CN114000526B - Pile extension device and alternate pile driving using same - Google Patents
Pile extension device and alternate pile driving using same Download PDFInfo
- Publication number
- CN114000526B CN114000526B CN202111401939.5A CN202111401939A CN114000526B CN 114000526 B CN114000526 B CN 114000526B CN 202111401939 A CN202111401939 A CN 202111401939A CN 114000526 B CN114000526 B CN 114000526B
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- CN
- China
- Prior art keywords
- pile
- guide seat
- main shaft
- tensioning plate
- fixed guide
- Prior art date
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 12
- 210000001503 joint Anatomy 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
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 relates to the technical field of submarine pile foundation construction equipment, in particular to a pile extension device, which comprises a fixed guide seat, wherein a tubular main shaft is fixedly arranged on the fixed guide seat, an oil cylinder is fixedly arranged on the fixed guide seat, a piston rod end of the oil cylinder penetrates through the main shaft and is fixedly connected with a movable guide seat, and the movable guide seat is in sliding fit with the main shaft; a plurality of pairs of guide grooves with inclined bottoms are formed on the fixed guide seat and the movable guide seat, and tensioning plates are embedded in each pair of guide grooves and are in sliding fit with the bottoms of the guide grooves. The pile extension device can form tight connection with the pipe pile by using the tensioning plate, so that the construction precision of the pipe pile is ensured, and the driven pipe pile is conveniently pulled out. The invention also provides a pile replacing device using the pile extension device.
Description
Technical Field
The invention relates to the technical field of submarine pile foundation construction equipment, in particular to a pile extension device and a pile replacement device using the pile extension device.
Background
In ocean engineering construction such as cross-sea bridge, pile foundation construction is a sub-engineering with high difficulty and high cost. In order to adapt to the special construction conditions of ocean, tubular piles are commonly used in the construction of submarine pile foundations. The instantaneous explosive force is very big in the pile hammer working process, need use the pile to replace the power on the pile hammer evenly to transmit on the tubular pile, avoid the tubular pile to receive the damage.
The patent of the utility model with the prior authorized bulletin number of CN204418182U discloses a piling which comprises a pile top seal, a force application section, lifting lugs, a guide section, a butt joint section, an anti-inserting toggle plate and a penetration section. Pile top seals are installed on the upper portion of the force application section, a guide section, a butt joint section and a penetration section are installed and connected on the lower portion in sequence, lifting lugs are installed on the guide section, and an anti-plugging toggle plate is installed and connected between the butt joint section and the penetration section.
By adopting the technical scheme, when in use, the inserting section is inserted into the tubular pile to enable the alternate piling to be in butt joint with the tubular pile, and the pile hammer is used for applying load on the alternate piling of the invention at the upper part to transfer the stress to the treated pile pipe. However, the strength of connection between the pile and the pipe pile is low in the above technical scheme, it is difficult to ensure sufficient pile driving precision of the pipe pile in the pile driving process, and meanwhile, the pile which has been driven well is difficult to be pulled out in the necessary condition, so that great inconvenience exists in the construction process.
Disclosure of Invention
The invention aims to provide a pile extension device, which is used for stably connecting a pipe pile with alternate pile driving in the submarine pile driving process, so that the stability and the pile driving precision of the pipe pile are improved, the driven pipe pile can be conveniently pulled out by assisting the alternate pile driving under the necessary condition, the convenience of submarine pile foundation construction is improved, and the cost is saved and the construction efficiency is improved.
The technical aim of the invention is realized by the following technical scheme:
The pile extension device comprises a fixed guide seat, wherein a tubular main shaft is fixedly arranged on the fixed guide seat, an oil cylinder is fixedly arranged on the fixed guide seat, a piston rod end of the oil cylinder penetrates through the main shaft and is fixedly connected with a movable guide seat, and the movable guide seat is in sliding fit with the main shaft; the fixed guide seat and the movable guide seat are provided with a plurality of pairs of guide grooves with inclined bottoms, each pair of guide grooves is embedded with a tensioning plate, and the tensioning plates are in sliding fit with the bottom of the guide grooves.
