CN204112336U - The foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed - Google Patents
The foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed Download PDFInfo
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- CN204112336U CN204112336U CN201420486338.8U CN201420486338U CN204112336U CN 204112336 U CN204112336 U CN 204112336U CN 201420486338 U CN201420486338 U CN 201420486338U CN 204112336 U CN204112336 U CN 204112336U
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Abstract
The utility model discloses the foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed, comprise for foundation ditch gear soil hold concurrently sealing semicircle preformed pile, for preventing the water-seal pile of semicircle joint of precast piles seepage (water-seal pile comprises high-pressure rotary jet grouting pile, cement mixing method, compaction grouting stake etc.).Wherein, semicircle preformed pile continuous arrangement, the circular preformed pile of adjacent two halves is connected by joint, the shutoff of joint arranged outside water-seal pile, the final foundation pit supporting construction forming semicircle preformed pile and combine with water-seal pile.Described joint adopts bayonet joint, and namely one end is the convex surface plug other end is concave surface socket.The utility model achieves that preformed pile width is large, structure lateral rigidity is large, speed of application is fast, stagnant water effect is good, be applicable to that cutting depth is large, the object of groundwater table height Soft Soil Foundation Pit Engineering.
Description
Technical field
The utility model relates to the foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed, and belongs to Geotechnical Engineering field.
Background technology
The major function of foundation pit supporting construction is gear soil and sealing, and supporting and protection structure can be divided into cast in situs formula and prefabricated assembled two kinds according to manufacture craft.
Cast in situs formula foundation pit supporting construction generally refers at the construction field (site), first grooving, lay reinforcing cage, build cementitious material formation again and possess some strength, can bear the structure of side direction Water And Earth Pressures, conventional has bored pile, diaphragm wall etc., also has and first carries out Soil-cement, insert shaped steel again, as SMW engineering method stake etc.Cast in situs formula supporting and protection structure has good integrity, rigidity is large, anti-leakage performance is good, be suitable for the advantages such as geological conditions is extensive, and shortcoming is that job site is polluted large, construction and needed that heavy mechanical equipment, construction technology process are comparatively complicated, the construction period is longer, construction costs is high.
Prefabricated assembled foundation pit supporting construction generally refers to that supporting retaining wall component completes, and only need assemble at the construction field (site) and implement, as steel pipe column, steel sheet pile etc.This kind of support pattern has the advantages such as job site is pollution-free, construction technology is simple, speed of application is fast, the recyclable recycling of supporting and protection structure.But its shortcoming is also comparatively obvious, steel pipe column steel using amount is large, comparatively large to soil disturbance, and steel sheet pile lateral rigidity is little, distortion is large, and the later stage pulls out difficulty etc.
Utility model content
Utility model object: for problems of the prior art with not enough, the foundation pit supporting construction that the utility model provides a kind of semicircle preformed pile to combine with water-seal pile, because of this supporting and protection structure, to have lateral rigidity large, form of structure is simple, speed of application is fast, energy-conserving and environment-protective, have gear soil and water stopping function concurrently, be applicable to surrounding enviroment protection require high and dig the feature of dark larger foundation pit supporting project, solve traditional cast-in-place supporting and protection structure environment pollution serious, the problem that cost is high, solve assembling type steel structure supporting and protection structure insufficient rigidity simultaneously, be out of shape excessive problem.
Technical scheme: the foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed, comprises for the semicircle preformed pile of the double sealing of foundation ditch gear soil with for preventing the water-seal pile of semicircle joint of precast piles seepage.Wherein, multiple semicircle preformed pile continuous arrangement, the circular preformed pile of adjacent two halves is connected by joint, and the shutoff of joint arranged outside water-seal pile, semicircle preformed pile and water-seal pile form foundation pit supporting construction.
Further, described joint adopts bayonet joint, and namely one end is the convex surface plug other end is concave surface socket.
Further, described water-seal pile comprises high-pressure rotary jet grouting pile, cement mixing method, compaction grouting stake etc.
Multiple semicircle preformed pile continuous arrangement, and the circular preformed pile of two halves connects the arranged outside water-seal pile shutoff of (joint) place, achieve the technique effect that preformed pile width is large, structure lateral rigidity is large, speed of application is fast, stagnant water effect is good, be applicable to the Soft Soil Foundation Pit Engineering that cutting depth is large, groundwater table is high.
