CN107254876B - Pile pulling device and method for reinforced concrete prestressed pipe pile - Google Patents
Pile pulling device and method for reinforced concrete prestressed pipe pile Download PDFInfo
- Publication number
- CN107254876B CN107254876B CN201710502859.6A CN201710502859A CN107254876B CN 107254876 B CN107254876 B CN 107254876B CN 201710502859 A CN201710502859 A CN 201710502859A CN 107254876 B CN107254876 B CN 107254876B
- Authority
- CN
- China
- Prior art keywords
- pile
- anchor
- pulling device
- pile body
- anchor head
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a pile pulling device and a pile pulling method for a reinforced concrete prestressed pipe pile, wherein the pile pulling device comprises a pile pulling device body, an anchor head, a second anchor body and an anchor rope; the pile pulling device body further comprises a tension module for applying tension to the anchor cable and a checkpoint bayonet for pulling up the pile body. Firstly, a layer of adhesive is smeared on the inner wall of the bottom of a pile body, then a first anchor body is firstly poured at the bottom of the pile body, then an anchor rope and an anchor head are put at the bottom, so that the anchor head is adhered with the first anchor body, then a pouring pipe is stretched to the bottom of the pile body again, a second anchor body is poured on the anchor head, then a pile pulling device body is erected on the ground, a checkpoint bayonet is clamped on the pile body, finally, after the second anchor body and the first anchor body are solidified and molded, vertical upward pulling force is applied to the anchor rope and the checkpoint bayonet, and the pulling force acts on the top and the bottom of the pile body simultaneously, so that the pile body is pulled out smoothly as a whole, and the pile body cannot be pulled out or broken. The invention also has the advantages of simple structure and convenient operation.
Description
Technical Field
The invention relates to the field of pile pulling equipment, in particular to a pile pulling device and method for reinforced concrete prestressed pipe piles.
Background
The soft soil foundation of the present buildings, especially high-rise buildings, is mostly prestressed pipe piles. The prestressed pipe pile has a significant position in the current construction industry, and the application of the prestressed pipe pile is greatly promoted. But because the building has a certain service life, and partial areas are transformed due to the need of old cities. The new construction can set a new pile foundation, and the new foundation and the old foundation influence the construction of the new foundation, so that the pipe pile embedded in the soil needs to be cleaned, but because the length of the prestressed pipe pile is longer, the pile body and the soil body are highly attached together, and the tensile bearing capacity of the pile is lower, the pile is not pulled out in the pile pulling process of the conventional pile pulling machine, and the pile body is pulled out, so that the construction is greatly plagued.
At present, the conventional technology is to apply a bayonet of a pile extractor on the top of the pipe pile, and the pile extractor applies force to extract the pipe pile. However, because the tensile capacity of concrete is poor, if the resistance is too large during pile pulling, the pile body of the pipe pile is easy to break, so that the whole pipe pile cannot be pulled up, and the construction of a new building is affected.
Therefore, the existing reinforced concrete prestressed pipe pile pulling technology needs to be further improved and perfected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a pile pulling device which has a simple structure and can pull out the whole section of prestressed pipe pile.
Another object of the present invention is to overcome the drawbacks of the prior art and to provide a pile pulling method based on the pile pulling device.
The aim of the invention is achieved by the following technical scheme:
the pile pulling device mainly comprises a pile pulling device body for applying upward tension, an anchor head, a second anchor body and an anchor rope. The pile pulling device body further comprises a tension module for applying tension to the anchor cable and a checkpoint bayonet for pulling up the pile body. The pile pulling device is erected on the ground and is positioned above the pile body, and the prestressed pipe pile can be pulled out smoothly in a whole section by applying upward pulling force to the top and the bottom of the pile body simultaneously.
