CN202689008U - Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit - Google Patents

Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit Download PDF

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Publication number
CN202689008U
CN202689008U CN2012202716192U CN201220271619U CN202689008U CN 202689008 U CN202689008 U CN 202689008U CN 2012202716192 U CN2012202716192 U CN 2012202716192U CN 201220271619 U CN201220271619 U CN 201220271619U CN 202689008 U CN202689008 U CN 202689008U
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CN
China
Prior art keywords
row
pile
prefabricated
strength concrete
steel pipe
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Application number
CN2012202716192U
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Chinese (zh)
Inventor
李仁民
陈晓凤
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东南大学
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Priority to CN2012202716192U priority Critical patent/CN202689008U/en
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Publication of CN202689008U publication Critical patent/CN202689008U/en

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Abstract

The utility model relates to the technical field of geotechnical engineering, in particular to a supporting structure for a double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit. The supporting structure comprises front-row prefabricated high-strength concrete thin-walled steel pipe piles, rear-row piles, a front-row pile top beam, a rear-row pile top beam, connecting beams for the front-row piles and the rear-row piles, and a cement mixing pile, wherein the front-row pile top beam is arranged at one ends of the front-row prefabricated high-strength concrete thin-walled steel pipe piles; the rear-row pile top beam is arranged at one ends of the rear-row piles; the connecting beams for the front-row piles and the rear-row piles are arranged between the front-row pile top beam and the rear-row pile top beam; soil between the piles is arranged between the front-row prefabricated high-strength concrete thin-walled steel pipe piles and the rear-row piles; and the cement mixing pile is arranged between the soil between the piles and the front-row prefabricated high-strength concrete thin-walled steel pipe piles. The supporting structure achieves the purposes of high structure strength, strong resistance to bending, functions of soil retaining and water stopping, convenience and quickness in construction and recycling, and is suitable for digging deeper foundation pits.

