating system's upper end surface.
In foretell prestressing force tubular pile construction equipment, elevating system comprises slider, second hydraulic cylinder and backup pad, the lower extreme perforated connection of second hydraulic cylinder is on the upper end surface of slider, the upper end perforated connection of second hydraulic cylinder is on the upper end surface of backup pad, slider sliding connection is in the inside of spout, the lower extreme fixedly connected with pulley spare of slider, the lower extreme sliding connection of pulley spare is on the inner wall bottom surface of spout.
In foretell prestressing force tubular pile construction equipment, the outside of spring buffer supports with the outside surface of slider, the lower extreme threaded connection of first threaded rod is on the upper end surface of slider.
In foretell prestressing force tubular pile construction device, the holder comprises servo motor, second threaded rod and centre gripping tongs, servo motor's lower extreme bottom surface fixedly connected with mount, the upper end fixed surface of mount is connected on the lower extreme bottom surface of backup pad, on the left side fixed connection servo motor of second threaded rod, the upper end threaded connection of centre gripping tongs is at the middle part of second threaded rod, the right-hand member of second threaded rod rotates to be connected on the side of the left and right sides of extrusion piece, the inboard of centre gripping tongs offsets with the outside of tubular pile body.
In foretell prestressing force tubular pile construction device, the inside perforation of tubular pile body is connected with the connecting rod, the lower extreme fixedly connected with screw thread piece of connecting rod, screw thread piece threaded connection is at the lower extreme of tubular pile body, the lower extreme bottom surface fixedly connected with end piece of tubular pile body, screw thread piece threaded connection is on the inner wall of end piece, grout passageway has been seted up on the inner wall of end piece, the inside perforation of tubular pile body is connected with the slip casting pipe.
Compared with the prior art, this prestressed pipe pile construction device's advantage lies in:
1. according to the invention, the supporting mechanism is arranged, so that the first hydraulic cylinder drives the upper plate and the connecting bottom plate fixed on the upper plate to move upwards, when the second hydraulic cylinder drives the extrusion block downwards to press the tubular pile body into the ground, and finally the support plate is contacted and abutted with the sliding block, the second hydraulic cylinder stops working, namely the position of the upper end surface of the sliding block can be changed through the lifting of the first hydraulic cylinder, so that the preset burial depth of the tubular pile body is realized, and the clamping piece is arranged, so that the clamping piece moves towards the middle part along with the rotation of the second threaded rod under the driving of the servo motors at the left side and the right side, the fixing effect on the tubular pile body at the middle part is realized, and the tubular pile body is prevented from deviating from the vertical direction under the extrusion action of the extrusion block to generate inclination and.
2. The invention has the outstanding characteristics that: before squeezing the tubular pile body, connect the inside at the tubular pile body with the corresponding connecting rod perforation of tubular pile body length through external motor, make the lower extreme of screw thread piece connection at the connecting rod by together perforation connection in the inside of tubular pile body, and the threaded connection that the screw thread that sets up on the outer wall of screw thread piece and the tip piece inner wall corresponds, make the lower extreme of tubular pile body seal, in-process pushing down, soil and rubble can not get into confined tubular pile body lower extreme under the effect of pressure, make the soil plug effect coefficient of tubular pile body lower extreme big, thereby correspond the bearing capacity reinforcing that makes the tubular pile body lower extreme, and when this body pressure of tubular pile reaches predetermined degree of depth, through the slip casting pipe, inject the thick liquid to the bottom of tubular pile body, make the tubular pile body form wholly rather than the sandy soil of lower extreme, realize the outstanding fixed effect to the tubular pile.
Drawings
Fig. 1 is a schematic structural view of a prestressed pipe pile construction device provided by the invention;
fig. 2 is a side view of a prestressed pipe pile construction apparatus provided by the present invention;
fig. 3 is a schematic structural view of a clamping member of a prestressed pipe pile construction device provided by the present invention;
fig. 4 is a schematic structural view of a grouting pipe of a prestressed pipe pile construction device provided by the present invention;
fig. 5 is a schematic structural view of a sliding base of a prestressed pipe pile construction device provided by the present invention;
fig. 6 is a perspective view of a slide block of a prestressed pipe pile construction device provided by the present invention;
fig. 7 is a perspective view of a clamping hand of the prestressed pipe pile construction device provided by the invention.