Through adopting above-mentioned technical scheme, under the drive of hydro-cylinder, movable guide seat removes to the direction that is close to fixed guide seat, and the tensioning plate slides in the bottom of guide way and takes place the displacement that keeps away from the main shaft by the effect of guide way tank bottom in this in-process. In the use, the on-the-spot operating personnel inserts the pile extension ware to the last port of tubular pile earlier, then starts the hydro-cylinder and makes all tight boards that rise all move to the direction of keeping away from the main shaft, rises tight board butt to the tubular pile inner wall and keeps necessary pressure with the tubular pile inner wall between, makes tubular pile and pile extension ware keep stable connection.
The invention is further provided with: the bottoms of the guide grooves are respectively provided with a self-locking inclined surface, the self-locking inclined surfaces are positioned on one side of each pair of guide grooves away from each other, and the gradient of the self-locking inclined surfaces is smaller than that of the bottoms of the guide grooves; and the two ends of the tensioning plate are respectively provided with a fold line-shaped matching surface, and the matching surfaces are in sliding fit with the bottom of the guide groove and the self-locking inclined plane.
Through adopting above-mentioned technical scheme, after tensioning board and tubular pile inner wall butt, tensioning board and auto-lock inclined plane butt simultaneously, the drive of hydro-cylinder reaches necessary pressure between tensioning board and the tubular pile this moment, and produces the auto-lock between auto-lock inclined plane and the tensioning board and make and keep pressure between tensioning board and the tubular pile, avoid producing not hard up between pile extension ware and the tubular pile in the use, effectively guarantee pile extension ware's reliability in use.
The invention is further provided with: and a plurality of reset springs are fixedly connected between the main shaft and the tensioning plate, between the fixed guide seat and the tensioning plate and between the movable guide seat and the tensioning plate.
Through adopting above-mentioned technical scheme, when needs loosen pile extension ware and tubular pile, start the hydro-cylinder and make movable guide holder to the direction removal of keeping away from fixed guide holder, the tight board that rises is retracted no longer with tubular pile inner wall butt under reset spring's pulling this moment. The setting of reset spring greatly improves the convenience that the tensioning plate was retracted and the practicality of pile extension ware.
The invention is further provided with: the side of the tensioning plate, which is far away from the main shaft, is fixedly provided with a plurality of tensioning shoes, and one surface of each tensioning shoe, which is contacted with the tubular pile, is provided with a clamping tooth.
Through adopting above-mentioned technical scheme, when using, rise the boots and can carry out abundant contact with the tubular pile inner wall, guarantee to rise the reliable contact between boots and the tubular pile inner wall, the tight tooth of biting simultaneously can bite on the tubular pile inner wall, avoids rising to take place relative slip between boots and the tubular pile inner wall, greatly improves the joint strength between boots and the tubular pile inner wall that rises.
The invention is further provided with: the surface of the clenching teeth is provided with a quenching layer.
By adopting the technical scheme, the quenching layer can effectively improve the wear resistance of the surface of the clenched teeth, prolong the service life of the clenched teeth, and ensure that the expansion boot has enough toughness because the main body part of the expansion boot is in an unquenched state.
The invention is further provided with: one side of the movable guide seat, which is far away from the fixed guide seat, is fixedly provided with a guide frame for guiding the pile extension device to be inserted into the tubular pile.
Through adopting above-mentioned technical scheme, when using, the leading truck can make pile extension ware insert in the tubular pile fast convenient, effectively improves pile extension ware's use convenience.
The invention is further provided with: the tensioning plate is provided with a plurality of lightening holes.
By adopting the technical scheme, the weight reducing holes can reduce the overall weight of the tension plate.
The invention is further provided with: the outer surface of the main shaft is provided with a chromium plating layer.
By adopting the technical scheme, the chromium coating can improve the wear resistance and corrosion resistance of the surface of the main shaft and prolong the service life of the main shaft.
Another object of the present invention is to provide a pile replacement pile, in which the impact force generated by the pile hammer is buffered during pile driving, so as to avoid damage to the pile, and in which the operator can pull out the pile after pile replacement by pulling upward if necessary, so as to improve the convenience of the construction of the submarine pile foundation.
The technical aim of the invention is realized by the following technical scheme:
The pile replacing device comprises a pile replacing main body, wherein any pile splicing device is fixedly arranged at the lower end of the pile replacing main body.
