CN108193684A - Cast-in-situ bored pile pile crown detaches removing method - Google Patents
Cast-in-situ bored pile pile crown detaches removing method Download PDFInfo
- Publication number
- CN108193684A CN108193684A CN201711364256.0A CN201711364256A CN108193684A CN 108193684 A CN108193684 A CN 108193684A CN 201711364256 A CN201711364256 A CN 201711364256A CN 108193684 A CN108193684 A CN 108193684A
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- pile
- pile crown
- main reinforcement
- crown
- removing method
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- 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)
- 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 present invention relates to a kind of hole pouring pile pile crowns to detach removing method, including step 1：Pile crown reinforcing bar is isolated：After pile body pore-forming, installation PVC disrance sleeves in main reinforcement, ultrasound detection pipe and Grouting Pipe are vertically placed more than design of pile top absolute altitude, swelling agent is sprayed into from its base opening, and shut set base opening with band, filler is poured into casing, it fills to the rear sleeve doubling suitable for reading of main reinforcement top and shuts, and casing discount flattening iron wire and main reinforcement top are bound securely；Two：Pile crown integrally blocks：After excavation of foundation pit, cut stake face bore perpendicular to pile body postpone a circumferential direction be uniformly distributed brill four bore division holes；Three：Pile crown removes：Hangs muscle and main reinforcement are disconnected in Hydraulic splitter applies press process, four, top hangs muscle is formed a branch of and can handling appointed place higher than main reinforcement top certain distance as suspension centre, the vertical-lift of pile crown entirety after being locked or welded by the use of lockset.Pile crown separation of the present invention removes quick, the cost-effective and duration.
Description
Technical field
The present invention relates to a kind of pile crowns to detach removing method, specifically cast-in-situ bored pile pile crown separation removing method.
Background technology
At present, the cast-in-situ bored pile foundation construction form more ripe as a kind of technique, since it is simple using equipment,
It is easy to operate, it is widely applied in the pile foundation constructions such as skyscraper, high-rise building and large bridge at present.But in reality
Work progress in, design of pile top absolute altitude cuts link with upper bit and occupies more time, labour after forming pile, influence
Foundation construction progress, and being abolished using big machinery influences pile quality, it is easy to there is a series of problems, such as broken pile.
Invention content
The defects of the present invention is directed to overcome the prior art, provides a kind of cast-in-situ bored pile pile crown separation removing method, operation
Simplicity, pile crown separation remove quick, the cost-effective and duration.
In order to solve the above-mentioned technical problem, the invention is realized in this way：
A kind of cast-in-situ bored pile pile crown detaches removing method, it is characterised in that it includes the following steps：
Step 1：Pile crown reinforcing bar is isolated：
After pile body pore-forming, at the top of pile body steel reinforcement cage at decentralization to aperture, main reinforcement, ultrasound are vertically placed more than design of pile top absolute altitude
PVC disrance sleeves in detection pipe and Grouting Pipe are installed, swelling agent is sprayed into, and set base opening is shut with band from its base opening, then from its
Top opening pours into filler into casing, fills to the rear sleeve doubling suitable for reading of main reinforcement top and shuts, and by casing discount flattening iron wire
Secured with the binding of main reinforcement top, the control of discount length is in 200-300mm, conduit liter when preventing steel reinforcement cage decentralization, concreting
Drop hangs casing；
Step 2：Pile crown integrally blocks：
After excavation of foundation pit, cut stake face bore perpendicular to pile body postpone a circumferential direction be uniformly distributed brill four bore division holes, using liquid
Pressure splitter is inserted into division hole and blocks pile crown；
Step 3：Pile crown removes：
Hangs muscle and main reinforcement are disconnected in Hydraulic splitter applies press process, using steel reinforcement cage hanging steel bar secondary use, by top
Four hangs muscles formed it is a branch of and after being locked or welded by the use of lockset as suspension centre, the vertical-lift of pile crown entirety is certain higher than main reinforcement top
Distance can handling appointed place.
The cast-in-situ bored pile pile crown separation removing method, it is characterised in that：Division hole depth described in step 2
For 200mm, a diameter of 50mm.
The cast-in-situ bored pile pile crown separation removing method, it is characterised in that：Filler described in step 1 is sand
Or granular polystyrene.
The beneficial effects of the invention are as follows：Easy to operate, pile crown separation removes quickly, and do mechanization operation is more, greatly saves
Cost, duration etc..
Description of the drawings
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is diagrammatic cross-section at A-A in Fig. 1.