In the figure, a supporting mechanism 1, a bottom plate seat 11, a first hydraulic oil cylinder 12, an upper plate 13, a fixing groove 14, a penetrating groove 15, a connecting bottom plate 2, a sliding base 3, a sliding chute 31, a spring buffer 32, a first threaded rod 33, a lifting mechanism 4, a sliding block 41, a second hydraulic oil cylinder 42, a supporting plate 43, a pulley 44, an extrusion block 5, a clamping piece 6, a servo motor 61, a second threaded rod 62, a clamping gripper 63, a fixing frame 64, a tubular pile body 7, a connecting rod 71, a thread block 72, a tip block 73, a grouting channel 74 and a grouting pipe 75.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1 to 7, a prestressed pipe pile construction device includes a support mechanism 1 fixed on a target ground, a connection base plate 2 is fixedly connected to a surface of an upper end of the support mechanism 1, the support mechanism 1 is composed of a base plate seat 11, a first hydraulic cylinder 12 and an upper plate 13, the type of the first hydraulic cylinder 12 is CD250, the number of the first hydraulic cylinder 12 is four, the first hydraulic cylinder 12 is respectively arranged on surfaces of upper ends of left and right sides of the base plate seat 11, the base plate seat 11 is fixedly connected to an upper end surface of the target ground, a fixing groove 14 is formed on an upper end surface of the base plate seat 11, a lower end bottom surface of the first hydraulic cylinder 12 is fixedly connected to an upper end bottom surface of the fixing groove 14, a surface of an upper end of the first hydraulic cylinder 12 is fixedly connected to a lower end bottom surface of the upper plate 13, a mounting groove is formed on a lower end surface of the upper, the middle part of the upper plate 13 is provided with a through groove 15, and the lower end of the tubular pile body 7 is connected inside the through groove 15 through a through hole.
The surface of the upper end of the connecting bottom plate 2 is fixedly connected with a sliding base 3, the surface of the upper end of the left side and the surface of the upper end of the right side of the connecting bottom plate 2 are fixedly connected on the bottom surface of the lower end of the sliding base 3, the inside of the sliding base 3 is provided with a sliding chute 31, the inside of the sliding chute 31 is slidably connected with an elevating mechanism 4, the wall surfaces of the left end and the right end of the inner wall of the sliding chute 31 are fixedly connected with spring buffer parts 32, the outer side of the spring buffer part 32 is abutted against the side surface of the lower end of the elevating mechanism 4, the surface of the upper end of the left side and the right side of the sliding base 3 is connected with a first threaded rod 33 in a perforation way, the lower end of the first threaded rod 33 is connected on the surface of the upper end of the elevating mechanism 4, the upper end of the, the model of the second hydraulic cylinder 42 is CD350, the number of the second hydraulic cylinders 42 is two, the second hydraulic cylinders 42 are respectively connected to the sliding bases 3 on the left side and the right side in a sliding manner, the upper end of the second hydraulic cylinder 42 is connected to the upper end surface of the supporting plate 43 in a penetrating manner, the sliding block 41 is connected to the inside of the sliding groove 31 in a sliding manner, the lower end of the sliding block 41 is fixedly connected with the pulley piece 44, the lower end of the pulley piece 44 is connected to the bottom surface of the inner wall of the sliding groove 31 in a sliding manner, the outer side of the spring buffer piece 32 is abutted to the outer side surface of the sliding block 41, the lower end of the first threaded rod 33 is connected to the upper end surface of the sliding.
The bottom surface of the lower end of the middle part of the lifting mechanism 4 is fixedly connected with an extrusion block 5, the bottom surface of the lower end of the extrusion block 5 is abutted against the upper end surface of the tubular pile body 7, the bottom surfaces of the lower ends of the left side and the right side of the lifting mechanism 4 are fixedly connected with a clamping piece 6, the clamping piece 6 consists of a servo motor 61, a second threaded rod 62 and a clamping hand grip 63, the type of the servo motor 61 is 180A1910, the bottom surface of the lower end of the servo motor 61 is fixedly connected with a fixing frame 64, the upper end surface of the fixing frame 64 is fixedly connected on the bottom surface of the lower end of the supporting plate 43, the left side of the second threaded rod 62 is fixedly connected on the servo motor 61, the upper end of the clamping hand grip 63 is in threaded connection with the middle part of the second threaded rod 62, the right end of the second threaded rod 62 is rotatably connected on the side, the inboard of centre gripping tongs 63 offsets with the outside of tubular pile body 7, the middle part fixedly connected with tubular pile body 7 of holder 6, the lower extreme fixedly connected with screw thread piece 72 of connecting rod 71, the upper end fixedly connected with toothed disc of connecting rod 71, screw thread piece 72 threaded connection is at the lower extreme of tubular pile body 7, the lower extreme bottom surface fixedly connected with end piece 73 of tubular pile body 7, screw thread piece 72 threaded connection is on the inner wall of end piece 73, grout passageway 74 has been seted up on the inner wall of end piece 73, the inside perforation connection of tubular pile body 7 has slip casting pipe 75, the lower extreme perforation connection of tubular pile body 7 is at the middle part of connecting bottom plate 2.
When the prestressed pipe pile construction device is used, the fixing and supporting effects on the whole device are realized through the supporting mechanism 1, and under the action of the first hydraulic oil cylinder 12, the first hydraulic oil cylinder 12 drives the upper plate 13 and the connecting bottom plate 2 fixed on the upper plate 13 to move upwards, so that when the second hydraulic oil cylinder 42 drives the extrusion block 5 downwards to press the pipe pile body 7 into the ground, and finally the supporting plate 43 is contacted and abutted with the sliding block 41, the second hydraulic oil cylinder 42 stops working, namely, the lifting of the first hydraulic oil cylinder 12 can be realized, so that the position of the upper end surface of the sliding block 41 is changed, the preset burial depth of the pipe pile body 7 is realized, the clamping piece 6 is driven by the servo motors 61 at the left side and the right side to move towards the middle part along with the rotation of the second threaded rod 62, the fixing effect on the pipe pile body 7 at the middle part is realized, and the pipe pile body 7 is prevented from deviating from the vertical direction under the extrusion, resulting in a tilt that affects subsequent support.
In the prestressed tubular pile construction device, before the tubular pile body 7 is pressed into the ground, the connecting rod 71 corresponding to the length of the tubular pile body 7 is connected inside the tubular pile body 7 in a perforation way through the external motor, the thread block 72 is connected at the lower end of the connecting rod 71 and is connected inside the tubular pile body 7 in a perforation way, the outer wall of the thread block 72 is connected with the thread corresponding to the thread arranged on the inner wall of the end block 73, so that the lower end of the tubular pile body 7 is closed, soil and gravels cannot enter the closed lower end of the tubular pile body 7 under the action of pressure in the process of pressing down, the soil plug effect coefficient at the lower end of the tubular pile body 7 is large, the bearing capacity at the lower end of the tubular pile body 7 is correspondingly enhanced, and when the tubular pile body 7 is pressed to a preset depth, slurry is injected to the bottom of the tubular pile body 7 through the grouting pipe 75, so that the slurry flows out of the end, so that the tubular pile body 7 and the sandy soil at the lower end thereof form a whole, and the excellent fixing effect on the tubular pile body 7 is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A prestressed pipe pile construction device comprises a supporting mechanism (1) fixed on a target ground, and is characterized in that a connecting bottom plate (2) is fixedly connected to the surface of the upper end of the supporting mechanism (1), a sliding base (3) is fixedly connected to the surface of the upper end of the connecting bottom plate (2), an elevating mechanism (4) is slidably connected to the upper end of the sliding base (3), an extrusion block (5) is fixedly connected to the bottom surface of the lower end of the middle part of the elevating mechanism (4), clamping pieces (6) are fixedly connected to the bottom surfaces of the lower ends of the left side and the right side of the elevating mechanism (4), a pipe pile body (7) is fixedly connected to the middle part of each clamping piece (6), the supporting mechanism (1) is composed of a bottom plate seat (11), a first hydraulic oil cylinder (12) and an upper plate (13), and the bottom plate seat (11) is fixedly connected to the surface, the pipe pile comprises a base plate seat (11), and is characterized in that a fixing groove (14) is formed in the upper end surface of the base plate seat (11), the lower end bottom surface of a first hydraulic oil cylinder (12) is fixedly connected to the upper end bottom surface of the fixing groove (14), the surface of the upper end of the first hydraulic oil cylinder (12) is fixedly connected to the lower end bottom surface of an upper plate (13), a through groove (15) is formed in the middle of the upper plate (13), and the lower end of a pipe pile body (7) is connected to the inside of the through groove (15) in a penetrating mode.
2. The pre-stressed pipe pile construction device according to claim 1, wherein the lower end of the pipe pile body (7) is connected to the middle of the connection bottom plate (2) through a hole.
3. The prestressed tubular pile construction device according to claim 1, wherein the upper ends of the left and right sides of the connection bottom plate (2) are fixedly connected to the bottom surface of the lower end of the sliding base (3), the sliding groove (31) is formed in the sliding base (3), the lifting mechanism (4) is slidably connected to the inside of the sliding groove (31), the spring buffer (32) is fixedly connected to the wall surfaces of the left and right ends of the inner wall of the sliding groove (31), the outer side of the spring buffer (32) abuts against the side surface of the lower end of the lifting mechanism (4), the upper ends of the left and right sides of the sliding base (3) are provided with the first threaded rod (33) in a perforation manner, and the lower end of the first threaded rod (33) is in threaded connection with the upper end surface of the lifting mechanism (4).
