CN109024597A - It is a kind of to accelerate the casing and its construction method that pile crown is abolished - Google Patents

It is a kind of to accelerate the casing and its construction method that pile crown is abolished Download PDF

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Publication number
CN109024597A
CN109024597A CN201810787506.XA CN201810787506A CN109024597A CN 109024597 A CN109024597 A CN 109024597A CN 201810787506 A CN201810787506 A CN 201810787506A CN 109024597 A CN109024597 A CN 109024597A
Authority
CN
China
Prior art keywords
steel bar
pvc pipe
bar stress
hard pvc
pile crown
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.)
Pending
Application number
CN201810787506.XA
Other languages
Chinese (zh)
Inventor
滕非
郑欣家
徐鑫
董悦迎
冯雷
徐勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhong Tie Chengjian Group Co Ltd
China Railway Urban Construction Group Co Ltd
Third Engineering Co Ltd of China Railway Urban Construction Group Co Ltd
Original Assignee
Zhong Tie Chengjian Group Co Ltd
Third Engineering Co Ltd of China Railway Urban Construction Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhong Tie Chengjian Group Co Ltd, Third Engineering Co Ltd of China Railway Urban Construction Group Co Ltd filed Critical Zhong Tie Chengjian Group Co Ltd
Priority to CN201810787506.XA priority Critical patent/CN109024597A/en
Publication of CN109024597A publication Critical patent/CN109024597A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof

Abstract

The invention discloses one kind can accelerate the casing that pile crown is abolished, including steel bar stress, the outside movable sleeve of the steel bar stress is connected to hard PVC pipe, and the gap between steel bar stress and hard PVC pipe is filled with filling-foam agent, the anchorage length of the steel bar stress is 750mm, diameter is 20mm, the length of hard PVC pipe is 750mm, diameter is 40mm, filling-foam agent filling thickness is 15mm, the central axis of the steel bar stress is overlapped with the central axis of hard PVC pipe, and the end of hard PVC pipe is concordant with the holding of the end of steel bar stress, and the diameter of hard PVC pipe is two times of steel bar stress diameter.This can accelerate the casing and its construction method that pile crown is abolished; hard PVC pipe and steel bar stress are fixed by filling-foam agent, dismantle or install all extremely facilitate it is easy to operate, economically; cost of labor and time cost have been saved, while environment can have been protected.

Description

It is a kind of to accelerate the casing and its construction method that pile crown is abolished
Technical field
The present invention relates to piling Technology fields, specially a kind of to accelerate the casing and its construction party that pile crown is abolished Method.
Background technique
Pile foundation construction is very universal in China's building trade at present, and after the completion of pile foundation construction, superfilled pile crown needs broken Remove, traditional pile crown abolish greatly mostly use manually drill a blasting hole or pneumatic pick remove the methods of;However above-mentioned conventional method there are the drawbacks of More, manually drilling a blasting hole the methods of taps large labor intensity with pneumatic pick and efficiency is very low, needs the reinforcing bar of stake and concrete point From could complete, there is very big restriction to construction speed;And noise pollution can be also generated in work progress.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provide it is a kind of can accelerate casing that pile crown is abolished and Its construction method, hard PVC pipe and steel bar stress are fixed by filling-foam agent, dismantle or install all extremely facilitate operation letter It is single, economically, cost of labor and time cost are saved, while can protect to environment, can effectively solve to carry on the back The problems in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of can accelerate the casing that pile crown is abolished, including by Power reinforcing bar, the outside movable sleeve of the steel bar stress are connected to hard PVC pipe, and the gap between steel bar stress and hard PVC pipe Place is filled with filling-foam agent.
As a preferred technical solution of the present invention, the anchorage length of the steel bar stress is 750mm, and diameter is 20mm, the length of hard PVC pipe are 750mm, and diameter 40mm, filling-foam agent filling thickness is 15mm.
As a preferred technical solution of the present invention, the central axis of the steel bar stress and the center of hard PVC pipe Axis is overlapped, and the end of hard PVC pipe is concordant with the holding of the end of steel bar stress, and the diameter of hard PVC pipe is stress steel Two times of muscle diameter.
A kind of construction method for accelerating the casing that pile crown is abolished, comprising the following steps:
S1, fabrication of reinforcing cage: the bar diameter of steel bar stress and the diameter and length of anchorage length and hard PVC pipe are determined Degree, hard PVC pipe sleeve on the outside of steel bar stress, and is combined with filling-foam agent adhesive seal;
S2, pile crown are abolished: stake perfusion is completed to reach progress pile crown after a certain period of time and is abolished, with toothless saw around pile crown circumferential direction one Week cutting, depth of cut are stake main reinforcement protective layer thickness, are separated pile crown concrete with pile body with pneumatic pick external force at rings cut, Since pile crown concrete and steel bar stress are by hard PVC pipe, directly pile crown concrete vertically can be hung out.
Compared with prior art, the beneficial effects of the present invention are: the casing and its construction method that pile crown is abolished originally can be accelerated, Hard PVC pipe and steel bar stress are fixed by filling-foam agent, dismantle or install all extremely facilitate it is easy to operate, from economic angle Degree, has saved cost of labor and time cost, while can protect to environment.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is that the precast reinforced cage of the present invention installs casing schematic diagram;
Fig. 3 is that pile crown of the present invention abolishes construction schematic diagram.
In figure: 1 steel bar stress, 2 filling-foam agent, 3 hard PVC pipes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: one kind can accelerate the casing that pile crown is abolished, including stress Reinforcing bar 1, the outside movable sleeve of steel bar stress 1 are connected to hard PVC pipe 3, and the gap between steel bar stress 1 and hard PVC pipe 3 Place is filled with filling-foam agent 2, and the anchorage length of steel bar stress 1 is 750mm, and the length of diameter 20mm, hard PVC pipe 3 are 750mm, diameter 40mm, 2 filling thickness of filling-foam agent are 15mm, central axis and the hard PVC pipe 3 of steel bar stress 1 Central axis is overlapped, and the end of hard PVC pipe 3 is concordant with the holding of the end of steel bar stress 1, and the diameter of hard PVC pipe 3 It is two times of 1 diameter of steel bar stress, the present invention has been merely given as most preferred size, but is required according to practice of construction, can be with Random transform size, therefore, any simple deformation all belong to the scope of protection of the present invention, and can entirely accelerate the set that pile crown is abolished Pipe and its construction method, hard PVC pipe 3 and steel bar stress 1 are fixed by filling-foam agent, are dismantled or are installed and all extremely facilitate behaviour Make simply, economically, to have saved cost of labor and time cost, while environment can be protected.
A kind of construction method for accelerating the casing that pile crown is abolished, comprising the following steps:
S1, fabrication of reinforcing cage: the bar diameter of steel bar stress 1 and the diameter of anchorage length and hard PVC pipe 3 are determined And length, 3 sets of hard PVC pipe in 1 outside of steel bar stress, and combined with 2 adhesive seal of filling-foam agent;
S2, pile crown are abolished: stake perfusion is completed to reach progress pile crown after a certain period of time and is abolished, with toothless saw around pile crown circumferential direction one Week cutting, depth of cut are stake main reinforcement protective layer thickness, are separated pile crown concrete with pile body with pneumatic pick external force at rings cut, Since pile crown concrete and steel bar stress 1 are by hard PVC pipe 3, directly pile crown concrete vertically can be hung out.
Hard PVC pipe 3 and steel bar stress 1 of the present invention are fixed by filling-foam agent, are dismantled or are installed and all extremely facilitate behaviour Make simply, economically, to have saved cost of labor and time cost, while environment can be protected.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (4)