The utility model adopts technique scheme, and compared with prior art tool has the following advantages:
1, semicircle preformed pile is large compared with traditional prefabricated sheet pile (I shape, H type, V-type etc.) width, and speed of application is faster;
2, semi-circular has " arching ", and it is more reasonable that it transmits soil pressure compared with traditional prefabricated sheet pile (I shape, H type, V-type etc.), and lateral rigidity is larger, and bending resistance is strong, effectively can control Supporting Structure deformation;
3, the joint arranged outside water-seal pile of semicircle preformed pile, ensures stagnant water effect further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
In figure: 1, semicircle preformed pile; 2, water-seal pile; 3, the concave surface socket of semicircle preformed pile; 4, the convex surface plug of semicircle preformed pile.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in Figure 1, the foundation pit supporting construction that semicircle preformed pile and water-seal pile are formed, comprise multiple continuously arranged semicircle preformed pile 1, the both sides of semicircle preformed pile 1 lower end are respectively equipped with a concave surface socket 3 and a convex surface plug 4, and adjacent two semicircle preformed piles 1 realize socket connection by the cooperation of a concave surface socket 3 and a convex surface plug 4; Concave surface socket 3 and convex surface plug 4 are plugged in together the joint forming two adjacent semicircle preformed piles 1, the shutoff of joint arranged outside water-seal pile 2.
Based on the construction method of the foundation pit supporting construction that semicircle preformed pile of the present utility model combines with water-seal pile, comprise the following steps:
The first step: require and computational analysis according to site condition, surrounding enviroment protection, determine that the model of semicircle preformed pile 1, stake are long, determine construction technology and its diameter, length, the cement mixing content of water-seal pile 2;
Second step: construction water-seal pile 2;
3rd step: semicircle preformed pile 1 of constructing;
4th step: Construction Support system, the excavation pit earthwork;
5th step: be excavated to the end, hole, build bed course and base plate in time, construction agent structure;
6th step: fertile groove backfill.
Claims (3)
1. the foundation pit supporting construction that forms of semicircle preformed pile and water-seal pile, is characterized in that: comprise for foundation ditch gear soil hold concurrently sealing semicircle preformed pile (1) and for preventing the water-seal pile (2) of semicircle joint of precast piles seepage; Wherein, multiple semicircle preformed pile (1) continuous arrangement, the circular preformed pile (1) of adjacent two halves is connected by joint, joint arranged outside water-seal pile shutoff (2).
2. the foundation pit supporting construction that forms of semicircle preformed pile as claimed in claim 1 and water-seal pile, is characterized in that: described joint adopts bayonet joint, and one end is convex surface plug (4), and the other end is concave surface socket (3).
3. the foundation pit supporting construction that forms of semicircle preformed pile as claimed in claim 1 or 2 and water-seal pile, is characterized in that: described water-seal pile (2) comprises high-pressure rotary jet grouting pile, cement mixing method and compaction grouting stake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486338.8U CN204112336U (en) | 2014-08-26 | 2014-08-26 | The foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486338.8U CN204112336U (en) | 2014-08-26 | 2014-08-26 | The foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed |
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| Publication Number | Publication Date |
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| CN204112336U true CN204112336U (en) | 2015-01-21 |
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| CN201420486338.8U Active CN204112336U (en) | 2014-08-26 | 2014-08-26 | The foundation pit supporting construction that a kind of semicircle preformed pile and water-seal pile are formed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155554A (en) * | 2015-09-25 | 2015-12-16 | 武汉高铁桩工科技有限公司 | Deep foundation pit of arched supporting system |
| CN109235444A (en) * | 2018-09-10 | 2019-01-18 | 广东三和管桩股份有限公司 | A kind of prismatic prestressing force support pile, piling wall and its construction method |
| CN112982440A (en) * | 2021-03-16 | 2021-06-18 | 浙江理工大学 | Deep foundation pit supporting structure and deep foundation pit supporting method based on limited space |
-
2014
- 2014-08-26 CN CN201420486338.8U patent/CN204112336U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155554A (en) * | 2015-09-25 | 2015-12-16 | 武汉高铁桩工科技有限公司 | Deep foundation pit of arched supporting system |
| CN105155554B (en) * | 2015-09-25 | 2017-12-05 | 武汉谦诚桩工科技股份有限公司 | A kind of deep basal pit of arching system |
| CN109235444A (en) * | 2018-09-10 | 2019-01-18 | 广东三和管桩股份有限公司 | A kind of prismatic prestressing force support pile, piling wall and its construction method |
| CN112982440A (en) * | 2021-03-16 | 2021-06-18 | 浙江理工大学 | Deep foundation pit supporting structure and deep foundation pit supporting method based on limited space |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 210019 No. 88 creative road, Jianye District, Jiangsu, Nanjing Patentee after: Nanjing surveying and mapping investigation and Research Institute Limited by Share Ltd Address before: 210019 No. 88 creative road, Jianye District, Jiangsu, Nanjing Patentee before: Nanjing Surveying Mapping Prospecting Research Institute Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |