CN102493434B - Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile - Google Patents
Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile Download PDFInfo
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- CN102493434B CN102493434B CN201110384951.XA CN201110384951A CN102493434B CN 102493434 B CN102493434 B CN 102493434B CN 201110384951 A CN201110384951 A CN 201110384951A CN 102493434 B CN102493434 B CN 102493434B
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Abstract
The invention relates to a construction method for integrally and quickly hoisting and removing the pile head of a bored cast-in-place pile. The method specifically comprises the following steps: when a reinforcement cage is processed and manufactured, ensuring that a main reinforcement on the pile head is not bent; and a protecting tube is sheathed on each main reinforcement; when the reinforcement is installed, surrounding a steel wire rope sheathed with a plastic hose on the elevation position of a design pile; when the bored cast-in-place pile is filled with concrete, embedding a reinforcement hand ring in advance; after a foundation pit is dug on a proper position, hoisting the steel wire rope sheathed with a plastic hose by an excvavtor to girdle reinforcement protection layer concrete; along the girdling position, symmetrically and horizontally inserting and biting steel wedge blocks to separate the pile head and the pile body; and directly hoisting by a crane to remove the pile head. According to the construction method for integrally and quickly hoisting and removing the pile head of a bored cast-in-place pile, the modes of protecting pile foundation reinforcement, improving the pile head processing efficiency and clearing the pile head are innovated to effectively prevent from damaging the reinforcement and the pile body in the construction process, the efficiency is improved, and the project quality is guaranteed.
Description
Technical field
The present invention relates to bridge drilling stake filling pile construction, is that a kind of bored pile pile crown Integral quick hoisting is got the construction method of removing specifically.
Background technology
In existing bridge drilling stake filling pile construction; current conventional pile crown cuts method and is: be manually aided with small machine and cut; or to pile crown, adopt abrasive machine to carry out ring cutting in design elevation position; then artificial chisel is except the cover concrete of super envelope pile crown; main muscle is peeled off to concrete from side direction, then pile crown concrete piecemeal is cleared up.Existing these pile crowns cut method and have the following disadvantages:
1, cut pile crown and can cause bending damage to reinforcing bar;
The following pile body reinforcement cover of easy damaged cushion cap concrete when 2, pile crown cuts, weakens the connection between pile foundation and cushion cap;
3, easily cause the following pile body reinforcement cover of cushion cap cracking or peel off, burying the disease of main muscle corrosion and be difficult to examination and make up;
4, the pile crown processing time long, cause the foundation pit construction cycle long, precipitation and protection, artificial, machinery expenses is high.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide a kind of bored pile pile crown Integral quick hoisting to get the construction method of removing, object is to solve pile crown long processing period, the main muscle of easy damaged and the concrete problem of main muscle external protection.
For reaching above object, the technical scheme that the present invention takes is:
Bored pile pile crown Integral quick hoisting is got a construction method of removing, and it is characterized in that, its concrete steps are as follows:
Step 1, reinforcing cage processing: during reinforcing cage processing and fabricating, the main muscle 1 that pile crown stretches in cushion cap does not bend, keeping parallelism state, and be inserted in protection tube 2 on every main muscle, make not bond between pile crown reinforcing bar and the concrete of perfusion;
Step 3, bored pile perfusion: when bored pile carries out filling concrete, embedded reinforcement suspension ring 4 in advance;
Step 6, along ring cutting position, symmetrical horizontal inserted to play gad piece 5, makes pile crown separation with pile body;
Step 7, directly slings and removes pile crown by loop wheel machine entirety.
On the basis of technique scheme, described protection tube 2 is foamed pipe, or is sponge pipe or for mao bamboon.
On the basis of technique scheme, described reinforcing bar suspension ring 4 are for meeting the reinforcing bar suspension ring of pile crown integral hoisting force request at pile crown concrete embedded set.
On the basis of technique scheme, directly by loop wheel machine entirety, sling and remove after pile crown, pile crown end face is carried out after manual amendment, enter next procedure construction.
Bored pile pile crown Integral quick hoisting of the present invention is got the construction method of removing; in protection pile foundation reinforcing bar, raising pile crown treatment effeciency, pile crown reset mode, innovate; this construction method can effectively solve the damage to reinforcing bar and pile body in work progress; raise the efficiency, guarantee workmanship.
The invention has the beneficial effects as follows:
1, make main muscle parallel, do not bend, and nothing bonding between realization and concrete, entirety upwards vertical lifting departs from pile body, effectively avoids the damage to reinforcing bar in pile crown processing procedure;
2, pile crown upwards entirety hang out, pile concrete is not impacted or is damaged, guarantee the connection between pile foundation and cushion cap.
3, operation is simple, and efficiency of construction is high.
