CN101021070B - Cast-in-situ X-shaped concrete pile construction method - Google Patents
Cast-in-situ X-shaped concrete pile construction method Download PDFInfo
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- CN101021070B CN101021070B CN2007100203063A CN200710020306A CN101021070B CN 101021070 B CN101021070 B CN 101021070B CN 2007100203063 A CN2007100203063 A CN 2007100203063A CN 200710020306 A CN200710020306 A CN 200710020306A CN 101021070 B CN101021070 B CN 101021070B
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Abstract
The present invention relates to a construction method of in-situ X-shaped reinforced concrete pile. It is characterized by that the lower portion of its vibrating head is connected with cover plate, the cover plate is connected with X-shaped steel sleeve, said X-shaped steel sleeve has a hollow cavity, the lower end of X-shaped steel sleeve is connected with prefabricated X-shaped reinforced concrete pile shoe. Its construction method includes the following steps: starting vibrating head to downwards drive the X-shaped steel sleeve, and under the protection of prefabricated X-shaped pile shoe driving the X-shaped steel sleeve into foundation, pouring the concrete into the hollow cavity interior of X-shaped steel sleeve, utilizing the vibrating head to make vibration, upwards drawing out the X-shaped steel sleeve from ground, remaining the X-shaped reinforced concrete pile shoe in the foundation so as to form the invented in-situ X-shaped reinforced concrete pile.
Description
Technical field
The present invention relates to a kind of novel cast-in-situ steel reinforced concrete pile construction method, particularly a kind of cast-in-situ X-shaped concrete pile construction method.
Background technology
Before the present invention, in the ground foundation engineering field, circular cast-in-situ steel reinforced concrete stake is widely used in engineering, and the bearing capacity of circular pile foundation is mainly formed by pile side friction and end resistance.But this circular cast-in-situ steel reinforced concrete stake is very big to the consumption of steel concrete, causes the construction cost height.How reducing the consumption of steel concrete and improving bearing capacity of pile foundation is the long-term problem of being concerned about of researcher always.Chinese patent " prefabricated X type reinforcing rod coagulates the soil stake " (patent No. 01218447.0) has been invented prefabricated X-shaped reinforced concrete pile, with respect to prefabricated circular steel rib concrete pile, under the condition of equal bearing capacity of pile foundation, prefabricated X-shaped reinforced concrete pile can be saved the consumption of steel concrete.But prefabricated X-shaped stake will be transported to the scene then owing to need be prefabricated in advance in factory, is driven into prefabricated X-shaped reinforced concrete pile underground with power driving equipment again.This just runs into transportation problem, i.e. Yun Shu cost and inconvenience; And preformed pile inside will arrange more reinforcing bar so that lifting brings many workloads for the post-processed of pile; Long generally being controlled in 12 meters of while stake, and, also need pile extension at the scene for darker ground.Therefore, both increase difficulty of construction, increased construction costs again.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, develops a kind of cast-in-situ X-shaped concrete pile construction method.
Technical scheme of the present invention is:
A kind of cast-in-situ X-shaped concrete pile construction method, the top of vibro driver is provided with vibration head, it is characterized in that the vibration head bottom connects cover plate, and cover plate connects X-shaped steel sleeve pipe, is cavity in the middle of the X-shaped steel sleeve pipe, the steps include:
(1) vibro driver is in place;
(2) the vibration head bottom of vibro driver is connected with cover plate, and cover plate is a steel, with the screw riveted joint, welds between cover plate and the X-shaped steel sleeve pipe between vibration head and the cover plate, and the cover plate lower end is connected with X-shaped steel sleeve pipe;
(3) prefabricated X-shaped steel concrete shoe is in place in the pile driving position of appointment;
(4) X-shaped steel sleeve pipe lower end is connected the shoe of prefabricated X-shaped steel concrete;
(5) the Vibration on Start-up head vibrates downwards, and it is downward to drive the X-shaped steel sleeve pipe that is attached thereto;
(6) X-shaped steel sleeve pipe is squeezed in the ground under the protection of prefabricated X-shaped steel concrete shoe, and the stake end soil body is squeezed in the X-shaped steel outside of sleeve soil body;
(7) remove vibration head, reinforcing cage passes the circular hole in the middle of the cover plate, is placed in the X-shaped steel sleeve pipe cavity;
(8) in X-shaped steel sleeve pipe cavity, inject concrete by the concrete charging aperture;
(9) Vibration on Start-up head vibration is upwards extracted ground with X-shaped steel sleeve pipe, and the shoe of X-shaped steel concrete is stayed in the ground, has just formed cast-in-situ X-shaped concrete pile in the ground.
