CN105586968A - Novel construction technology for removing pile heads of bored piles - Google Patents
Novel construction technology for removing pile heads of bored piles Download PDFInfo
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- CN105586968A CN105586968A CN201410573488.7A CN201410573488A CN105586968A CN 105586968 A CN105586968 A CN 105586968A CN 201410573488 A CN201410573488 A CN 201410573488A CN 105586968 A CN105586968 A CN 105586968A
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- pile crown
- offset plate
- abolished
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Abstract
The invention provides a novel construction technology for removing pile heads of bored piles. Bamboo plywood is arranged on the inner side and the outer side of a reinforcement cage, and must be fixed with main reinforcements firmly, so that the bamboo plywood is prevented from falling or sliding down into concrete of lower parts of the pile heads. Bonding between the concrete of the pile heads and the main reinforcements is avoided, when the pile heads are chiseled off after a foundation pit is excavated, the concrete is not stripped from the reinforcements, so that the chiseling speed of the pile heads is increased greatly, and construction cost is reduced. The novel construction technology for removing the pile heads of the bored piles has convenience and rapidness, namely the new technology is convenient to operate, the number of corollary equipment is small, the new technology is easily accepted by constructors, and the constructors can skillfully operate the new technology rapidly.
Description
Technical field
The present invention relates to a kind of construction technology, specifically a kind of drilled pile pile crown is abolished construction technology.
Background technology
It is to adopt the concrete of manually need being abolished to pile crown little by little to peel off that conventional borehole filling pile head is abolished, because the main muscle of part stretches in pile crown concrete, need to adopt equipment further reinforcing bar surrounding concrete to be peeled off, after reinforcing bar is all exposed, with hanging device, stake core (no-reinforcing-bar) is fractureed and sling again, this construction method, lost labor, has increased construction cost, very person has hurt the main muscle of pile foundation and pile crown concrete, and speed of application is slower. Adopt baffle method pile foundation construction, pile crown concrete and main muscle do not bond, and after excavation of foundation pit, while cutting pile crown, do not carry out reinforcing bar and concrete overburden operation, accelerate pile crown and abolish speed.
Utility model content
The object of this invention is to provide a kind of drilled pile pile crown and abolish construction technology, can address the above problem.
The present invention for achieving the above object, be achieved through the following technical solutions: a kind of drilled pile pile crown is abolished construction technology, the bamboo offset plate of steel reinforcement cage inner side and arranged outside, must with main muscle fixation, prevent that bamboo offset plate from coming off or under slide in the concrete of pile crown bottom. The height of bamboo offset plate setting is 90cm, can not go deep into pile crown bottom concrete. In the time of descending reinforcing cage, want accurate Calculation to hang the length of muscle, prevent rising of steel cage or decline.
In order further to realize object of the present invention, can also be by the following technical solutions: in the time of descending reinforcing cage, downcomer and other operations, note the protection to bamboo offset plate, preventing that bamboo offset plate from damaging increases pile crown and abolish difficulty. Pile crown should guarantee after abolishing that stake top anchors into cushion cap 10cm, and stake top mark after abolishing is high should be than the high 10cm of absolute altitude at the bottom of cushion cap, and before operation, on pile body, carries out eye-catching red paint mark abolishing, and operating personnel is handed over. Pile crown is abolished and in process, must thoroughly be removed steel reinforcement cage bamboo offset plate around, prevents that bamboo offset plate residue from building in cushion cap. Stake top after broken pile completes should be substantially smooth, and pile concrete is without destroying crack, and mechanical breaking must be reserved 5-10cm and manually repair stake, in order to avoid broken pile is too low. Slinging before pile crown, must guarantee that pile crown separates completely with pile body. In the time slinging pile crown, guarantee that the Lifting implementses such as steel wire rope do not take off, avoid security incident.
The invention has the advantages that: pile crown concrete and main muscle do not bond, after excavation of foundation pit, while cutting pile crown, do not carry out reinforcing bar and concrete overburden operation, cut speed thereby greatly accelerate pile crown, reduce construction cost. Convenient and swift property: easy to operate, corollary equipment is few, and workmen is acceptant, and can expertly operate very soon. Economy: reduced equipment, personnel's input, greatly improved the efficiency that pile crown is abolished, reduced construction cost. Pile crown reinforcing bar has the protection of bamboo offset plate, while abolishing pile crown, can be easy to make pile crown concrete to separate with pile crown reinforcing bar, makes pile foundation reinforcing bar injury-free, has guaranteed pile foundation steel bar quality. Abolish rear pile foundation end face smooth-going, attractive in appearance. The present invention also has advantages of compactness simple for structure, cheap for manufacturing cost and easy to use.
Brief description of the drawings
Fig. 1 is construction technology step schematic diagram of the present invention.
Detailed description of the invention
Drilled pile pile crown is abolished construction technology, as shown in Figure 1, the bamboo offset plate of steel reinforcement cage inner side and arranged outside, must with main muscle fixation, prevent that bamboo offset plate from coming off or under slide in the concrete of pile crown bottom. The height of bamboo offset plate setting is 90cm, can not go deep into pile crown bottom concrete. In the time of descending reinforcing cage, want accurate Calculation to hang the length of muscle, prevent rising of steel cage or decline.