4. The construction device of the prestressed pipe pile according to claim 1, wherein the lifting mechanism (4) is composed of a sliding block (41), a second hydraulic cylinder (42) and a supporting plate (43), the lower end of the second hydraulic cylinder (42) is connected to the upper end surface of the sliding block (41) in a penetrating manner, the upper end of the second hydraulic cylinder (42) is connected to the upper end surface of the supporting plate (43) in a penetrating manner, the sliding block (41) is connected to the inside of the sliding groove (31) in a sliding manner, the lower end of the sliding block (41) is fixedly connected with a pulley piece (44), and the lower end of the pulley piece (44) is connected to the inner wall bottom surface of the sliding groove (31) in a sliding manner.
5. A pre-stressed pipe pile construction device according to claim 3, wherein the outer side of the spring buffer (32) is abutted against the outer side surface of the sliding block (41), and the lower end of the first threaded rod (33) is threaded on the upper end surface of the sliding block (41).
6. The prestressed pipe pile construction device according to claim 1, wherein the clamping member (6) is composed of a servo motor (61), a second threaded rod (62) and a clamping gripper (63), a fixing frame (64) is fixedly connected to the bottom surface of the lower end of the servo motor (61), the upper end surface of the fixing frame (64) is fixedly connected to the bottom surface of the lower end of the supporting plate (43), the left side of the second threaded rod (62) is fixedly connected to the servo motor (61), the upper end of the clamping gripper (63) is in threaded connection with the middle of the second threaded rod (62), the right end of the second threaded rod (62) is rotatably connected to the side surfaces of the left side and the right side of the extrusion block (5), and the inner side of the clamping gripper (63) abuts against the outer side of the pipe pile body (7).
7. The prestressed tubular pile construction device according to claim 1, characterized in that, the inside perforation of tubular pile body (7) is connected with connecting rod (71), the lower extreme fixedly connected with thread block (72) of connecting rod (71), thread block (72) threaded connection is at the lower extreme of tubular pile body (7), the lower extreme bottom surface fixedly connected with end block (73) of tubular pile body (7), thread block (72) threaded connection is on the inner wall of end block (73), grout passageway (74) has been seted up on the inner wall of end block (73), the inside perforation of tubular pile body (7) is connected with slip casting pipe (75).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011067277.8A CN112376562A (en) | 2020-10-05 | 2020-10-05 | Prestressed pipe pile construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011067277.8A CN112376562A (en) | 2020-10-05 | 2020-10-05 | Prestressed pipe pile construction device |
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| Publication Number | Publication Date |
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| CN112376562A true CN112376562A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011067277.8A Pending CN112376562A (en) | 2020-10-05 | 2020-10-05 | Prestressed pipe pile construction device |
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| CN (1) | CN112376562A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281823A (en) * | 1990-03-29 | 1991-12-12 | Giken Seisakusho Co Ltd | Steel pipe pile force-fit machine and force-fit method |
| JP2000002070A (en) * | 1998-06-12 | 2000-01-07 | Giken Seisakusho Co Ltd | Pile jacking device |
| CN1594756A (en) * | 2004-07-13 | 2005-03-16 | 蔡崇晓 | Drilling and pressing type pile press and construction technology |
| CN101761081A (en) * | 2010-01-05 | 2010-06-30 | 赵黎明 | Construction method and equipment of holding and pressing type static-pressure driven cast-in-place pile |
| CN102733388A (en) * | 2011-04-13 | 2012-10-17 | 三和机材株式会社 | Method for embedding concrete piles and device thereof |
| CN209907390U (en) * | 2019-01-17 | 2020-01-07 | 福建省大地管桩有限公司 | Ground-assisted force-applying spiral pile-removing device |
-
2020
- 2020-10-05 CN CN202011067277.8A patent/CN112376562A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281823A (en) * | 1990-03-29 | 1991-12-12 | Giken Seisakusho Co Ltd | Steel pipe pile force-fit machine and force-fit method |
| JP2000002070A (en) * | 1998-06-12 | 2000-01-07 | Giken Seisakusho Co Ltd | Pile jacking device |
| CN1594756A (en) * | 2004-07-13 | 2005-03-16 | 蔡崇晓 | Drilling and pressing type pile press and construction technology |
| CN101761081A (en) * | 2010-01-05 | 2010-06-30 | 赵黎明 | Construction method and equipment of holding and pressing type static-pressure driven cast-in-place pile |
| CN102733388A (en) * | 2011-04-13 | 2012-10-17 | 三和机材株式会社 | Method for embedding concrete piles and device thereof |
| CN209907390U (en) * | 2019-01-17 | 2020-01-07 | 福建省大地管桩有限公司 | Ground-assisted force-applying spiral pile-removing device |
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Application publication date: 20210219 |
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