Description

A kind of double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction
Technical field
The utility model relates to the technical field of geotechnical engineering, relates in particular to a kind of technical field of double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction.
Background technology
Double-row pile is by forward and backward two rows parallel stake and a frame type space truss structure that the coupling beam of pushing up forms, and this kind structure need not to support, and has larger construction space, cuts the earth convenient.From structure stress, this kind structure is the space statically-indeterminate structure, good integrity, and rigidity is large, thus effectively limit lateral distortion.
Double-row pile stake type commonly used is bored pile, bored pile have bearing capacity high, can pass through that various soil property complexity or soft or hard change large soil layer (such as the rock stratum of all kinds of cohesive soils, sand, crushed gravel soil, decomposed rock and many interlayers), construction technology is ripe and on advantages such as the surrounding buildings impact are little.But bored pile has, and construction link is more, technical requirements is high, technique is complicated, construction and curing time is long, the high cost shortcoming.
The patent No. is 201020121882.4 double high strength prestressing concrete pile tube, this kind structure composition the advantage of high strength prestressing concrete pile tube and double-row pile, the construction simple and fast, easy to control the quality, construction costs is lower, but high-strength prestressed concrete pipe pile (PHC pile tube) bending resistance is less, uses in engineering and has been subject to certain restriction.
Prefabricated high-strength concrete thin steel pipe pile (TSC pile tube) refers to that adopting the trade mark be steel plate (steel band) fluid concrete in the steel pipe that the cans welding is made of Q235B or Q345B, through centrifugal forming, concrete crushing strength is not less than 80MPa, has the foundation pile goods that bear larger vertical load and horizontal loading.
Summary of the invention
The utility model purpose provides that a kind of rigidity of structure is large, bending resistance is strong, have the native water stopping function of gear, convenient, fast construction concurrently, reusable edible, is applicable to cutting depth than the double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction of deep foundation ditch.
A kind of double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction, comprise front-seat prefabricated high-strength concrete thin steel pipe pile, rear campshed, front-seat dowel crown beam, rear campshed Guan Liang, front and back campshed contact beam, cement mixing method, one end of front-seat prefabricated high-strength concrete thin steel pipe pile is arranged front-seat dowel crown beam, the end cloth postpone campshed Guan Liang of rear campshed, campshed contacts beam before and after arranging between front-seat dowel crown beam and the rear campshed hat beam, front-seat prefabricated high-strength concrete thin steel pipe pile, be inter-pile soil between the rear campshed, arrange cement mixing method between inter-pile soil and the front-seat prefabricated high-strength concrete thin steel pipe pile.
Rear campshed of the present utility model is PHC pile tube or prefabricated high-strength concrete thin steel pipe pile.
The utility model adopts technique scheme, compared with prior art have following advantage: the utility model adopts double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction, can give full play to the advantage of prefabricated high-strength concrete thin steel pipe pile and double-row pile, good integrity, rigidity is large, bending resistance is strong, and malformation is little.
Description of drawings
Fig. 1 is the floor map of the utility model structure.
Fig. 2 is the generalized section of Fig. 1.
Among the figure: 1, front-seat prefabricated high-strength concrete thin steel pipe pile; 2, rear row's PHC pile tube or prefabricated high-strength concrete thin steel pipe pile; 3, front-seat dowel crown beam; 4, rear campshed Guan Liang; 5, front and back campshed contact beam; 6, cement mixing method.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated:
Such as Fig. 1, shown in 2, a kind of double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction, it is characterized in that comprising front-seat prefabricated high-strength concrete thin steel pipe pile 1, rear campshed 2, front-seat dowel crown beam 3, rear campshed hat beam 4, front and back campshed contact beam 5, cement mixing method 6, one end of front-seat prefabricated high-strength concrete thin steel pipe pile 1 is arranged front-seat dowel crown beam 3, the end cloth postpone campshed hat beam 4 of rear campshed 2, campshed contacts beam 5 before and after arranging between front-seat dowel crown beam 3 and the rear campshed hat beam 4, front-seat prefabricated high-strength concrete thin steel pipe pile 1, be inter-pile soil between the rear campshed 2, arrange cement mixing method 6 between inter-pile soil and the front-seat prefabricated high-strength concrete thin steel pipe pile 1.
Rear campshed 2 of the present utility model is PHC pile tube or prefabricated high-strength concrete thin steel pipe pile.
Job practices based on double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction of the present utility model may further comprise the steps:
The first step: according to site condition and computational analysis, model, long, the pile spacing of stake, the double-row pile of determining front-seat prefabricated high-strength concrete thin steel pipe pile 1, the prefabricated high-strength concrete thin steel pipe pile 2 of rear row laid cross section, arrangement of reinforcement and the spacing of pattern and array pitch, front-seat dowel crown beam 3, rear campshed hat beam 4, front and back campshed contact beam 5; Determine type, stake footpath, long, the pile spacing of stake of cement mixing method 6;
Second step: construction cement mixing method 6;
The 3rd step: construct front-seat prefabricated high-strength concrete thin steel pipe pile 1, rear campshed 2(static pressure method or vibrating hydraulic method);
The 4th step: the front-seat dowel crown beam 3 on construction campshed stake top, rear campshed hat beam 4 and front and back campshed contact beam 5, excavation pit;
The 5th step: to clearing up at the bottom of the Foundation Pit, flattening, build bed course, construction base plate and agent structure;
The 6th step: backfill, extract according to circumstances prefabricated high-strength concrete thin steel pipe pile.