4, reduced the input of construction equipment, flexible pipe, old wire rope can reuse, and the materials such as foam sleeve can be gathered materials on the spot, and substitute is many, can effectively reduce costs.
5, construction noise and dust reduce greatly, and construction environment is improved, and effectively protect constructor's health.
Accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 construction schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The processing of bored pile pile crown is an important procedure of Bridge Pile Foundation Construction, and Traditional Man cuts method length consuming time, and pile body reinforcing bar and topping are easily destroyed, once pile body cracking, the dew muscle below cushion cap bottom surface will have a strong impact on structural safety and durability.
As shown in Figure 1, bored pile pile crown Integral quick hoisting of the present invention is got the construction method of removing, and its concrete steps are as follows:
Step 1, reinforcing cage processing: during reinforcing cage processing and fabricating, the main muscle 1 that pile crown stretches in cushion cap does not bend, keeping parallelism state, and be inserted in protection tube 2 on every main muscle, make not bond between pile crown reinforcing bar and the concrete of perfusion;
Described protection tube 2 is foamed pipe, or is sponge pipe or for mao bamboon, also can gather materials on the spot according to actual conditions, as long as can guarantee not bond between pile crown reinforcing bar and the concrete of perfusion, material is not limit;
Step 3, bored pile perfusion: when bored pile carries out filling concrete, embedded reinforcement suspension ring 4 in advance;
At pile crown concrete embedded set, meet the reinforcing bar suspension ring of pile crown integral hoisting force request, while processing for pile crown as the use of hanger (suspension centre);
Along with excavator plays hanging sleeve, there is the wire rope of plastic flexible pipe, around the wire rope automatic ring of pile crown, to peeling off reinforcement cover concrete, reach " ring cutting " target;
Step 6, along ring cutting position, symmetrical horizontal inserted to play gad piece 5, makes pile crown separation with pile body; Utilize the characteristic that concrete tensile strength is extremely low, by the horizontal inserted to play gad of symmetry piece, can more easily make pile crown separation with pile body;
Step 7, directly slings and removes pile crown by loop wheel machine entirety.Pile crown end face is carried out after manual amendment, enter next procedure construction.
Bored pile pile crown Integral quick hoisting of the present invention is got the construction method of removing, and to covering foamed pipe (or sponge pipe or mao bamboon) without the main muscle cover of pile crown of bending, makes it with concrete without bonding; At main muscle, curling cover outward has the old wire rope of flexible pipe to realize " ring cutting "; In stake, push up pre-buried hanger and realize integral hoisting taking-up, solve pile crown fast processing, avoid pile damage problem.It is simple that the present invention has constructing operation, and construction quality is high, cost is low, work efficiency advantages of higher, is easy to promote.
The content not being described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. bored pile pile crown Integral quick hoisting is got a construction method of removing, and it is characterized in that, its concrete steps are as follows:
Step 1, reinforcing cage processing: during reinforcing cage processing and fabricating, the main muscle (1) that pile crown stretches in cushion cap does not bend, keeping parallelism state, and on every main muscle, be inserted in protection tube (2), make not bond between pile crown reinforcing bar and the concrete of perfusion;
Step 2, reinforcement installation: when reinforcement installation, need accurately to control reinforcing cage absolute altitude, and in a design stake top mark eminence, around and fix a cover and have the wire rope (3) of plastic flexible pipe, have the fag end of the wire rope of plastic flexible pipe to be placed in outside concrete in cover;
Step 3, bored pile perfusion: when bored pile carries out filling concrete, embedded reinforcement suspension ring (4) in advance;
Step 4, excavation of foundation pit;
Step 5, after excavation of foundation pit is in place, with excavator, playing hanging sleeve has the wire rope of plastic flexible pipe, and wire rope automatic ring is to realizing reinforcement cover concrete " ring cutting ";
Step 6, along ring cutting position, symmetrical horizontal inserted to play gad piece (5), makes pile crown separation with pile body;
Step 7, directly slings and removes pile crown by loop wheel machine entirety.
2. bored pile pile crown Integral quick hoisting as claimed in claim 1 is got the construction method of removing, and it is characterized in that: described protection tube (2) is foamed pipe, or is sponge pipe or for mao bamboon.
3. bored pile pile crown Integral quick hoisting as claimed in claim 1 is got the construction method of removing, and it is characterized in that: described reinforcing bar suspension ring (4) are for meeting the reinforcing bar suspension ring of pile crown integral hoisting force request at pile crown concrete embedded set.
4. bored pile pile crown Integral quick hoisting as claimed in claim 1 is got the construction method of removing, and it is characterized in that: directly by loop wheel machine entirety, sling and remove after pile crown, pile crown end face is carried out after manual amendment, enter next procedure construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110384951.XA CN102493434B (en) | 2011-11-28 | 2011-11-28 | Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110384951.XA CN102493434B (en) | 2011-11-28 | 2011-11-28 | Construction method for integrally and quickly hoisting and removing pile head of bored cast-in-place pile |
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| CN102493434A CN102493434A (en) | 2012-06-13 |
| CN102493434B true CN102493434B (en) | 2014-04-16 |
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| CN102926380A (en) * | 2012-11-20 | 2013-02-13 | 中铁十九局集团第三工程有限公司 | Bridge cast-in-place pile chiseling-free pile head and construction method thereof |
| CN103266612B (en) * | 2013-06-06 | 2015-07-01 | 大连大金马基础建设有限公司 | Pile splicing anchor bar protecting frame |
| CN104234038A (en) * | 2014-03-03 | 2014-12-24 | 王磊 | Bored concrete pile construction technology without breaking of pile head |
| CN105178318B (en) * | 2014-05-30 | 2017-06-30 | 中国二十冶集团有限公司 | A kind of steel pipe downcast pipe well removal method |
| CN104343115B (en) * | 2014-11-13 | 2016-08-24 | 中交隧道工程局有限公司 | A kind of pile foundation pile crown entirety abolishes structures and methods |
| CN104727306A (en) * | 2015-03-19 | 2015-06-24 | 中交二航局第三工程有限公司 | Cast-in place pile pouring and pile head cutting-off method |
| CN105297729B (en) * | 2015-11-23 | 2017-12-01 | 中国葛洲坝集团第六工程有限公司 | Bridge pile foundation pile head breaking device and method |
| CN105350524A (en) * | 2015-12-04 | 2016-02-24 | 中交隧道工程局有限公司 | Steel reinforcement cage structure, concrete filling pile structure and construction method of concrete filling pile structure |
| CN106120792A (en) * | 2016-08-11 | 2016-11-16 | 北京城建七建设工程有限公司 | A kind of pile foundation pile crown concrete prestripping assembly and construction method |
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| CN106400803A (en) * | 2016-10-31 | 2017-02-15 | 中国葛洲坝集团第六工程有限公司 | Integral cast-in-situ bored pile head breaking process |
| CN106400804A (en) * | 2016-11-17 | 2017-02-15 | 宁波市政工程建设集团股份有限公司 | Obstructing pulling method pile digging construction device and method |
| CN106759336A (en) * | 2016-12-19 | 2017-05-31 | 中交路桥建设有限公司 | A kind of cast-in-situ bored pile quickly abolishes pile crown construction method |
| CN107034887A (en) * | 2017-03-30 | 2017-08-11 | 河南大建桥梁钢构股份有限公司 | Bored piles headring cuts construction method |
| CN106958245A (en) * | 2017-04-07 | 2017-07-18 | 中交二公局第工程有限公司 | The quick structure and method for abolishing concrete pile head |
| CN106968251A (en) * | 2017-05-26 | 2017-07-21 | 中交第二航务工程局有限公司 | A kind of concrete filling pile head abolishes device and its construction method |
| CN107542092A (en) * | 2017-08-18 | 2018-01-05 | 广州市公路工程公司 | High efficiency honeycomb method broken pile head construction technology |
| CN108104116A (en) * | 2018-01-19 | 2018-06-01 | 中建筑港集团有限公司 | A kind of filling pile head processing method and Quick Release pile crown bored concrete pile |
| CN108487238A (en) * | 2018-05-24 | 2018-09-04 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of filling pile head processing unit and its construction method |
| CN110468842B (en) * | 2019-08-14 | 2024-06-18 | 中交第二公路工程局有限公司 | Breaking structure and breaking method of concrete pile head |
| CN112030960A (en) * | 2020-07-22 | 2020-12-04 | 中铁十局集团第一工程有限公司 | Construction method of separable fulcrum pile |
| CN113622427B (en) * | 2021-07-06 | 2023-03-28 | 中国二十冶集团有限公司 | Auxiliary device for chiseling pile head and construction method for chiseling pile head |
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Owner name: GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU Free format text: FORMER OWNER: CHINA ZHONGTIE MAJOR BRIDGE ENGINEERING CO., LTD. Effective date: 20150302 Owner name: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU Free format text: FORMER OWNER: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU GROUP GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU Effective date: 20150302 |
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Effective date of registration: 20150302 Address after: 430050 Hanyang Road, Hanyang District, Hubei, No. 38, No. Patentee after: Group Co., Ltd., Zhongtie Daqiao Bureau Patentee after: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group Address before: 430074 Hubei province Wuhan Dongxin East Lake New Technology Development Zone Road SBI Venture Street No. 6 Building 12 layer Patentee before: China Zhongtie Major Bridge Engineering Co., Ltd. Patentee before: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group Patentee before: Group Co., Ltd., Zhongtie Daqiao Bureau |