Through adopting above-mentioned technical scheme, in the use, replace between pile and the tubular pile through pile extension ware realization firm connection, can guarantee the tubular pile and replace keeping coaxial between the pile when the pile, guarantee the construction precision of tubular pile. The pile hammer performs hammering operation on the alternate pile at the upper end of the alternate pile, and the alternate pile uniformly transfers the load output by the pile hammer to the pipe pile so as to avoid the damage of the pipe pile in the construction process. When the construction of the pipe pile is changed to be necessary and the well-beaten pipe pile is required to be pulled out, the pipe pile can be pulled out rapidly and conveniently by pulling upwards to replace piling, and the construction efficiency is effectively improved.
In summary, the beneficial technical effects of the invention are as follows:
(1) The tensioning plate can move in a direction away from the main shaft and is abutted against the inner wall of the pipe pile in the use process, so that the pipe pile is tightly connected with the pile splicing device, the pipe pile is ensured to be coaxial with a pile replacement in the pile driving process, and the driven pipe pile is conveniently pulled out when necessary;
(2) The self-locking inclined plane can form self-locking with the tensioning plate, so that continuous pressure is ensured between the tensioning plate and the inner wall of the tubular pile in the use process, and the use reliability of the pile splicing device is ensured;
(3) According to the pile extension device, the reset spring can pull the tension plate to retract after the pile extension device loosens the pipe pile, so that the pile extension device is convenient to use, and the practicability of the pile extension device is further improved.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a fixed guide holder according to a first embodiment of the present invention;
FIG. 3 is a cross-sectional view of the fixed guide holder of FIG. 2 taken along the midline of the guide slot, primarily embodying the structure of the self-locking ramp;
FIG. 4 is a schematic view of the structure of a tension plate in the first embodiment;
fig. 5 is a schematic overall structure of the second embodiment.
Reference numerals: 1. replacing the pile driving main body; 2. fixing a guide seat; 3. a main shaft; 4. an oil cylinder; 5. a movable guide seat; 6. A guide groove; 7. self-locking inclined planes; 8. a tensioning plate; 9. a mating surface; 10. a lightening hole; 11. expanding boots; 12. biting teeth; 13. A return spring; 14. and a guide frame.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying examples.
Example 1:
referring to fig. 1, a pile extension device comprises a fixed guide seat 2 which is connected with a pile replacement main body 1 through a flange, and is in a circular truncated cone structure in combination with fig. 2, wherein a main shaft 3 with a tubular structure is coaxially and fixedly arranged on the fixed guide seat 2, the main shaft 3 penetrates through the fixed guide seat 2, and a wear-resistant and corrosion-resistant chromium plating layer is formed on the surface of the main shaft 3 through chromium plating. One end of the main shaft 3 far away from the fixed guide seat 2 is sleeved with a movable guide seat 5 sliding along the axis direction of the main shaft 3, the movable guide seat 5 is also in a round table structure, and the smaller ends of the fixed guide seat 2 and the movable guide seat 5 are close to each other. The side of the fixed guide seat 2, which is far away from the movable guide seat 5, is fixedly provided with an oil cylinder 4 through a flange, a piston rod of the oil cylinder 4 penetrates through the main shaft 3, and the piston rod penetrates out of one end of the main shaft 3, which is far away from the fixed guide seat 2, and is fixedly connected with the movable guide seat 5 through the flange.
