CN201873997U - Support structure of foundation pit - Google Patents
Support structure of foundation pit Download PDFInfo
- Publication number
- CN201873997U CN201873997U CN2010206222760U CN201020622276U CN201873997U CN 201873997 U CN201873997 U CN 201873997U CN 2010206222760 U CN2010206222760 U CN 2010206222760U CN 201020622276 U CN201020622276 U CN 201020622276U CN 201873997 U CN201873997 U CN 201873997U
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- Prior art keywords
- foundation pit
- campshed
- pit supporting
- sealing
- piles
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Abstract
The utility model relates to a support structure of a foundation pit, which comprises a plurality of supporting row piles of the foundation pit, a plurality of water stops, a plurality of water stop curtains and a plurality of lateral resisting row piles, wherein the supporting row piles of the foundation pit are cast-in-situ concrete thin-wall pipe piles which consist of a plurality of long piles and a plurality of short piles at intervals; the water stops, the water stop curtains and the lateral resisting row piles are concrete stirring piles; the water stops and the water stop curtains are a row of concrete stirring piles which are occluded with one another; the lateral resisting row piles are a plurality of rows of concrete stirring piles which are occluded with one another in a bidirectional way; the water stops and the water stop curtains are arranged at one sides of the supporting row piles of the foundation pit corresponding to the periphery of the foundation pit; and the lateral resisting row piles are arranged in the bottom of the pit at one sides of the supporting row piles of the foundation pit corresponding to the foundation pit. By adopting the technical scheme, the support structure has the effects that the foundation pit construction period is shortened and the engineering cost is saved.
Description
Technical field
The utility model relates to the building foundation technical field, is specifically related to a kind of foundation pit supporting construction.
Background technology
Along with the development of urban construction, highrise building increases gradually, and the city building is intensive day by day.Because the requirement of the function of use and the exploitation underground space, highrise building generally all design the basement of the big planar dimension and the degree of depth.The exploitation of the underground space relates to the safety of deep building foundation pit, and this is particularly important to the building dense area that is seated on the soft foundation.Especially be located in coastal city towards wash plain, the engineering site mostly is weak soil, the former more employing soil nailing wall of pattern foundation pit supporting structure, and foundation pit deformation and slope soil displacement are bigger, especially meet day after day heavy rain or typhoon heavy rain and harass, and the foundation ditch cave-in accident happens occasionally.The foundation ditch retaining protected common employing drill-pouring piling wall afterwards, the horizontal reinforcement concrete is set in the hole supports, thereby improved the rigidity and the stability of foundation pit enclosure structure, had controlled foundation pit deformation preferably, and the foundation ditch accident greatly reduces.Weak point is that construction, maintenance and support replacement thereof and the dismounting that concrete supports prolonged the foundation pit construction duration, has promoted construction costs, also makes troubles to basement construction.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of foundation pit supporting construction that makes things convenient for basement structure construction, shortening foundation pit construction duration and save engineering cost.
For achieving the above object, the utility model provides following technical scheme: a kind of foundation pit supporting construction, it is characterized in that: comprise the pattern foundation pit supporting structure campshed, sealing, end native curtain, and anti-side campshed, described pattern foundation pit supporting structure campshed is set to be long stake, stub cast-in-place concrete thin-walled pile tube at interval, sealing, end native curtain and anti-side campshed all is set to cement mixing pile, described sealing, end native curtain and be set to the engaged cement mixing pile of a row, described anti-side campshed is set to the cement mixing pile of the two-way interlock of plurality of rows, described sealing, end native curtain and be arranged on the corresponding foundation ditch periphery of pattern foundation pit supporting structure campshed one side, in described anti-side campshed is arranged at the bottom of the hole of corresponding foundation ditch one side of pattern foundation pit supporting structure campshed.
The utility model further is set to: described sealing, the foundation ditch periphery that ends native curtain correspondence are provided with to sealing, end the descending grade that native curtain side direction has a down dip, and the foundation ditch periphery highly is higher than described pattern foundation pit supporting structure campshed and sealing, ends native curtain.
The utility model further is set to: be provided with reinforcing cage in the described cast-in-place concrete thin-walled pile tube, the corresponding sealing of described reinforcing cage, the longitudinal rib that ends native curtain one side distribute close in opposite side.
The utility model further is set to: the long stake of described cast-in-place concrete thin-walled pile tube is evenly distributed, and two stubs have been equally spaced between per two long stakes.