Advantage of the present invention and effect are reaching under the equal bearing capacity condition, compare with circular cast-in-situ steel reinforced concrete stake, and cast-in-situ X-shaped concrete pile has bigger specific area, obviously saves concrete amount.Comparing with prefabricated X-shaped reinforced concrete pile does not need prefabricatedly in factory in advance, removes the puzzlement of transportation and on-the-spot pile extension from.Cast-in-situ X-shaped concrete pile belongs to rigid pile, and the immersed tube mode of pressurization makes that handling the degree of depth can reach 40 meters while vibrating, and its construction technology is simple, and is workable, is convenient to quality control, supervision, the bearing capacity height.
Description of drawings
Fig. 1---structural principle schematic diagram of the present invention.
Fig. 2---X-shaped steel sleeve structure schematic diagram
Fig. 3---X-shaped steel sleeve pipe upper end and cover plate syndeton schematic diagram.
Fig. 4---prefabricated X-shaped steel concrete shoe structural representation.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, vibro driver 1 top is provided with vibration head 2, and with the screw riveted joint, cover plate 4 is steels, and adopts welding between X-shaped steel sleeve pipe 5 upper ends between these vibration head 2 bottoms and the cover plate 4; In the middle of the cover plate 4 circular hole 3 is set, and is cavity in the middle of the X-shaped steel sleeve pipe 5, have suitable hardness and intensity; Prefabricated X-shaped steel concrete shoe 7 bottoms have integrated poured cutting edge 8, and top has integrated poured X-shaped connector 9; X-shaped steel sleeve pipe 5 and with it the prefabricated X-shaped steel concrete shoe 7 that is connected of bottom constitute that pile sinking are special-purpose to become die devices; X-shaped steel sleeve pipe 5 upper outside are provided with concrete charging aperture 6, and X-shaped steel sleeve pipe 5 outsides are provided with the sign 10 that can observe the pile sinking degree of depth.
During enforcement, earlier that vibro driver 1 is in place, then with the pile driving position location of prefabricated X-shaped steel concrete shoe 7 in appointment, X-shaped steel sleeve pipe 5 lower ends and prefabricated X-shaped steel concrete shoe 7 socket-connect, Vibration on Start-up 2 is vibration downwards, make be attached thereto the cover plate 4 that connects, X-shaped steel sleeve pipe 5 under the protection of prefabricated X-shaped steel concrete shoe 7 together vibration go deep in the ground downwards; Prefabricated X-shaped steel concrete shoe 7 bottoms have integrated poured cutting edge 8, are convenient to reduce the resistance of incision ground, and top has integrated poured X-shaped connector 9, and its size is slightly less than the internal diameter of X-shaped steel sleeve pipe 5 so that stablize socket during construction; When X-shaped steel sleeve pipe 5 sinks in advance projected depth, promptly indicate 10 by observing on X-shaped steel sleeve pipe 5 outsides, can learn whether to reach projected depth; Remove vibration head 2, reinforcing cage 11 is put into the cavity of X-shaped steel sleeve pipe 5 by the circular holes 3 in the middle of the cover plate 4, the concrete charging aperture 6 by X-shaped steel sleeve pipe 5 upper outside injects concrete in X-shaped steel sleeve pipe 5 cavitys then; At last, X-shaped steel sleeve pipe 5 is upwards extracted in Vibration on Start-up 2 vibrations, on when pulling out on the speed of pulling out be 0.6-1.5m/min, to help pile; 7 of prefabricated X-shaped steel concrete shoes are stayed in the ground, treat that X-shaped steel sleeve pipe 5 is extracted ground fully after, in ground, just formed cast-in-situ X-shaped concrete pile.
Squeeze in the ground and guaranteed strength for ease of X-shaped steel sleeve pipe 5, its section outsourcing circular diameter can chosen between 0.4-2.0 rice, becomes pile length between 6-40 rice, and four terminations of pile body are tack, are convenient to strengthen the resistance to overturning of steel sleeve.
As Soft Ground, generally do not need very high strength of the mixing pile, therefore also can not place reinforcing cage 11, and directly form cast-in-place X-shaped concrete pile.
Therefore protection scope of the present invention is not limited only to the description of present embodiment.
