CN114575342A - Pile pulling device and method - Google Patents
Pile pulling device and method Download PDFInfo
- Publication number
- CN114575342A CN114575342A CN202111610751.1A CN202111610751A CN114575342A CN 114575342 A CN114575342 A CN 114575342A CN 202111610751 A CN202111610751 A CN 202111610751A CN 114575342 A CN114575342 A CN 114575342A
- Authority
- CN
- China
- Prior art keywords
- pile
- pile pulling
- pulling device
- strip
- steel plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002689 soil Substances 0.000 claims abstract description 10
- 238000007569 slipcasting Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
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
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- 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
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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)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a pile pulling device and a pile pulling method. The steel plate bottom support is a rectangular steel pipe, inverted splayed strip-shaped holes are formed in the steel plate bottom support, a movable rod is arranged in each of the two strip-shaped holes, and the movable rods can slide in the strip-shaped holes; the diameter of the pile to be pulled out is D, and the distance between the bottoms of the strip-shaped holes is D1A top interval of D2Then, the following conditions are satisfied: d1<D<D2(ii) a And a vertical high-pressure water pipe or a high-pressure air pipe is arranged on the steel member. The pile pulling device can effectively avoid pile breakage by enabling the movable rod to support the bottom of the old pile to pull the old pile out of the soil body under the bottom bearing force; and the friction resistance of the pile pulling device can be reduced by high pressure water or high pressure gas during the process of pressing down and pulling out the pile pulling device,the construction efficiency is improved; through setting up the slip casting pipe can extract the in-process at old stake and carry out the slip casting to the stake hole, prevent that the stake hole from collapsing.
Description
Technical Field
The invention relates to a pile pulling device and method, and belongs to the technical field of pile pulling.
Background
At present, the construction sometimes needs to be carried out by pulling out the constructed old pile. At present, a hydraulic pile extractor is usually adopted for pile extraction, a pile body is clamped through a pile clamping device, a hydraulic oil cylinder forcibly presses the pile clamping device to enable the pile body to be lifted upwards for a certain distance, and then the pile body is removed from a soil layer section by section.
Disclosure of Invention
The application provides a pile pulling device and a pile pulling method, which are used for solving the problems that the existing pile pulling device is complex in structure and can break piles.
In order to solve the technical problems, the invention comprises the following technical scheme:
the pile pulling device comprises a steel member and a steel plate bottom support, wherein the steel plate bottom support is arranged at the bottom of the steel member;
the steel plate bottom support is a rectangular steel pipe, inverted splayed strip-shaped holes are formed in the steel plate bottom support, a movable rod is arranged in each of the two strip-shaped holes, and the movable rods can slide in the strip-shaped holes; the diameter of the pile to be pulled out is D, and the distance between the bottoms of the strip-shaped holes is D1A top interval of D2Then, the following are satisfied: d1<D<D2；
The steel member is provided with a vertical high-pressure water pipe or a high-pressure air pipe which is used for reducing the frictional resistance in the process of sinking or lifting the pile pulling device; and a grouting pipe is also arranged for grouting and backfilling in the pile pulling process.
Further, the steel member is a Larsen steel member, and the high-pressure water pipe or the high-pressure air pipe and the grouting pipe are arranged in the lock catch of the Larsen steel member.
Correspondingly, the application also provides a pile pulling method, the pile pulling device is adopted for pile pulling, and the pile pulling method comprises the following steps:
the pile pulling device is hoisted in place, a vibration hammer is adopted at the top of the pile pulling device to vibrate the top of a steel member at high frequency, so that a steel plate bottom support is sleeved on an old pile to be pulled, two movable rods are positioned at two sides of the old pile, and the steel plate bottom support is pressed into a soil body along the length direction of the old pile; in the process of pressing down, a high-pressure air pipe or a high-pressure water pipe is opened, so that the frictional resistance of the soil body is reduced;
step two, when the steel plate bottom support sinks to the position that the movable rod is located below the old pile, the pile pulling device is lifted upwards for a certain distance, so that the movable rod moves downwards to the bottom of the strip-shaped hole and supports the bottom end of the old pile;
and step three, lifting the pile pulling device upwards to carry out formal pile pulling, reducing the frictional resistance of the pile pulling device by adopting high-pressure air or high-pressure water in the pile pulling process, and grouting and backfilling by adopting a grouting pipe.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: according to the pile pulling device, the steel plate bottom support is pressed into the bottom of an old pile to be pulled, the movable rod supports the bottom of the old pile, the old pile is pulled out of a soil body under the bottom bearing force, and pile breakage can be effectively avoided; in the process of pressing down and pulling out the pile pulling device, the frictional resistance of the pile pulling device can be reduced through high-pressure water or high-pressure gas, and the construction efficiency is improved; the steel member adopts the Larsen steel sheet pile, and the material easily acquires, and the high-pressure water pipe, high-pressurepipe and the slip casting pipe of being convenient for lay, can extract the in-process at old stake through setting up the slip casting pipe and carry out the slip casting to the stake hole, prevents that the stake hole from collapsing.
