CN102493434A - 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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- CN102493434A CN102493434A CN201110384951XA CN201110384951A CN102493434A CN 102493434 A CN102493434 A CN 102493434A CN 201110384951X A CN201110384951X A CN 201110384951XA CN 201110384951 A CN201110384951 A CN 201110384951A CN 102493434 A CN102493434 A CN 102493434A
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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 the whole fast hoisting of a kind of drill-pouring pile head is got the job practices of removing specifically.
Background technology
In existing bridge drilling stake filling pile construction; The pile crown method of cutting commonly used at present is: manual work is aided with small machine and cuts; Or adopt abrasive machine to carry out ring cutting to pile crown in the design elevation position; The artificial then topping concrete that cuts ultra envelope pile crown is peeled off concrete with main muscle from side direction, pile crown concrete piecemeal is cleared up again.Not enough below existing these pile crowns method that cuts exists:
1, cuts pile crown and can cause the bending damage 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 the cushion cap;
3, be prone to cause the following pile body reinforcement cover of cushion cap cracking or peel off, bury the disease of main muscle corrosion and be difficult to examination and remedy;
4, the pile crown processing time long, cause the foundation pit construction cycle long, precipitation and protection, manual work, machinery expenses are high.
Summary of the invention
To the defective that exists in the prior art, the object of the present invention is to provide the whole fast hoisting of a kind of drill-pouring pile head to get the job practices of removing, purpose is to solve pile crown long processing period, easy damaged master's muscle and the concrete problem of main muscle external protection.
For reaching above purpose, the technical scheme that the present invention takes is:
The whole fast hoisting of a kind of drill-pouring pile head is got the job practices of removing, and it is characterized in that its concrete steps are following:
Step 1, reinforcing cage processing: during the reinforcing cage processing and fabricating, the main muscle 1 that pile crown stretches in the cushion cap does not bend, and keeping parallelism state, and on every main muscle, be inserted in protection tube 2 makes between the concrete of pile crown reinforcing bar and perfusion not bond;
Step 2, reinforcement installation: when reinforcement installation, need accurately control reinforcing cage absolute altitude, and in a design stake top mark eminence, around and fixing wire rope 3 that is with plastic flexible pipe, the fag end of the wire rope that is with plastic flexible pipe is placed outside the concrete;
Step 3, bored pile perfusion: when bored pile carries out concrete spouting, shift to an earlier date embedded reinforcement suspension ring 4;
Step 4, excavation of foundation pit;
Step 5 after excavation of foundation pit is in place, is lifted by crane the wire rope that is with plastic flexible pipe with excavator, and the automatic hoop of wire rope is realized reinforcement cover concrete " ring cutting ";
Step 6, along the ring cutting position, symmetrical level is inserted and is beaten wedges 5, and pile crown is separated with pile body;
Step 7 is directly sling with loop wheel machine integral body and is removed pile crown.
On the basis of technique scheme, said protection tube 2 is a foamed pipe, or is sponge pipe or for mao bamboon.
On the basis of technique scheme, said reinforcing bar suspension ring 4 are for satisfying 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 with loop wheel machine integral body sling remove pile crown after, the pile crown end face carried out manual amendment after, promptly get into the next procedure construction.
The whole fast hoisting of drill-pouring pile head of the present invention is got the job practices of removing; On protection pile foundation reinforcing bar, raising pile crown treatment effeciency, pile crown reset mode, innovate; This job practices can effectively solve in the work progress damage to reinforcing bar and pile body; Raise the efficiency, guarantee workmanship.
The invention has the beneficial effects as follows:
1, make main muscle parallel, do not bend, and do not have bonding between realization and concrete, whole upwards vertical lifting breaks away from pile body, effectively avoids in the pile crown processing procedure damage to reinforcing bar;
2, the pile crown integral body that makes progress hangs out, and pile concrete is not impacted or damages, and guarantees the connection between pile foundation and the 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 materials such as foam sleeve can be gathered materials on the spot, and substitute is many, can effectively reduce cost.
5, construction noise and dust reduce greatly, and construction environment is improved, and effectively protect constructor's health.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 construction sketch map of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
It is an important procedure of bridge pile foundation construction that the drill-pouring pile head is handled, and traditional manual work cuts method length consuming time, and pile body reinforcing bar and topping are destroyed easily, and in a single day the pile body below the cushion cap bottom surface ftractures, reveals muscle, will have a strong impact on structural safety and durability.
As shown in Figure 1, the whole fast hoisting of drill-pouring pile head of the present invention is got the job practices of removing, and its concrete steps are following:
Step 1, reinforcing cage processing: during the reinforcing cage processing and fabricating, the main muscle 1 that pile crown stretches in the cushion cap does not bend, and keeping parallelism state, and on every main muscle, be inserted in protection tube 2 makes between the concrete of pile crown reinforcing bar and perfusion not bond;
Said protection tube 2 is a 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 the concrete of pile crown reinforcing bar and perfusion, material is not limit;
Step 2, reinforcement installation: when reinforcement installation, need accurately control reinforcing cage absolute altitude, and in a design stake top mark eminence, around and fixing wire rope 3 that is with plastic flexible pipe, the fag end of the wire rope that is with plastic flexible pipe is placed outside the concrete;
Step 3, bored pile perfusion: when bored pile carries out concrete spouting, shift to an earlier date embedded reinforcement suspension ring 4;
Satisfy the reinforcing bar suspension ring of pile crown integral hoisting force request at pile crown concrete embedded set, when being used for pile crown and handling as the usefulness of hanger (suspension centre);
Step 4, excavation of foundation pit;
Step 5 after excavation of foundation pit is in place, is lifted by crane the wire rope that is with plastic flexible pipe with excavator, and the automatic hoop of wire rope is realized reinforcement cover concrete " ring cutting ";
Along with excavator lifts by crane the wire rope that is with plastic flexible pipe, peel off the reinforcement cover concrete around the automatic hoop of the wire rope of pile crown and reach " ring cutting " target;
Step 6, along the ring cutting position, symmetrical level is inserted and is beaten wedges 5, and pile crown is separated with pile body; Utilize the extremely low characteristic of concrete tensile strength, insert through symmetrical level and beat wedges, pile crown is separated with pile body;
Step 7 is directly sling with loop wheel machine integral body and is removed pile crown.After the pile crown end face carried out manual amendment, promptly get into the next procedure construction.