In the time of descending reinforcing cage, downcomer and other operations, note the protection to bamboo offset plate, prevent that bamboo offset plate from damaging increase pile crown and abolishing difficulty. Pile crown should guarantee after abolishing that stake top anchors into cushion cap 10cm, and stake top mark after abolishing is high should be than the high 10cm of absolute altitude at the bottom of cushion cap, and before operation, on pile body, carries out eye-catching red paint mark abolishing, and operating personnel is handed over. Pile crown is abolished and in process, must thoroughly be removed steel reinforcement cage bamboo offset plate around, prevents that bamboo offset plate residue from building in cushion cap. Stake top after broken pile completes should be substantially smooth, and pile concrete is without destroying crack, and mechanical breaking must be reserved 5-10cm and manually repair stake, in order to avoid broken pile is too low. Slinging before pile crown, must guarantee that pile crown separates completely with pile body. In the time slinging pile crown, guarantee that the Lifting implementses such as steel wire rope do not take off, avoid security incident.
Pile crown concrete and main muscle do not bond, and after excavation of foundation pit, while cutting pile crown, do not carry out reinforcing bar and concrete overburden operation, cut speed thereby greatly accelerate pile crown, reduce construction cost. Convenient and swift property: easy to operate, corollary equipment is few, and workmen is acceptant, and can expertly operate very soon. Economy: reduced equipment, personnel's input, greatly improved the efficiency that pile crown is abolished, reduced construction cost. Pile crown reinforcing bar has the protection of bamboo offset plate, while abolishing pile crown, can be easy to make pile crown concrete to separate with pile crown reinforcing bar, makes pile foundation reinforcing bar injury-free, has guaranteed pile foundation steel bar quality. Abolish rear pile foundation end face smooth-going, attractive in appearance. The present invention also has advantages of compactness simple for structure, cheap for manufacturing cost and easy to use.
Technical scheme of the present invention is not restricted in the scope of embodiment of the present invention. The present invention not technology contents of detailed description is known technology.
Claims (5)
1. drilled pile pile crown is abolished construction technology, it is characterized in that: the bamboo offset plate of steel reinforcement cage inner side and arranged outside, must with main muscle fixation, prevent that bamboo offset plate from coming off or under slide in the concrete of pile crown bottom, the height of bamboo offset plate setting is 90cm, can not go deep into pile crown bottom concrete, in the time of descending reinforcing cage, want accurate Calculation to hang the length of muscle, prevent rising of steel cage or decline.
2. drilled pile pile crown according to claim 1 is abolished construction technology, it is characterized in that: in the time of descending reinforcing cage, downcomer and other operations, note the protection to bamboo offset plate, prevent that bamboo offset plate from damaging increase pile crown and abolishing difficulty.
3. drilled pile pile crown according to claim 1 is abolished construction technology, it is characterized in that: pile crown should guarantee after abolishing that stake top anchors into cushion cap 10cm, after abolishing stake top mark is high should be than the high 10cm of absolute altitude at the bottom of cushion cap, and before operation, on pile body, carry out eye-catching red paint mark abolishing, and operating personnel is handed over, pile crown is abolished and in process, must thoroughly be removed steel reinforcement cage bamboo offset plate around, prevents that bamboo offset plate residue from building in cushion cap.
4. drilled pile pile crown according to claim 1 is abolished construction technology, it is characterized in that: the stake top after broken pile completes should be substantially smooth, and pile concrete is without destroying crack, and mechanical breaking must be reserved 5-10cm and manually repair stake, in order to avoid broken pile is too low.
5. drilled pile pile crown according to claim 1 is abolished construction technology, it is characterized in that: slinging before pile crown, must guarantee that pile crown separates completely with pile body, in the time slinging pile crown, guarantee that the Lifting implementses such as steel wire rope do not take off, avoid security incident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573488.7A CN105586968A (en) | 2014-10-24 | 2014-10-24 | Novel construction technology for removing pile heads of bored piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573488.7A CN105586968A (en) | 2014-10-24 | 2014-10-24 | Novel construction technology for removing pile heads of bored piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105586968A true CN105586968A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410573488.7A Pending CN105586968A (en) | 2014-10-24 | 2014-10-24 | Novel construction technology for removing pile heads of bored piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105586968A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944246A (en) * | 2019-02-25 | 2019-06-28 | 中铁一局集团厦门建设工程有限公司 | A kind of construction method of broken pile head |
| CN111335315A (en) * | 2020-02-29 | 2020-06-26 | 广州地铁设计研究院股份有限公司 | Method for breaking underground obstacle pile |
-
2014
- 2014-10-24 CN CN201410573488.7A patent/CN105586968A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944246A (en) * | 2019-02-25 | 2019-06-28 | 中铁一局集团厦门建设工程有限公司 | A kind of construction method of broken pile head |
| CN111335315A (en) * | 2020-02-29 | 2020-06-26 | 广州地铁设计研究院股份有限公司 | Method for breaking underground obstacle pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160518 |
|
| WD01 | Invention patent application deemed withdrawn after publication |