Claims (2)

1. double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction, it is characterized in that comprising front-seat prefabricated high-strength concrete thin steel pipe pile (1), rear campshed (2), front-seat dowel crown beam (3), rear campshed Guan Liang (4), front and back campshed contact beam (5), cement mixing method (6), one end of front-seat prefabricated high-strength concrete thin steel pipe pile (1) is arranged front-seat dowel crown beam (3), the end cloth postpone campshed Guan Liang (4) of rear campshed (2), campshed contact beam (5) before and after arranging between front-seat dowel crown beam (3) and the rear campshed Guan Liang (4), front-seat prefabricated high-strength concrete thin steel pipe pile (1), be inter-pile soil between the rear campshed (2), arrange cement mixing method (6) between inter-pile soil and the front-seat prefabricated high-strength concrete thin steel pipe pile (1).
2. double prefabricated high-strength concrete thin-wall steel tube pile pit supporting construction according to claim 1 is characterized in that above-mentioned rear campshed (2) is PHC pile tube or prefabricated high-strength concrete thin steel pipe pile.
CN2012202716192U 2012-06-11 2012-06-11 Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit CN202689008U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202716192U CN202689008U (en) 2012-06-11 2012-06-11 Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202716192U CN202689008U (en) 2012-06-11 2012-06-11 Supporting structure for double-row prefabricated high-strength concrete thin-walled steel pipe pile foundation pit

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CN202689008U true CN202689008U (en) 2013-01-23

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103290850A (en) * 2013-06-20 2013-09-11 江苏城市职业学院 Arch combination foundation pit retaining and protection system and construction method thereof
CN103290848A (en) * 2013-06-20 2013-09-11 江苏城市职业学院 Large diameter arc-shaped steel sheet pile combined foundation pit retaining structure and construction method thereof
CN103410158A (en) * 2013-08-28 2013-11-27 上海岩土工程勘察设计研究院有限公司 Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof
CN103758134A (en) * 2014-01-24 2014-04-30 中国建筑股份有限公司 Combined double-row pile supporting system and construction method thereof
CN106522242A (en) * 2016-12-21 2017-03-22 大连交通大学 Foundation pit supporting system for subsurface structure close to soft ground stratum and construction method of foundation pit supporting system
CN109113069A (en) * 2018-08-08 2019-01-01 武岳 Precipitous section tunnel immediately adjacent to bridge foundation pit support device and construction method
CN109914394A (en) * 2019-03-30 2019-06-21 西安科技大学 A kind of zigzag Row Piles Supporting Structure
CN111560808A (en) * 2020-05-26 2020-08-21 中国电建集团成都勘测设计研究院有限公司 Deep covering layer landslide section filling roadbed retaining structure and construction method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103290850A (en) * 2013-06-20 2013-09-11 江苏城市职业学院 Arch combination foundation pit retaining and protection system and construction method thereof
CN103290848A (en) * 2013-06-20 2013-09-11 江苏城市职业学院 Large diameter arc-shaped steel sheet pile combined foundation pit retaining structure and construction method thereof
CN103290848B (en) * 2013-06-20 2015-04-08 江苏城市职业学院 Large diameter arc-shaped steel sheet pile combined foundation pit retaining structure and construction method thereof
CN103410158A (en) * 2013-08-28 2013-11-27 上海岩土工程勘察设计研究院有限公司 Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof
CN103410158B (en) * 2013-08-28 2018-01-05 上海岩土工程勘察设计研究院有限公司 A kind of recyclable vertical type door frame is from steady building enclosure and its application process
CN103758134A (en) * 2014-01-24 2014-04-30 中国建筑股份有限公司 Combined double-row pile supporting system and construction method thereof
CN106522242A (en) * 2016-12-21 2017-03-22 大连交通大学 Foundation pit supporting system for subsurface structure close to soft ground stratum and construction method of foundation pit supporting system
CN106522242B (en) * 2016-12-21 2018-12-14 大连交通大学 For soft stratum close to underground structure foundation pit supporting system construction method
CN109113069A (en) * 2018-08-08 2019-01-01 武岳 Precipitous section tunnel immediately adjacent to bridge foundation pit support device and construction method
CN109914394A (en) * 2019-03-30 2019-06-21 西安科技大学 A kind of zigzag Row Piles Supporting Structure
CN111560808A (en) * 2020-05-26 2020-08-21 中国电建集团成都勘测设计研究院有限公司 Deep covering layer landslide section filling roadbed retaining structure and construction method

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Granted publication date: 20130123

Termination date: 20150611