1. one kind can accelerate the casing that pile crown is abolished, including steel bar stress (1), it is characterised in that: outside the steel bar stress (1) Side movable sleeve is connected to hard PVC pipe (3), and the gap between steel bar stress (1) and hard PVC pipe (3) is filled with filling hair Infusion (2).
2. one kind according to claim 1 can accelerate the casing that pile crown is abolished, it is characterised in that: the steel bar stress (1) Anchorage length be 750mm, diameter 20mm, the length of hard PVC pipe (3) is 750mm, diameter 40mm, filling-foam agent (2) filling thickness is 15mm.
3. one kind according to claim 1 can accelerate the casing that pile crown is abolished, it is characterised in that: the steel bar stress (1) Central axis be overlapped with the central axis of hard PVC pipe (3), and the end of the end of hard PVC pipe (3) and steel bar stress (1) Head keeps concordant, and the diameter of hard PVC pipe (3) is two times of steel bar stress (1) diameter.
4. the construction method that one kind can accelerate the casing that pile crown is abolished, it is characterised in that: the following steps are included:
S1, fabrication of reinforcing cage: determine the bar diameter of steel bar stress (1) and the diameter of anchorage length and hard PVC pipe (3) and Length covers hard PVC pipe (3) on the outside of steel bar stress (1), and is combined with filling-foam agent (2) adhesive seal;
S2, pile crown are abolished: stake perfusion is completed to reach progress pile crown after a certain period of time and is abolished, and is cut within one week with toothless saw around pile crown circumferential direction It cuts, depth of cut is stake main reinforcement protective layer thickness, pile crown concrete separated with pile body with pneumatic pick external force at rings cut, due to Pile crown concrete and steel bar stress (1) directly can vertically be hung out pile crown concrete by hard PVC pipe (3).
CN201810787506.XA 2018-07-18 2018-07-18 It is a kind of to accelerate the casing and its construction method that pile crown is abolished Pending CN109024597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810787506.XA CN109024597A (en) 2018-07-18 2018-07-18 It is a kind of to accelerate the casing and its construction method that pile crown is abolished

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810787506.XA CN109024597A (en) 2018-07-18 2018-07-18 It is a kind of to accelerate the casing and its construction method that pile crown is abolished

Publications (1)

Publication Number Publication Date
CN109024597A true CN109024597A (en) 2018-12-18

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CN201810787506.XA Pending CN109024597A (en) 2018-07-18 2018-07-18 It is a kind of to accelerate the casing and its construction method that pile crown is abolished

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485421A (en) * 2019-09-24 2019-11-22 中国五冶集团有限公司 A kind of pile crown quickly abolishes construction technology

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102312429A (en) * 2011-07-12 2012-01-11 中铁西北科学研究院有限公司 Rapid separation and integral hoisting method for pile head of cast-in-place concrete pile
CN204343285U (en) * 2014-11-13 2015-05-20 中交隧道工程局有限公司 A kind of pile foundation pile crown entirety abolishes structure
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
CN108035342A (en) * 2017-11-28 2018-05-15 中国二十冶集团有限公司 Filling pile head construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102312429A (en) * 2011-07-12 2012-01-11 中铁西北科学研究院有限公司 Rapid separation and integral hoisting method for pile head of cast-in-place concrete pile
CN204343285U (en) * 2014-11-13 2015-05-20 中交隧道工程局有限公司 A kind of pile foundation pile crown entirety abolishes structure
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
CN108035342A (en) * 2017-11-28 2018-05-15 中国二十冶集团有限公司 Filling pile head construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485421A (en) * 2019-09-24 2019-11-22 中国五冶集团有限公司 A kind of pile crown quickly abolishes construction technology

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Application publication date: 20181218

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