Drawings
FIG. 1 is a schematic structural view of a pile pulling apparatus according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a cross-sectional view taken along line B-B of fig. 1.
The numbers in the figures are as follows:
10-a steel member; 11-Larsen steel sheet pile; 12-high pressure water pipe or high pressure air pipe; 13-grouting pipe;
20-steel plate bottom support; 21-strip-shaped holes; 22-a movable rod.
Detailed Description
The pile pulling device and method provided by the invention are further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
As shown in fig. 1, the pile pulling device provided by the present embodiment includes a steel member 10 and a steel plate shoe 20, wherein the steel plate shoe 20 is disposed at the bottom of the steel member 10.
As shown in fig. 1 to 3, the steel plate bottom support 20 is a rectangular steel pipe, the steel plate bottom support 20 is provided with bar-shaped holes 21 with inverted eight characters, two movable rods 22 are respectively arranged in the two bar-shaped holes 21, and the movable rods 22 can slide in the bar-shaped holes 21; the diameter of the pile to be pulled out is D, and the distance between the bottom parts of the strip-shaped holes 21 is D1A top interval of D2Then, the following conditions are satisfied: d1<D<D2。
As shown in fig. 1 to 3, a vertical high-pressure water pipe or high-pressure air pipe 12 is arranged on the steel member 10 to reduce frictional resistance during sinking or lifting of the pile pulling device; and a grouting pipe 13 is also arranged for grouting and backfilling in the pile pulling process.
As shown in fig. 1 to 3, the steel member 10 is a larsen steel member 10, and the high-pressure water pipe or high-pressure air pipe 12 and the grouting pipe 13 are disposed in the lock catch of the larsen steel member 10.
According to the pile pulling device provided by the embodiment, the steel plate bottom support 20 is pressed into the bottom of an old pile to be pulled, the movable rod 22 supports the bottom of the old pile, the old pile is pulled out from a soil body under the bottom bearing force, and pile breakage can be effectively avoided; in the process of pressing down and pulling out the pile pulling device, the frictional resistance of the pile pulling device can be reduced through high-pressure water or high-pressure air, and the construction efficiency is improved; steel member 10 adopts Larsen steel sheet pile 11, and the material easily acquires, and the high-pressure water pipe of being convenient for, high-pressurepipe and slip casting pipe 13 lay, can pull out the in-process at old stake through setting up slip casting pipe 13 and carry out the slip casting to the stake hole, prevents that the stake hole from collapsing.
Example two
The present embodiment provides a pile pulling method, which is implemented by using the pile pulling apparatus described in the first embodiment, and is further described with reference to fig. 1 to 3. The pile pulling method comprises the following steps:
step one, hoisting the pile pulling device in place, and vibrating the top of the steel member 10 at high frequency by using a vibration hammer to enable a steel plate bottom support 20 to be sleeved on an old pile to be pulled, wherein two movable rods 22 are positioned at two sides of the old pile, and the steel plate bottom support 20 is pressed into a soil body along the length direction of the old pile; and in the process of pressing down, a high-pressure air pipe or a high-pressure water pipe is opened, so that the frictional resistance of the soil body is reduced. For example, the pile pulling device is hoisted by a pile pulling machine, the pile pulling machine is provided with a vibration hammer, the vibration hammer is provided with a clamp, the top of the steel member 10 of the pile pulling device is fixed by the clamp, and of course, other ways of fixing the steel member 10 and the vibration hammer can be adopted.