Referring to fig. 2 and 3, six pairs of guide grooves 6 with inclined bottoms are formed on the movable guide seat 5 and the fixed guide seat 2, the inclined direction of the bottoms of the guide grooves 6 is that one side far away from each other of the movable guide seat 5 or the fixed guide seat 2 points to one side close to each other and deviates in the direction close to the axis of the movable guide seat 5 or the fixed guide seat 2, self-locking inclined planes 7 are formed at the bottoms of one side far away from each pair of guide grooves 6, and the gradient of the self-locking inclined planes 7 is smaller than the original gradient of the bottoms of the guide grooves 6. The tensioning plates 8 are embedded in each pair of guide grooves 6, and a plurality of weight reducing holes 10 are formed in the tensioning plates 8 by combining with fig. 4, wherein the two ends of one side of each tensioning plate 8 close to the main shaft 3 are respectively formed with a fold-line-shaped matching surface 9. In the process that the movable guide seat 5 moves towards the direction close to the fixed guide seat 2, the tensioning plate 8 is matched with the original groove bottom of the guide groove 6 in a sliding way at first, so that the tensioning plate 8 has enough travel, and the tensioning efficiency of the tensioning plate 8 is ensured; after the tensioning plate 8 slides onto the self-locking inclined plane 7 along the original groove bottom of the guide groove 6, the self-locking inclined plane 7 can form self-locking with the tensioning plate 8. And a reset spring 13 is fixedly connected between each tensioning plate 8 and the main shaft 3 and between each tensioning plate 8 and the fixed guide seat 2, and the reset spring 13 can ensure that the tensioning plate 8 can retract and reset automatically when the pile connector loosens the pipe pile. The piston rod end of the oil cylinder 4 is fixedly provided with a guide frame 14 for guiding the pile extension device to be inserted into the tubular pile.
Referring to fig. 4, two tension shoes 11 are fixedly arranged on one side of each tension plate 8 far away from the main shaft 3 through bolts, one side of each tension shoe 11 far away from the tension plate 8 is of an arc surface structure and is formed with strip-shaped biting teeth 12, and the surfaces of the biting teeth 12 are subjected to high-frequency quenching treatment to form a quenching layer with high wear resistance. The biting teeth 12 bite onto the inner wall of the pipe pile during tensioning.
The working principle of the embodiment is as follows: in the use process, a site operator firstly inserts the pile extension device into the upper port of the pipe pile, then starts the oil cylinder 4 to enable the movable guide seat 5 to move towards the direction close to the fixed guide seat 2, the tensioning plate 8 is extruded by the bottoms of the guide grooves 6 with two inclined sides in the guide grooves 6 to move towards the direction far away from the main shaft 3, the tensioning shoes 11 on the tensioning plate 8 are abutted to the inner wall of the pipe pile and keep necessary pressure with the inner wall of the pipe pile, and at the moment, stable connection is formed between the pile extension device and the pipe pile.
Example 2:
The pile replacing pile comprises a pile replacing main body 1, wherein a pile splicing device in the embodiment 1 is arranged at the lower end of the pile replacing main body 1, and one side of a movable guide seat 5 of a fixed guide seat 2 of the pile splicing device is fixedly connected with the lower end of the pile replacing pile through a flange.
The working principle of the embodiment is as follows: and in the piling process, the impact force of the piling hammer is buffered and uniformly transferred to the pipe pile instead of piling, so that the pipe pile is prevented from being damaged. The pile is stably connected with the pipe pile through the pile extension device, so that the pipe pile and the pile replacement are coaxial during pile driving, and the construction precision of the pipe pile is guaranteed. Meanwhile, the pile pulling device can pull out the driven pipe pile rapidly and conveniently by pulling upwards to replace pile driving under the necessary condition, is convenient to use, and is beneficial to saving cost and improving construction efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (6)
1. Pile extension device, including fixed guide holder (2), its characterized in that: the fixed guide seat (2) is fixedly provided with a tubular main shaft (3), the fixed guide seat (2) is fixedly provided with an oil cylinder (4), a piston rod end of the oil cylinder (4) penetrates through the main shaft (3) and is fixedly connected with a movable guide seat (5), and the movable guide seat (5) is in sliding fit with the main shaft (3); a plurality of pairs of guide grooves (6) with inclined bottoms are formed in the fixed guide seat (2) and the movable guide seat (5), a tensioning plate (8) is embedded in each pair of guide grooves (6), and the tensioning plate (8) is in sliding fit with the bottoms of the guide grooves (6);
The bottoms of the guide grooves (6) are respectively provided with a self-locking inclined surface (7), the self-locking inclined surfaces (7) are positioned on one side of each pair of the guide grooves (6) away from each other, and the gradient of the self-locking inclined surfaces (7) is smaller than that of the bottoms of the guide grooves (6); two ends of the tensioning plate (8) are respectively provided with a fold line-shaped matching surface (9), and the matching surfaces (9) are in sliding fit with the bottoms of the guide grooves (6) and the self-locking inclined surfaces (7);
A plurality of reset springs (13) are fixedly connected between the main shaft (3) and the tensioning plate (8), between the fixed guide seat (2) and the tensioning plate (8) and between the movable guide seat (5) and the tensioning plate (8);
A plurality of expansion shoes (11) are fixedly arranged on one side, far away from the main shaft (3), of the expansion plates (8), and clamping teeth (12) are formed on one surface, in contact with the tubular pile, of each expansion shoe (11).