Specifically, the pulling force module sets up in the bottom of pile pulling device body, the checkpoint bayonet socket is installed on the pile body outer wall, pulling force module and checkpoint bayonet socket all are connected with the drive module of pile pulling device body, exert ascending pulling force to the pile body by drive module drive pulling force module and checkpoint bayonet socket. The anchor head and the second anchor body are both fixed at the bottom of the pile body, the second anchor body is positioned above the anchor head and fixedly connected with the anchor head, and the outer wall of the second anchor body is fixedly connected with the inner wall of the pile body. One end of the anchor cable penetrates through the second anchoring body to be fixedly connected with the anchor head, the anchor cable is also fixedly connected with the second anchoring body, and the other end of the anchor cable is installed on the tension module. During operation, the tension module applies vertical upward tension to the anchor cable, and the anchor cable is fixedly connected with the second anchor body and the anchor head respectively, and the second anchor body is fixedly connected with the inner wall of the pile body, so that the tension of the tension module acts on the inner wall of the bottom of the pile body, and the tension of the checkpoint bayonet directly acts on the top of the pile body, so that the two ends of the pile body are stressed simultaneously, and the pile body is pulled out integrally.
Furthermore, because the bottom of the pile body is uneven under normal conditions, in order to enable the anchor head to be firmly adhered to the bottom of the pile body, the pile pulling device further comprises a first anchor body for filling the bottom of the pile body. The first anchoring body is arranged between the anchor head and the bottom of the pile body, so that one end of the second anchoring body is fixed with the bottom of the pile body, and the other end of the second anchoring body is fixed with the bottom of the anchor head in an adhesive manner. The design can greatly increase the adhesive force between the bottom of the pile body and the anchor head, and improve the adhesive effect, thereby pulling out the pile body more smoothly.
Furthermore, in order to further increase the adhesive force between the inner wall of the pile body and the second anchor body, the first anchor body and the anchor head, the bottom and the inner wall of the pile body are further coated with a layer of adhesive, and the adhesive is adhered to the inner wall of the pile body and is fixedly connected with the second anchor body, the first anchor body and the anchor head respectively. The design can enhance the bonding effect among the second anchoring body, the first anchoring body and the anchor head and between the second anchoring body and the inner wall of the pile body, and greatly improve the pulling force effect of the pulling force module on the pile body, so that the whole pile body is smoothly and completely pulled out.
As a preferred embodiment of the invention, the adhesive of the invention adopts epoxy resin adhesive in order to further improve the firmness of the adhesion between the second anchoring body, the first anchoring body and the anchor head and the pile body. The epoxy resin contains various polar groups and epoxy groups with great activity, so that the epoxy resin has strong adhesive force when being adhered to various polar materials such as metal, glass, cement, wood, plastic and the like, and meanwhile, the cohesive strength of an epoxy cured product is also great, so that the adhesive strength is high, the anchor head and the pile body are integrated after being adhered, and the purpose of pulling up the whole section is easier to realize when the pile is pulled up.
As a preferable scheme of the invention, in order to increase the use times of the anchor head and the anchor cable and prolong the service life, the anchor head is made of steel materials, and the anchor cable is made of non-bonding steel strands.
Furthermore, in order to ensure the personal safety of other people and avoid safety accidents during construction of the pile pulling device, the pile pulling device is also stuck with a slogan for reminding and warning non-staff.