The bending resistance square design huge because of the stake footpath and reinforcing cage of cast-in-place concrete thin-walled pile tube has stronger lateral resisting ability, adopt the length design that lays out pile at interval, long and increase under the situation of less cost and obtain obvious lifting cantilever side slope rigidity and stable effect thereof in the stake of only elongated portion stake.Cast-in-place concrete thin-walled pile tube is because reinforcing cage is to remove vertically to lay behind vibrating hammer and the clamper after internal and external casing is sink to design elevation to put in place again, therefore, the asymmetric formula arrangement of reinforcement of the bending resistance square design of fender post reinforcing cage is laid quality abundant assurance, makes it become the unique advantage of cantilever pile space enclosing structure.Cast-in-place thin-wall pipe pile hole inner bottom plating absolute altitude is reinforced pier to increase anti-passive earth pressure to divide into the deep-cement agitation pile, because cast-in-place thin-wall pipe pile stake end does not have sediment, stake does not have the mud skin to make pile body can bring into play load better in week simultaneously, guarantees the stability of pile tube side slope.Cast-in-place concrete thin-walled pile tube as the pattern foundation pit supporting structure campshed is a cantilever, therefore makes things convenient for basement structure construction.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is foundation pit supporting construction figure of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is cast-in-place concrete thin-walled pile tube transverse sectional view;
Fig. 5 is cast-in-place concrete thin-walled pile tube stake machine mechanism figure.
The specific embodiment
Referring to accompanying drawing 1 to accompanying drawing 5, a kind of foundation pit supporting construction disclosed by the invention, comprise pattern foundation pit supporting structure campshed 1, sealing, end native curtain 2, and anti-side campshed 3, described pattern foundation pit supporting structure campshed 1 is set to be long stake 11, stub 12 cast-in-place concrete thin-walled pile tube at interval, and present embodiment is preferred, the long stake 11 of cast-in-place concrete thin-walled pile tube is evenly distributed, and two stubs 12 have been equally spaced between per two long stakes 11.Sealing, end native curtain 2 and anti-side campshed 3 all is set to cement mixing pile, described sealing, end native curtain 2 and be set to the engaged cement mixing pile of a row (being that each cement mixing pile partly coincides with adjacent cement mixing pile respectively), described anti-side campshed 3 is set to the cement mixing pile (being that each cement mixing pile partly coincides with adjacent cement mixing pile respectively) of the two-way interlock of plurality of rows, and the preferably anti-side campshed 3 of present embodiment is set to 4 draining mud agitation piles.Described sealing, end native curtain 2 and be arranged on the corresponding foundation ditch periphery of pattern foundation pit supporting structure campshed 14 one sides, in described anti-side campshed 3 is arranged at the bottom of the hole of pattern foundation pit supporting structure campshed 1 corresponding foundation ditch 5 one sides.Sealing, the foundation ditch periphery 4 that ends native curtain 2 correspondences are provided with to sealing, end the descending grade 41 that native curtain 2 side direction have a down dip, foundation ditch periphery 4 highly be higher than described pattern foundation pit supporting structure campshed 1 with sealing, end native curtain 2.The terrace that hardens around the foundation ditch adopts brick escape canal 42 to prevent that surface water from importing foundation ditch 5.Be provided with reinforcing cage 13 in the cast-in-place concrete thin-walled pile tube, the corresponding sealing of described reinforcing cage, the longitudinal rib 131 that ends native curtain one side distribute close in opposite side, have improved the anti-bending strength of cast-in-place concrete thin-walled pile tube.
Cast-in-place concrete thin-walled pile tube is to change tube-sinking cast-in-situ pile into inside and outside two- layer steel sleeve 64,65, under the vibration of its top high-frequency vibratory hammer 61, the toroidal cavity of clad steel sleeve pipe 64,65 compositions and integrally welded lower end flap valve shoe are sunk to the predetermined design degree of depth, wherein be lowered to reinforcing cage 13 and concrete perfusion, vibration pipe-drawing then, (being ring cavity) formation concrete thin-wall pile tube between core and the outside soil body in the pipe in being poured into.Cast-in-place concrete thin-walled pile tube center keeps core.Part extruding soil is discharged from immersed tube mudhole 67 in pore forming process, has overcome the harmful effect that tube-sinking cast-in-situ pile easily causes surrounding environment.The mud disposal costs does not take place again, thereby has remarkable economical, environmental benefit.Inside and outside steel sleeve 64,65 plays template action, retaining wall effect in pile, vibrating acts on and the extruding densification.Construction equipment is simple, easy and simple to handle, pile quality is reliable.The thin-walled large-section in-situ concrete pile that still keeps core in the middle of the pile tube with compare with the bored pile in footpath, pile body concrete perfusion amount greatly reduces.