2. A pile extension apparatus according to claim 1, wherein: the surface of the clenching teeth (12) is provided with a quenching layer.
3. A pile extension apparatus according to claim 1, wherein: one side of the movable guide seat (5) far away from the fixed guide seat (2) is fixedly provided with a guide frame (14) for guiding the pile extension device to be inserted into the tubular pile.
4. A pile extension apparatus according to claim 1, wherein: a plurality of lightening holes (10) are formed in the tensioning plate (8).
5. A pile extension apparatus according to claim 1, wherein: the outer surface of the main shaft (3) is provided with a chromium plating layer.
6. A replacement pile driver, characterized in that: the pile driver comprises a pile replacement main body (1), wherein the pile extension device as claimed in any one of claims 1-5 is fixedly arranged at the lower end of the pile replacement main body (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249135.1A CN113006118A (en) | 2021-03-08 | 2021-03-08 | Pile extension device and pile replacement pile using same |
| CN2021102491351 | 2021-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114000526A CN114000526A (en) | 2022-02-01 |
| CN114000526B true CN114000526B (en) | 2024-06-25 |
Family
ID=76407804
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249135.1A Withdrawn CN113006118A (en) | 2021-03-08 | 2021-03-08 | Pile extension device and pile replacement pile using same |
| CN202122903672.1U Active CN216379615U (en) | 2021-03-08 | 2021-11-24 | Pile extension device and pile replacement pile using same |
| CN202111401939.5A Active CN114000526B (en) | 2021-03-08 | 2021-11-24 | Pile extension device and alternate pile driving using same |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249135.1A Withdrawn CN113006118A (en) | 2021-03-08 | 2021-03-08 | Pile extension device and pile replacement pile using same |
| CN202122903672.1U Active CN216379615U (en) | 2021-03-08 | 2021-11-24 | Pile extension device and pile replacement pile using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN113006118A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006118A (en) * | 2021-03-08 | 2021-06-22 | 天津派浦澜能源科技有限公司 | Pile extension device and pile replacement pile using same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216379615U (en) * | 2021-03-08 | 2022-04-26 | 天津派浦澜能源科技有限公司 | Pile extension device and pile replacement pile using same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0659941B1 (en) * | 1993-12-20 | 1999-04-28 | Beheersmaatschappij Verstraeten B.V. | Piling apparatus adapted to be provided in a tube |
| US5423633A (en) * | 1993-12-23 | 1995-06-13 | Beheersmaatschappij Verstraeten B.V. | Piling apparatus adapted to be provided in a tube |
| CN204418182U (en) * | 2015-01-19 | 2015-06-24 | 山东海盛海洋工程集团有限公司 | For piling |
| CN105401567B (en) * | 2015-10-23 | 2017-07-11 | 大连大金马基础建设有限公司 | Dry method broken stone pile pile-forming device |
| CN206173964U (en) * | 2016-10-21 | 2017-05-17 | 福建省工业设备安装有限公司 | Vertical vertical location pile extension hydraulic adjusting device of pile driver tubular pile |
-
2021
- 2021-03-08 CN CN202110249135.1A patent/CN113006118A/en not_active Withdrawn
- 2021-11-24 CN CN202122903672.1U patent/CN216379615U/en active Active
- 2021-11-24 CN CN202111401939.5A patent/CN114000526B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216379615U (en) * | 2021-03-08 | 2022-04-26 | 天津派浦澜能源科技有限公司 | Pile extension device and pile replacement pile using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114000526A (en) | 2022-02-01 |
| CN216379615U (en) | 2022-04-26 |
| CN113006118A (en) | 2021-06-22 |
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