The other object of the invention is achieved by the following technical scheme:
a pile pulling method of a pile pulling device of a reinforced concrete prestressed pipe pile mainly comprises the following steps:
step S1, uniformly spraying a layer of adhesive for enhancing the adhesive effect on the bottom and the inner wall of the bottom of the pile body;
s2, extending a pouring head of a pouring pipe to the bottom of the pile body, pouring a first anchor body to the bottom of the pile body, enabling the first anchor body to be fully contacted and fixed with the bottom of the pile body, and smoothing the upper surface of the first anchor body to enable the upper surface of the first anchor body to be better in fit with the bottom of the anchor head;
s3, fixedly connecting one end of the anchor cable with the anchor head, placing the anchor head into the bottom of the pile body, fully contacting and compacting the bottom of the anchor head with the top of the first anchor body, and fixedly connecting the first anchor body with the anchor head after solidification;
s4, stretching the pouring pipe to the bottom of the pile body again, pouring a second anchor body at the top of the anchor head, enabling the bottom of the second anchor body to be fully contacted with the top of the anchor head, enabling the inside of the second anchor body to be fully contacted with the anchor rope and bonded together, and improving the integrity of the anchor rope and the second anchor body and the pile pulling effect;
s5, erecting a pile pulling device body on the ground, and connecting the other end of the anchor cable to the tension module;
s6, mounting the checkpoint bayonet on the pile body, and adjusting the size of the checkpoint bayonet to enable the checkpoint bayonet to be fixedly connected with the pile body;
s7, after the second anchoring body and the first anchoring body are fully solidified, starting the pile pulling device, and simultaneously driving the tension module and the checkpoint bayonet to enable the upper end and the lower end of the pile body to be stressed simultaneously to pull out the pile body integrally;
and S8, backfilling the hollow after the pile body is pulled out with soil after the pile body is pulled out.
The working process and principle of the invention are as follows: firstly, a layer of adhesive is coated on the inner wall of the bottom of a pile body, then a pouring pipe is stretched to the bottom of the pile body to pour a first anchor body, then an anchor rope and an anchor head are placed in the bottom, the anchor head and the first anchor body are adhered, then the pouring pipe is stretched to the bottom of the pile body again to pour a second anchor body on the anchor head, then a pile pulling device body is erected on the ground, a checkpoint bayonet is clamped on the pile body, finally, after the second anchor body and the first anchor body are solidified and molded, a vertical upward pulling force is applied to the anchor rope and the checkpoint bayonet, and the pulling force acts on the top and the bottom of the pile body simultaneously, so that the pile body is pulled out integrally smoothly, and the pile body cannot be pulled out or broken. The invention also has the advantages of simple structure, convenient operation and easy implementation.
Compared with the prior art, the invention has the following advantages:
(1) The pile pulling device for the reinforced concrete prestressed pipe pile provided by the invention adopts the vertical and upward pulling force of the pile body to enable the whole pile body to be pulled out completely, thereby avoiding the phenomena of damage and fracture of the pile body.
(2) The pile pulling device for the reinforced concrete prestressed pipe pile adopts the first anchoring body, the second anchoring body and the inner wall of the pile body to be adhered into a whole, so that the pile body is easier to pull out the whole section of the pile body when the pile pulling device body applies upward pulling force, the pile pulling time is shortened, and the working efficiency is improved.
(3) The pile pulling device for the reinforced concrete prestressed pipe pile adopts the epoxy resin with high adhesive strength as the adhesive, so that the second anchoring body, the first anchoring body, the anchor head and the pile body are firmly adhered and combined into a whole, and the pile pulling device is very helpful for pulling out the whole section of the pile body.
Drawings
Fig. 1 is a schematic structural view of a pile pulling device for a reinforced concrete prestressed pipe pile.
Fig. 2 is a schematic structural view of the pile bottom provided by the invention.
Fig. 3 is a schematic cross-sectional view of a second anchor provided by the present invention.
Fig. 4 is a construction sequence diagram of a pile pulling method according to the present invention.
Fig. 5 is a second construction sequence diagram of the pile pulling method provided by the invention.
Fig. 6 is a construction sequence diagram III of the pile pulling method provided by the invention.
Fig. 7 is a construction sequence diagram of a pile pulling method according to the present invention.
Fig. 8 is a construction sequence diagram five of the pile pulling method provided by the invention.