Claims (1)
1. cast-in-situ X-shaped concrete pile construction method, the top of vibro driver is provided with vibration head, it is characterized in that the vibration head bottom connects cover plate, and cover plate connects X-shaped steel sleeve pipe, is cavity in the middle of the X-shaped steel sleeve pipe, the steps include:
(1) vibro driver is in place;
(2) the vibration head bottom of vibro driver is connected with cover plate, and cover plate is a steel, with the screw riveted joint, welds between cover plate and the X-shaped steel sleeve pipe between vibration head and the cover plate, and the cover plate lower end is connected with X-shaped steel sleeve pipe;
(3) prefabricated X-shaped steel concrete shoe is in place in the pile driving position of appointment;
(4) X-shaped steel sleeve pipe lower end is connected the shoe of prefabricated X-shaped steel concrete;
(5) the Vibration on Start-up head vibrates downwards, and it is downward to drive the X-shaped steel sleeve pipe that is attached thereto;
(6) X-shaped steel sleeve pipe is squeezed in the ground under the protection of prefabricated X-shaped steel concrete shoe, and the stake end soil body is squeezed in the X-shaped steel outside of sleeve soil body;
(7) remove vibration head, reinforcing cage passes the circular hole in the middle of the cover plate, is placed in the X-shaped steel sleeve pipe cavity;
(8) in X-shaped steel sleeve pipe cavity, inject concrete by the concrete charging aperture;
(9) Vibration on Start-up head vibration is upwards extracted ground with X-shaped steel sleeve pipe, and the shoe of X-shaped steel concrete is stayed in the ground, has just formed cast-in-situ X-shaped concrete pile in the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100203063A CN101021070B (en) | 2007-02-12 | 2007-02-12 | Cast-in-situ X-shaped concrete pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100203063A CN101021070B (en) | 2007-02-12 | 2007-02-12 | Cast-in-situ X-shaped concrete pile construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021070A CN101021070A (en) | 2007-08-22 |
| CN101021070B true CN101021070B (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100203063A Expired - Fee Related CN101021070B (en) | 2007-02-12 | 2007-02-12 | Cast-in-situ X-shaped concrete pile construction method |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296592A (en) * | 2011-06-27 | 2011-12-28 | 河海大学 | Construction method of cast-in-situ X-shaped reinforced concrete pile underground continuous wall |
| CN102444121A (en) * | 2011-10-24 | 2012-05-09 | 河南理工大学 | Starlike in-situ concrete pile construction method |
| CN102587357A (en) * | 2012-03-27 | 2012-07-18 | 河海大学 | Construction method for electro-osmosis aided driving of cast-in-place X-shaped pile |
| CN102808407B (en) * | 2012-08-14 | 2014-09-03 | 天津二十冶建设有限公司 | Construction method of soft-foundation reinforced concrete cast-in-place pile |
| CN102839655B (en) * | 2012-09-18 | 2014-04-09 | 中国地质大学（武汉） | Cast-in-place five-star-shaped end part threaded tapered pile and construction method of cast-in-place five-star-shaped end part threaded tapered pile |
| CN104196013B (en) * | 2014-09-11 | 2016-04-20 | 浙江大学城市学院 | A kind of composite Y shape stake and construction method thereof |
| CN104264668B (en) * | 2014-09-19 | 2016-02-10 | 河海大学 | Stake mould of X-shaped Model Pile and preparation method thereof |
| CN106948344A (en) * | 2017-04-17 | 2017-07-14 | 中国十七冶集团有限公司 | A kind of gear shape supporting plate stake and its construction method |
| CN112095602A (en) * | 2020-09-03 | 2020-12-18 | 陶伟 | Vibration pile driver is used in bridge construction |
| CN113338271A (en) * | 2021-05-12 | 2021-09-03 | 西安理工大学 | Concrete hollow pile pouring method and device |
| CN113513017A (en) * | 2021-05-14 | 2021-10-19 | 张掖市陇原地基基础工程有限公司 | Eight-tooth-shaped carrier pile and construction method thereof |
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2007
- 2007-02-12 CN CN2007100203063A patent/CN101021070B/en not_active Expired - Fee Related
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| CN101021070A (en) | 2007-08-22 |
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Owner name: SHI BENLIANG Free format text: FORMER OWNER: LIU HANLONG Effective date: 20140220 |
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Free format text: CORRECT: ADDRESS; FROM: 210096 NANJING, JIANGSU PROVINCE TO: 210003 NANJING, JIANGSU PROVINCE |
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Effective date of registration: 20140220 Address after: 210003 Jiangsu province Zhong Gulou District of Nanjing City Fu Road No. 28 1-2-520 Patentee after: Shi Benliang Address before: 210096 Southeast University, Jiangsu Province, No. 2, four arch, Nanjing Patentee before: Liu Hanlong |
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