And step two, when the steel plate bottom support 20 sinks to the position that the movable rod 22 is positioned below the old pile, the pile pulling device is lifted upwards for a certain distance, so that the movable rod 22 moves downwards to the bottom of the strip-shaped hole 21 and supports the bottom end of the old pile.
And step three, lifting the pile pulling device upwards to carry out formal pile pulling, reducing the frictional resistance of the pile pulling device by adopting high-pressure air or high-pressure water in the pile pulling process, and grouting and backfilling by adopting a grouting pipe 13.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. A pile pulling device, which is characterized in that,
the pile pulling device comprises a steel member and a steel plate bottom support, and the steel plate bottom support is arranged at the bottom of the steel member;
the steel plate bottom support is a rectangular steel pipeThe steel plate bottom support is provided with inverted-splayed strip-shaped holes, two movable rods are arranged in the two strip-shaped holes respectively, and the movable rods can slide in the strip-shaped holes; the diameter of the pile to be pulled out is D, and the distance between the bottoms of the strip-shaped holes is D1A top interval of D2Then, the following conditions are satisfied: d1<D<D2；
The steel member is provided with a vertical high-pressure water pipe or a high-pressure air pipe which is used for reducing the frictional resistance in the process of sinking or lifting the pile pulling device; and a grouting pipe is also arranged for grouting and backfilling in the pile pulling process.
2. Pile pulling apparatus according to claim 1,
the steel member is a Larsen steel member, and the high-pressure water pipe or the high-pressure air pipe and the grouting pipe are arranged in the lock catch of the Larsen steel member.
3. A pile pulling method, characterized in that the pile pulling device of claim 1 is used for pile pulling, and the pile pulling method comprises the following steps:
the pile pulling device is hoisted in place, a vibration hammer is adopted at the top of the pile pulling device to vibrate the top of a steel member at high frequency, so that a steel plate bottom support is sleeved on an old pile to be pulled, two movable rods are positioned at two sides of the old pile, and the steel plate bottom support is pressed into a soil body along the length direction of the old pile; in the process of pressing down, a high-pressure air pipe or a high-pressure water pipe is opened, so that the frictional resistance of the soil body is reduced;
step two, when the steel plate bottom support sinks to the position that the movable rod is located below the old pile, the pile pulling device is lifted upwards for a certain distance, so that the movable rod moves downwards to the bottom of the strip-shaped hole and supports the bottom end of the old pile;
and step three, lifting the pile pulling device upwards to carry out formal pile pulling, reducing the frictional resistance of the pile pulling device by adopting high-pressure air or high-pressure water in the pile pulling process, and grouting and backfilling by adopting a grouting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610751.1A CN114575342A (en) | 2021-12-27 | 2021-12-27 | Pile pulling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610751.1A CN114575342A (en) | 2021-12-27 | 2021-12-27 | Pile pulling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114575342A true CN114575342A (en) | 2022-06-03 |
Family
ID=81769729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111610751.1A Pending CN114575342A (en) | 2021-12-27 | 2021-12-27 | Pile pulling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114575342A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009052329A (en) * | 2007-08-28 | 2009-03-12 | Toyo Constr Co Ltd | Pile pull-out device |
| CN211898382U (en) * | 2020-03-03 | 2020-11-10 | 腾达建设集团股份有限公司 | Pile pulling equipment |
| CN113737796A (en) * | 2021-09-07 | 2021-12-03 | 江苏兴宇建设集团有限公司 | Construction method for high-pressure water flushing assisted pile driving and pile pulling synchronous grouting of steel plate pile |
-
2021
- 2021-12-27 CN CN202111610751.1A patent/CN114575342A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009052329A (en) * | 2007-08-28 | 2009-03-12 | Toyo Constr Co Ltd | Pile pull-out device |
| CN211898382U (en) * | 2020-03-03 | 2020-11-10 | 腾达建设集团股份有限公司 | Pile pulling equipment |
| CN113737796A (en) * | 2021-09-07 | 2021-12-03 | 江苏兴宇建设集团有限公司 | Construction method for high-pressure water flushing assisted pile driving and pile pulling synchronous grouting of steel plate pile |
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Application publication date: 20220603 |