The reference numerals in the above figures illustrate:
100-pile pulling device body, 110-tension module, 120-checkpoint bayonet, 300-anchor cable, 400-pile body, 500-second anchor body, 600-anchor head and 800-adhesive.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and clear, the present invention will be further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 and 2, the present invention discloses a pile pulling apparatus for a reinforced concrete prestressed pipe pile, which mainly includes a pile pulling apparatus body 100 for applying an upward pulling force, an anchor head 600, a second anchor body 500, and an anchor cable 300. The pile pulling device body 100 further comprises a tension module 110 for applying tension to the anchor cable 300, and a checkpoint bayonet 120 for pulling up the pile body 400. The pile pulling device is erected on the ground and is positioned above the pile body 400, and the prestressed pipe pile can be pulled out smoothly in a whole section by simultaneously applying upward pulling force to the top and the bottom of the pile body 400.
Specifically, the tension module 110 is disposed at the bottom of the pile pulling device body 100, the checkpoint bayonet 120 is mounted on the outer wall of the pile body 400, the tension module 110 and the checkpoint bayonet 120 are both connected with a driving module of the pile pulling device body 100, and the driving module drives the tension module 110 and the checkpoint bayonet 120 to apply an upward tension to the pile body 400. The anchor head 600 and the second anchor body 500 are both fixed at the bottom of the pile body 400, the second anchor body 500 is located above the anchor head 600 and fixedly connected with the anchor head 600, and the outer wall of the second anchor body 500 is fixedly connected with the inner wall of the pile body 400. One end of the anchor cable 300 passes through the second anchoring body 500 to be fixedly connected with the anchor head 600, and the anchor cable 300 is also fixedly connected with the second anchoring body 500, and the other end of the anchor cable 300 is mounted on the tension module 110. During operation, the tension module 110 applies a vertical upward tension to the anchor cable 300, and because the anchor cable 300 is fixedly connected with the second anchoring body 500 and the anchor head 600 respectively, and the second anchoring body 500 is fixedly connected with the inner wall of the pile body 400, the tension of the tension module 110 acts on the inner wall of the bottom of the pile body 400, and the tension of the checkpoint bayonet 120 directly acts on the top of the pile body 400, so that both ends of the pile body 400 are stressed simultaneously, thereby facilitating the overall extraction of the pile body 400.
Further, since the bottom of the pile body 400 is generally rugged, the pile pulling apparatus according to the present invention further includes a first anchor for leveling the bottom of the pile body 400 in order to firmly adhere the anchor head 600 to the bottom of the pile body 400. The first anchoring body is arranged between the anchor head 600 and the bottom of the pile body 400, so that one end of the second anchoring body 500 is fixed with the bottom of the pile body 400, and the other end is fixed with the bottom of the anchor head 600 in an adhesive manner. The design can greatly increase the adhesive force between the bottom of the pile body 400 and the anchor head 600, and improve the adhesive effect, thereby more smoothly pulling out the pile body 400.
Further, in order to further increase the adhesion force between the inner wall of the pile body 400 and the second anchor body 500, the first anchor body and the anchor head 600, a layer of adhesive 800 is further coated on the bottom and the inner wall of the pile body 400 according to the present invention, and the adhesive 800 is adhered to the inner wall of the pile body 400 and fixedly connected with the second anchor body 500, the first anchor body and the anchor head 600, respectively. Such a design can enhance the bonding effect between the second anchor body 500, the first anchor body and the anchor head 600, and between the second anchor body and the inner wall of the pile body 400, and greatly improve the pulling force effect of the pulling force module 110 acting on the pile body 400, thereby smoothly and completely pulling out the entire pile body 400.
As a preferred embodiment of the present invention, the adhesive 800 according to the present invention employs an epoxy adhesive 800 in order to further enhance the firmness of the adhesion between the second anchor 500, the first anchor and the anchor head 600 and the pile body 400. The epoxy resin contains various polar groups and epoxy groups with high activity, so that the epoxy resin has high adhesive force when being adhered to various polar materials such as metal, glass, cement, wood, plastic and the like, and meanwhile, the cohesive strength of an epoxy cured product is high, so that the adhesive strength is high, the anchor head 600 and the pile body 400 are adhered to form a whole, and the whole-section pulling purpose is easier to realize when pulling a pile.