Specific embodiment
As shown in Figure 1, 2：A kind of cast-in-situ bored pile pile crown detaches removing method, it includes the following steps：
Step 1：Pile crown reinforcing bar is isolated：
After pile body pore-forming, at the top of pile body steel reinforcement cage at decentralization to aperture, main reinforcement 1, super is vertically placed in more than 5 design of pile top absolute altitude
PVC disrance sleeves 2 on sound detection pipe and Grouting Pipe are installed, swelling agent is sprayed into from its base opening, and set base opening is shut with band, then from
Its top opening pours into filler into casing 2, and the filler is husky or granular polystyrene；It fills suitable for reading to 1 top rear sleeve 2 of main reinforcement
Doubling is shut, and 2 discount flattening iron wire of casing and 1 top of main reinforcement are bound securely, and discount length is controlled in 200-300mm,
Prevent conduit lifting when steel reinforcement cage decentralization, concreting from hanging casing；
Step 2：Pile crown integrally blocks：
After excavation of foundation pit, cut stake face bore perpendicular to pile body postpone a circumferential direction be uniformly distributed brill four bore division holes 4, divide hole
4 depth are 200mm, a diameter of 50mm；Division hole is inserted into using Hydraulic splitter and blocks pile crown；
Step 3：Pile crown removes：
Hangs muscle and main reinforcement are disconnected in Hydraulic splitter applies press process, using 3 secondary use of steel reinforcement cage hanging steel bar, by top
Four hangs muscles 3 form a branch of and are higher than 1 top one of main reinforcement as suspension centre, the vertical-lift of pile crown entirety after being locked or welded by the use of lockset
Set a distance can handling appointed place.
Claims (3)
1. a kind of cast-in-situ bored pile pile crown detaches removing method, it is characterised in that it includes the following steps：
Step 1：Pile crown reinforcing bar is isolated：
After pile body pore-forming, at the top of pile body steel reinforcement cage at decentralization to aperture, main reinforcement, ultrasound are vertically placed more than design of pile top absolute altitude
PVC disrance sleeves in detection pipe and Grouting Pipe are installed, swelling agent is sprayed into, and set base opening is shut with band from its base opening, then from its
Top opening pours into filler into casing, fills to the rear sleeve doubling suitable for reading of main reinforcement top and shuts, and by casing discount flattening iron wire
Secured with the binding of main reinforcement top, the control of discount length is in 200-300mm, conduit liter when preventing steel reinforcement cage decentralization, concreting
Drop hangs casing；
Step 2：Pile crown integrally blocks：
After excavation of foundation pit, cut stake face bore perpendicular to pile body postpone a circumferential direction be uniformly distributed brill four bore division holes, using liquid
Pressure splitter is inserted into division hole and blocks pile crown；
Step 3：Pile crown removes：
Hangs muscle and main reinforcement are disconnected in Hydraulic splitter applies press process, using steel reinforcement cage hanging steel bar secondary use, by top
Four hangs muscles formed it is a branch of and after being locked or welded by the use of lockset as suspension centre, the vertical-lift of pile crown entirety is certain higher than main reinforcement top
Distance can handling appointed place.
2. cast-in-situ bored pile pile crown according to claim 1 detaches removing method, it is characterised in that：Described in step 2
Division hole depth is 200mm, a diameter of 50mm.
3. cast-in-situ bored pile pile crown according to claim 2 detaches removing method, it is characterised in that：Described in step 1
Filler is husky or granular polystyrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364256.0A CN108193684A (en) | 2017-12-18 | 2017-12-18 | Cast-in-situ bored pile pile crown detaches removing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711364256.0A CN108193684A (en) | 2017-12-18 | 2017-12-18 | Cast-in-situ bored pile pile crown detaches removing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193684A true CN108193684A (en) | 2018-06-22 |
Family
ID=62576944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711364256.0A Pending CN108193684A (en) | 2017-12-18 | 2017-12-18 | Cast-in-situ bored pile pile crown detaches removing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108193684A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629557A (en) * | 2018-12-18 | 2019-04-16 | 五冶集团上海有限公司 | A kind of cast-in-situ bored pile pile crown isolating device and its application method |
| CN110158581A (en) * | 2019-05-30 | 2019-08-23 | 武汉中力岩土工程有限公司 | Pile base construction method |
| CN110185037A (en) * | 2019-06-27 | 2019-08-30 | 中铁五局集团建筑工程有限责任公司 | A kind of bored concrete pile is without mechanical broken pile head method and structure |
Citations (6)
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|---|---|---|---|---|
| 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 |
| CN102587380A (en) * | 2012-02-08 | 2012-07-18 | 湖南省第二工程有限公司 | Construction method for wholly removing drilling 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 |
| CN104480931A (en) * | 2014-12-10 | 2015-04-01 | 大连三川建设集团股份有限公司 | Fast file head removing method for mechanical pore forming pouring pile |
| 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 |
| 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 |
-
2017
- 2017-12-18 CN CN201711364256.0A patent/CN108193684A/en active Pending
Patent Citations (6)
| 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 |
| CN102587380A (en) * | 2012-02-08 | 2012-07-18 | 湖南省第二工程有限公司 | Construction method for wholly removing drilling 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 |
| CN104480931A (en) * | 2014-12-10 | 2015-04-01 | 大连三川建设集团股份有限公司 | Fast file head removing method for mechanical pore forming pouring pile |
| 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 |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109629557A (en) * | 2018-12-18 | 2019-04-16 | 五冶集团上海有限公司 | A kind of cast-in-situ bored pile pile crown isolating device and its application method |
| CN110158581A (en) * | 2019-05-30 | 2019-08-23 | 武汉中力岩土工程有限公司 | Pile base construction method |
| CN110185037A (en) * | 2019-06-27 | 2019-08-30 | 中铁五局集团建筑工程有限责任公司 | A kind of bored concrete pile is without mechanical broken pile head method and structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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| RJ01 | Rejection of invention patent application after publication |