Claims (4)
1. foundation pit supporting construction, it is characterized in that: comprise the pattern foundation pit supporting structure campshed, sealing, end native curtain, and anti-side campshed, described pattern foundation pit supporting structure campshed is set to be long stake, stub cast-in-place concrete thin-walled pile tube at interval, sealing, end native curtain and anti-side campshed all is set to cement mixing pile, described sealing, end native curtain and be set to the engaged cement mixing pile of a row, described anti-side campshed is set to the cement mixing pile of the two-way interlock of plurality of rows, described sealing, end native curtain and be arranged on the corresponding foundation ditch periphery of pattern foundation pit supporting structure campshed one side, in described anti-side campshed is arranged at the bottom of the hole of corresponding foundation ditch one side of pattern foundation pit supporting structure campshed.
2. foundation pit supporting construction according to claim 1, it is characterized in that: described sealing, the foundation ditch periphery that ends native curtain correspondence are provided with to sealing, end the descending grade that native curtain side direction has a down dip, and the foundation ditch periphery highly is higher than described pattern foundation pit supporting structure campshed and sealing, ends native curtain.
3. foundation pit supporting construction according to claim 1 is characterized in that: be provided with reinforcing cage in the described cast-in-place concrete thin-walled pile tube, the corresponding sealing of described reinforcing cage, the longitudinal rib that ends native curtain one side distribute close in opposite side.
4. according to claim 1 or 2 or 3 described foundation pit supporting constructions, it is characterized in that: the long stake of described cast-in-place concrete thin-walled pile tube is evenly distributed, and two stubs have been equally spaced between per two long stakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206222760U CN201873997U (en) | 2010-11-24 | 2010-11-24 | Support structure of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206222760U CN201873997U (en) | 2010-11-24 | 2010-11-24 | Support structure of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201873997U true CN201873997U (en) | 2011-06-22 |
Family
ID=44161922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206222760U Expired - Lifetime CN201873997U (en) | 2010-11-24 | 2010-11-24 | Support structure of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201873997U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011404A (en) * | 2010-11-24 | 2011-04-13 | 温州中城建设集团有限公司 | Pit supporting structure and construction method thereof |
| CN102644286A (en) * | 2012-04-10 | 2012-08-22 | 广东天竟建设有限公司 | Deep foundation pit supporting structure |
| CN102888848A (en) * | 2012-10-18 | 2013-01-23 | 上海强劲地基工程股份有限公司 | Supporting structure for controlling stability of foundation ditch |
| CN103074899A (en) * | 2013-01-18 | 2013-05-01 | 周文松 | Subdepot pier-type foundation pit support structure and construction method |
| CN103669364A (en) * | 2012-08-30 | 2014-03-26 | 深圳市工勘岩土工程有限公司 | Pit-in-pit horizontal supporting structure in deep foundation pit and construction method thereof |
| CN104074197A (en) * | 2014-03-20 | 2014-10-01 | 温州大学 | Large-diameter thin-walled tubular pile composite anchor rod type foundation pit support structure and construction method thereof |
| CN109914447A (en) * | 2019-04-15 | 2019-06-21 | 陈林 | A kind of foundation pit support system |
-
2010
- 2010-11-24 CN CN2010206222760U patent/CN201873997U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011404A (en) * | 2010-11-24 | 2011-04-13 | 温州中城建设集团有限公司 | Pit supporting structure and construction method thereof |
| CN102011404B (en) * | 2010-11-24 | 2012-07-04 | 温州中城建设集团有限公司 | Pit supporting structure and construction method thereof |
| CN102644286A (en) * | 2012-04-10 | 2012-08-22 | 广东天竟建设有限公司 | Deep foundation pit supporting structure |
| CN102644286B (en) * | 2012-04-10 | 2015-06-24 | 广东天竟建设有限公司 | Deep foundation pit supporting structure |
| CN103669364A (en) * | 2012-08-30 | 2014-03-26 | 深圳市工勘岩土工程有限公司 | Pit-in-pit horizontal supporting structure in deep foundation pit and construction method thereof |
| CN102888848A (en) * | 2012-10-18 | 2013-01-23 | 上海强劲地基工程股份有限公司 | Supporting structure for controlling stability of foundation ditch |
| CN103074899A (en) * | 2013-01-18 | 2013-05-01 | 周文松 | Subdepot pier-type foundation pit support structure and construction method |
| CN103074899B (en) * | 2013-01-18 | 2014-12-24 | 周文松 | Subdepot pier-type foundation pit support structure and construction method |
| CN104074197A (en) * | 2014-03-20 | 2014-10-01 | 温州大学 | Large-diameter thin-walled tubular pile composite anchor rod type foundation pit support structure and construction method thereof |
| CN104074197B (en) * | 2014-03-20 | 2016-05-04 | 温州大学 | The construction method of large diameter thin wall cylinder stake compound anchor rod-type foundation pit enclosure structure |
| CN109914447A (en) * | 2019-04-15 | 2019-06-21 | 陈林 | A kind of foundation pit support system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110622 Effective date of abandoning: 20120704 |