As a preferred scheme of the present invention, in order to increase the number of times of use of the anchor head 600 and the anchor cable 300 and to extend the service life, the anchor head 600 is made of steel materials, and the anchor cable 300 is made of non-bonded steel strands.
Furthermore, in order to ensure the personal safety of other people and avoid safety accidents during construction of the pile pulling device, the pile pulling device is also stuck with a slogan for reminding and warning non-staff.
The invention also discloses a pile pulling method of the pile pulling device of the reinforced concrete prestressed pipe pile, which mainly comprises the following steps:
step S1, uniformly spraying a layer of adhesive 800 for enhancing the bonding effect on the bottom and the inner wall of the bottom of the pile body 400;
step S2, extending a pouring head of a pouring pipe to the bottom of the pile body 400, pouring a first anchor body to the bottom of the pile body 400, enabling the first anchor body to be fully contacted and fixed with the bottom of the pile body 400, and flattening the upper surface of the first anchor body to enable the degree of fit between the upper surface of the first anchor body and the bottom of the anchor head 600 to be better;
step S3, fixedly connecting one end of the anchor cable 300 with the anchor head 600, placing the anchor head 600 into the bottom of the pile body 400, fully contacting and compacting the bottom of the anchor head 600 with the top of the first anchor body, and fixedly connecting the first anchor body with the anchor head 600 after solidification;
step S4, the pouring pipe is stretched to the bottom of the pile body 400 again, a second anchoring body 500 is poured at the top of the anchor head 600, the bottom of the second anchoring body 500 is fully contacted with the top of the anchor head 600, and the inside of the second anchoring body 500 is fully contacted with the anchor rope 300 and bonded together, so that the integrity of the anchor rope 300 and the second anchoring body 500 and the pile pulling effect are improved;
step S5, erecting the pile pulling device body 100 on the ground, and connecting the other end of the anchor cable 300 to the tension module 110;
step S6, mounting the checkpoint 120 on the pile body 400, and adjusting the size of the checkpoint 120 to be fixedly connected with the pile body 400;
step S7, after the second anchoring body 500 and the first anchoring body are fully solidified, starting the pile pulling device, and simultaneously driving the tension module 110 and the checkpoint bayonet 120 to enable the upper end and the lower end of the pile body 400 to be stressed simultaneously to pull out the pile body 400 integrally;
and S8, backfilling the hollow after the pile body 400 is pulled out with soil after the pile body 400 is pulled out.
The working process and principle of the invention are as follows: firstly, a layer of adhesive 800 is smeared on the inner wall of the bottom of the pile body 400, then a pouring pipe is stretched to the bottom of the pile body 400, a first anchoring body is poured firstly, then an anchor rope 300 and an anchor head 600 are put into the bottom, the anchor head 600 is adhered with the first anchoring body, then the pouring pipe is stretched to the bottom of the pile body 400 again, a second anchoring body 500 is poured on the anchor head 600, then the pile pulling device body 100 is erected on the ground, the checkpoint bayonet 120 is clamped on the pile body 400, finally, after the second anchoring body 500 and the first anchoring body are solidified and formed, a vertical upward pulling force is applied to the anchor rope 300 and the checkpoint bayonet 120, and the pulling force acts on the top and the bottom of the pile body 400 simultaneously, so that the pile body 400 is pulled out smoothly as a whole, and the pile body 400 cannot be pulled out or broken. The invention also has the advantages of simple structure, convenient operation and easy implementation.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (7)
1. The pile pulling device for the reinforced concrete prestressed pipe pile is characterized by comprising a pile pulling device body, an anchor head, a second anchor body and an anchor rope; the pile pulling device body further comprises a tension module for applying tension to the anchor cable and a checkpoint bayonet for pulling up the pile body;
the tension module is arranged at the bottom of the pile pulling device body, and the checkpoint bayonet is arranged on the outer wall of the pile body; the anchor head and the second anchor body are both fixed at the bottom of the pile body, the second anchor body is positioned above the anchor head and fixedly connected with the anchor head, and the second anchor body is fixedly connected with the inner wall of the pile body; one end of the anchor cable penetrates through the second anchor body to be fixedly connected with the anchor head, and the other end of the anchor cable is arranged on the tension module.