The whole fast hoisting of drill-pouring pile head of the present invention is got the job practices of removing, and the pile crown master muscle cover without bending is covered foamed pipe (or sponge pipe or mao bamboon) make it not have bonding with concrete; Outside main muscle, curl the old wire rope that is with flexible pipe and realize " ring cutting "; Push up pre-buried hanger in stake and realize the integral hoisting taking-up, solve the pile crown fast processing, avoid pile body to destroy problem.It is simple that the present invention has constructing operation, and construction quality is high, low, the work efficiency advantages of higher of cost, is easy to promote.
The content of not doing in this manual to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (4)
1. the whole fast hoisting of drill-pouring pile head is got the job practices of removing, and it is characterized in that its concrete steps are following:
Step 1, reinforcing cage processing: during the reinforcing cage processing and fabricating, the main muscle (1) that pile crown stretches in the cushion cap does not bend, and keeping parallelism state, and on every main muscle, be inserted in protection tube (2) makes between the concrete of pile crown reinforcing bar and perfusion not bond;
Step 2, reinforcement installation: when reinforcement installation, need accurately control reinforcing cage absolute altitude, and in a design stake top mark eminence, around and fixing wire rope (3) that is with plastic flexible pipe, the fag end of the wire rope that is with plastic flexible pipe is placed outside the concrete;
Step 3, bored pile perfusion: when bored pile carries out concrete spouting, shift to an earlier date embedded reinforcement suspension ring (4);
Step 4, excavation of foundation pit;
Step 5 after excavation of foundation pit is in place, is lifted by crane the wire rope that is with plastic flexible pipe with excavator, and the automatic hoop of wire rope is realized reinforcement cover concrete " ring cutting ";
Step 6, along the ring cutting position, symmetrical level is inserted and is beaten wedges (5), and pile crown is separated with pile body;
Step 7 is directly sling with loop wheel machine integral body and is removed pile crown.
2. the whole fast hoisting of drill-pouring pile head as claimed in claim 1 is got the job practices of removing, and it is characterized in that: said protection tube (2) is foamed pipe, or be the sponge pipe or be mao bamboon.
3. the whole fast hoisting of drill-pouring pile head as claimed in claim 1 is got the job practices of removing, and it is characterized in that: said reinforcing bar suspension ring (4) are for satisfying the reinforcing bar suspension ring of pile crown integral hoisting force request at pile crown concrete embedded set.
4. the whole fast hoisting of drill-pouring pile head as claimed in claim 1 is got the job practices of removing, and it is characterized in that: directly with loop wheel machine integral body sling remove pile crown after, the pile crown end face carried out manual amendment after, promptly get into next procedure and construct.
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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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| 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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Cited By (22)
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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 |
| CN103266612A (en) * | 2013-06-06 | 2013-08-28 | 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 |
| CN104343115A (en) * | 2014-11-13 | 2015-02-11 | 中交隧道工程局有限公司 | Structure and method for integrally breaking pile head of pile foundation |
| 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 |
| CN105178318A (en) * | 2014-05-30 | 2015-12-23 | 中国二十冶集团有限公司 | Method for removing steel pipe downcomer well |
| CN105297729A (en) * | 2015-11-23 | 2016-02-03 | 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 |
| CN106400802A (en) * | 2016-08-24 | 2017-02-15 | 中交公局厦门工程有限公司 | Integral quick lifting method for pile head of drilled pile during pre-embedding and drilling-free ring-cutting |
| 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 |
| 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 |
| 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 |
| 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 |
| CN110468842A (en) * | 2019-08-14 | 2019-11-19 | 中交第二公路工程局有限公司 | A kind of concrete pile head abolishes structure and its restructuring bankrupt |
| 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 |
| CN113622427A (en) * | 2021-07-06 | 2021-11-09 | 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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Cited By (23)
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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 |
| CN103266612A (en) * | 2013-06-06 | 2013-08-28 | 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 |
| CN105178318A (en) * | 2014-05-30 | 2015-12-23 | 中国二十冶集团有限公司 | Method for removing steel pipe downcomer well |
| CN104343115A (en) * | 2014-11-13 | 2015-02-11 | 中交隧道工程局有限公司 | Structure and method for integrally breaking pile head of pile foundation |
| 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 |
| CN105297729A (en) * | 2015-11-23 | 2016-02-03 | 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 |
| CN106400802A (en) * | 2016-08-24 | 2017-02-15 | 中交公局厦门工程有限公司 | Integral quick lifting method for pile head of drilled pile during pre-embedding and drilling-free ring-cutting |
| 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 |
| CN110468842A (en) * | 2019-08-14 | 2019-11-19 | 中交第二公路工程局有限公司 | A kind of concrete pile head abolishes structure and its restructuring bankrupt |
| 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 |
| CN113622427A (en) * | 2021-07-06 | 2021-11-09 | 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 |