2. A pile-pulling apparatus for a reinforced concrete prestressed pipe pile according to claim 1, further comprising a first anchor body for filling up the bottom of the pile body; the first anchoring body is arranged between the anchor head and the bottom of the pile body.
3. The pile pulling device of the reinforced concrete prestressed pipe pile according to claim 1, wherein the inner wall of the bottom of the pile body is further coated with a layer of adhesive, and the adhesive is fixedly connected with the second anchor body, the first anchor body and the anchor head respectively.
4. A pile extractor for reinforced concrete prestressed pipe piles according to claim 3, wherein said adhesive is an epoxy adhesive.
5. The pile pulling device for the reinforced concrete prestressed pipe pile according to claim 1, wherein the anchor head is made of steel materials, and the anchor cable is made of unbonded steel strands.
6. The pile pulling device for the reinforced concrete prestressed pipe pile according to claim 1, wherein a slogan for warning is further attached to the pile pulling device.
7. The pile pulling method of the pile pulling device for the reinforced concrete prestressed pipe pile is characterized by comprising the following steps of:
step S1, uniformly spraying a layer of adhesive on the bottom and the inner wall of the bottom of the pile body;
s2, extending a pouring head of a pouring pipe to the bottom of the pile body, pouring a first anchor body to the bottom of the pile body, enabling the first anchor body to be fully contacted and fixed with the bottom of the pile body, and flattening the upper surface of the first anchor body;
s3, fixedly connecting one end of the anchor cable with the anchor head, placing the anchor head into the bottom of the pile body, fully contacting and compacting the bottom of the anchor head with the top of the first anchor body, and fixedly connecting the first anchor body with the anchor head after solidification;
s4, stretching the pouring pipe to the bottom of the pile body again, pouring a second anchoring body at the top of the anchor head, and enabling the bottom of the second anchoring body to be fully contacted with the top of the anchor head;
s5, erecting a pile pulling device body on the ground, and connecting the other end of the anchor cable to the tension module;
s6, mounting the checkpoint bayonet on the pile body, and adjusting the size of the checkpoint bayonet to enable the checkpoint bayonet to be fixedly connected with the pile body;
s7, after the second anchoring body and the first anchoring body are fully solidified, starting the pile pulling device, and simultaneously driving the tension module and the checkpoint bayonet to enable the upper end and the lower end of the pile body to be stressed simultaneously to pull out the pile body integrally;
and S8, backfilling the hollow after the pile body is pulled out with soil after the pile body is pulled out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502859.6A CN107254876B (en) | 2017-06-27 | 2017-06-27 | Pile pulling device and method for reinforced concrete prestressed pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502859.6A CN107254876B (en) | 2017-06-27 | 2017-06-27 | Pile pulling device and method for reinforced concrete prestressed pipe pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107254876A CN107254876A (en) | 2017-10-17 |
| CN107254876B true CN107254876B (en) | 2023-09-19 |
Family
ID=60024292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502859.6A Active CN107254876B (en) | 2017-06-27 | 2017-06-27 | Pile pulling device and method for reinforced concrete prestressed pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107254876B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148751A1 (en) * | 2018-02-05 | 2019-08-08 | 山东大学 | Pulling-out device for precast concrete support wall |
| CN108894224A (en) * | 2018-08-03 | 2018-11-27 | 中冶沈勘工程技术有限公司 | A kind of method for pulling out of static pressure pipe pile |
| CN110306553B (en) * | 2019-04-28 | 2021-06-29 | 中国一冶集团有限公司 | Underwater steel pile dismantling device and method |
| CN111926815B (en) * | 2020-08-11 | 2021-04-02 | 江苏建院营造股份有限公司 | Tubular pile pulling method and device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153818A (en) * | 1982-03-09 | 1983-09-13 | Kubota Ltd | Drawing of existing steel tubular pile |
| NL8501597A (en) * | 1985-06-03 | 1987-01-02 | Ihc Holland Nv | METHOD AND APPARATUS FOR PULLING A PIPE OR POLE DRIVEN INTO THE GROUND |
| JP4400700B2 (en) * | 2000-10-27 | 2010-01-20 | アースピック工業株式会社 | Cutting and drawing method and equipment for existing piles |
| JP2002167761A (en) * | 2000-11-30 | 2002-06-11 | Takeshi Shinohara | Extracting method of buried concrete pile and extracting hooking tool |
| CN102561352B (en) * | 2012-01-21 | 2015-12-16 | 上海尔速机械设备有限公司 | A kind of sawing foundation pile method and device thereof |
| CN105649084A (en) * | 2016-03-21 | 2016-06-08 | 中交第二航务工程局有限公司 | Self-lifting type steel protection cylinder uplifting device and construction method thereof |
| CN106049496A (en) * | 2016-07-22 | 2016-10-26 | 中铁四局集团第工程有限公司 | Pulling-out device used for steel pipe fender post recycling and construction method |
| CN207032245U (en) * | 2017-06-27 | 2018-02-23 | 广东工业大学 | A kind of pile pulling device of armored concrete pile for prestressed pipe |
-
2017
- 2017-06-27 CN CN201710502859.6A patent/CN107254876B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107254876A (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107254876B (en) | Pile pulling device and method for reinforced concrete prestressed pipe pile | |
| CN102425311B (en) | Concrete structure reinforcing method based on near surface mounted prestressed FRP (Fiber Reinforced Polymer) | |
| CN105970803B (en) | Shear-resistant energy dissipation device of assembled pier and construction method | |
| CN105507470A (en) | Periphery-overlapped integral fabricated floor and construction method thereof | |
| CN106544962B (en) | The prestress reinforced construction method of concrete structure | |
| CN111764931A (en) | High-ground-stress weak surrounding rock tunnel supporting structure and construction method thereof | |
| CN105332375A (en) | Fixing method for base of pile driver for static-pressed pile by anchor rods | |
| JP4087827B2 (en) | Bridge pier reinforcement method | |
| CN110735403B (en) | Bridge pier crack repairing structure and reinforcing method thereof | |
| CN207032245U (en) | A kind of pile pulling device of armored concrete pile for prestressed pipe | |
| CN211714618U (en) | Node structure of non-adhesive prestress tensioning end | |
| CN105673354B (en) | Connection structure between concrete tower and steel tower tube | |
| CN109386054A (en) | The prefabricated assembled beam column T-section point of soap-free emulsion polymeization | |
| CN205976593U (en) | Anti -shearing carbon fiber plate ground tackle | |
| CN210177380U (en) | Concrete bridge structure is consolidated in combination of filling material in steel sheet | |
| CN211228129U (en) | Prefabricated roof beam hoist and mount hole block structure of assembling of festival section | |
| CN210856913U (en) | FRP (fiber reinforced plastic) confined concrete hollow self-resetting-mild steel extrusion energy dissipation pier structure | |
| CN204590415U (en) | A kind of prestressed reinforced concrete construction | |
| CN210712562U (en) | Tower crane system for construction of cast-in-situ tower column of cable-stayed bridge | |
| CN205976542U (en) | Glass fiber reinforced prestressing force anti -floating anchor rod loading device | |
| CN103103983B (en) | Recoverable combined type anchor device and construction method thereof | |
| CN204081492U (en) | A kind of hollow mold anti-floating anchoring assembly | |
| CN204531355U (en) | Cantilever Beams anchor device | |
| CN206873291U (en) | A kind of precast assembly crash barrier structure | |
| CN107780596B (en) | Anchoring structure system of FRP cloth and structural concrete and construction method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |