CN202627000U - Anchor-pulling type foundation pit supporting structure with double rows of piles - Google Patents
Anchor-pulling type foundation pit supporting structure with double rows of piles Download PDFInfo
- Publication number
- CN202627000U CN202627000U CN 201220257484 CN201220257484U CN202627000U CN 202627000 U CN202627000 U CN 202627000U CN 201220257484 CN201220257484 CN 201220257484 CN 201220257484 U CN201220257484 U CN 201220257484U CN 202627000 U CN202627000 U CN 202627000U
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- campshed
- anchor
- foundation pit
- piles
- pit supporting
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Abstract
The utility model provides an anchor-pulling type foundation pit supporting structure with double rows of piles. The anchor-pulling type foundation pit supporting structure comprises a front row of piles, a back row of piles, a ring beam for the front row of piles, a ring beam for the back row of piles and a connecting beam, wherein an anchor cable is arranged on the back row of piles. The anchor-pulling type foundation pit supporting structure has the advantages that by adopting the anchor cable to provide anchor tension, the defect of insufficient anchor pulling effect of the back row of piles, which is caused by insufficient rigidity of nodes of the connecting beam and the ring beams and geological conditions, are remedied, the piles on the back row can be cut shorter, the deformation of a foundation pit is effectively controlled, the construction difficulty is reduced and engineering costs are saved.
Description
Technical field
The utility model relates to a kind of double-row pile foundation pit supporting construction, is specifically related to a kind of anchor formula double-row pile foundation pit supporting construction that draws.
Background technology
Along with greatly developing of urban construction, especially the development process of urban underground space is accelerated, and foundation pit supporting project also becomes the focus that construction field is paid close attention to gradually.Retaining Structure with Double-row Piles is a support form commonly used in the base pit engineering.Campshed connects beam with the stake top and forms portal framed structure jointly before and after in traditional Double-row Piles Support system, becomes statically indeterminate system.Lian Liang has played cooperative transformation and the effect that distributes internal force for the front and back campshed, and the anchor of campshed draws under the effect in the back, and preceding campshed internal force is improved greatly, and it is long suitably to increase back campshed stake, can effectively control the distortion of stake top.But under some geological condition, back campshed effect is limited, causes stake long excessive, and cost is higher, and the effect of back campshed also can receive the influence of linking beam and collar tie beam node rigidity; In some cases, can utilize existing campshed and new construction campshed to be connected to form the double-row pile structure, but, therefore can't make full use of existing condition and form the double-row pile structure owing to have the long deficiency of campshed stake.
The utility model content
The purpose of the utility model is to overcome the shortcoming of prior art with not enough, provides that a kind of can to reduce back campshed stake long, effectively control foundation pit deformation, save construction costs draw anchor formula double-row pile foundation pit supporting construction.
The utility model is realized through following technical scheme: a kind of anchor formula double-row pile foundation pit supporting construction that draws, comprise preceding campshed, back campshed, preceding campshed collar tie beam, back campshed collar tie beam and linking beam, and said back campshed is provided with anchor cable.
The drilling diameter of said anchor cable is 150mm.
Absolute altitude is to be arranged with anchoring section at the bottom of the campshed stake of said back, and the length of anchoring section is calculated needed anchor pulling force according to the back campshed and confirmed.
As optimal technical scheme, be provided with pvc pipe between said back campshed and the anchor cable.
The diameter of said pvc pipe is 150mm.
Campshed is castinplace pile or prefabricated tubular pile before said.
Campshed is castinplace pile or prefabricated tubular pile in said back.
Construction of the utility model and operating principle: campshed, back campshed before the construction; The prestress anchorage cable of constructing in the pile body of row pile in the back; Campshed collar tie beam and back campshed collar tie beam, linking beam before preceding campshed and back campshed stake top application worker, treat that concrete reaches design strength after, the campshed collar tie beam top stretch-draw anchor cable in the back; Preceding campshed is connected to form the Double-row Piles Support system with preceding campshed collar tie beam, linking beam, back campshed collar tie beam, back campshed successively, and prestress anchorage cable is established in the position in the back campshed stake, and anchor cable provides certain anchor pulling force for the back campshed.
The utility model has following advantage and effect with respect to prior art:
A kind of anchor formula double-row pile foundation pit supporting construction that draws of the utility model; Through adopting anchor cable that the anchor pulling force is provided; Remedied because linking beam causes back campshed anchor to draw the not enough shortcoming of effect with collar tie beam node insufficient rigidity and geological condition, it is long to reduce back campshed stake, effectively controls foundation pit deformation; Reduce difficulty of construction, save construction costs.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is another structural representation of the utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of the utility model is not limited thereto.
Embodiment one
As shown in Figure 1, a kind of anchor formula double-row pile foundation pit supporting construction that draws, campshed 1, back campshed 5, preceding campshed collar tie beam 2, back campshed collar tie beam 4 and linking beam 3 before comprising, said back campshed 5 is provided with anchor cable 6, and the drilling diameter of said anchor cable 6 is 150mm.
Back campshed 5 is existing stake, the existing about 5m in foundation ditch sideline of distance, drill diameter 150mm hole in 5 of back campsheds, the prestress anchorage cable 6 of constructing.
Absolute altitude is to be arranged with anchoring section 7 at the bottom of 5 of the said back campsheds, and the length of anchoring section 7 is calculated needed anchor pulling force according to back campshed 5 and confirmed.Campshed 1 is a castinplace pile before said, and said back campshed 5 is a prefabricated tubular pile.
Construction of the utility model and operating principle: campshed 1 before the construction; Construction prestressed anchor institute 6 in 5 of the campsheds in back; Campshed collar tie beam 2 and back campshed collar tie beam 4, linking beam 3 before preceding campshed 1 and back campshed 5 top application workers, treat that concrete reaches design strength after, the campshed collar tie beam 4 top stretch-draw anchor cables 6 in the back; Before campshed 1 be connected to form the Double-row Piles Support system with preceding campshed collar tie beam 2, linking beam 3, back campshed collar tie beam 4, back campshed 5 successively; Prestress anchorage cable 6 is established in the position in 5 of the back campsheds; Anchor cable 6 provides certain anchor pulling force for back campshed 5; Can under the prerequisite that guarantees the foundation ditch safety and stability, save construction costs significantly.
Embodiment two
Present embodiment except that following characteristic with embodiment one: as shown in Figure 2, owing to banket thicklyer around the foundation ditch, the surrounding enviroment space is limited, and higher to environmental protection requirement; Adopt Double-row Piles Support, must increase afterwards that 5 of campsheds are long could effectively control foundation pit deformation, when place internal memory during at conglomerate or middle weathered sandwich; Soldier pile pore-forming difficulty is bigger, can suitably reduce the length of back campshed 5, utilizes prestress anchorage cable 6; For back campshed 5 provides anchor to draw effect, reach the effect of controlled deformation, be provided with pvc pipe 8 between said back campshed 5 and the anchor cable 6; The diameter of pvc pipe 8 is 150mm, and said preceding campshed 1 is a prefabricated tubular pile, and said back campshed 5 is a castinplace pile.
The preceding campshed 1 of construction earlier, construction back campshed 5 again.During construction back campshed 5, the pvc pipe 5 of pre-buried diameter 150mm in pile body, treat that back campshed 5 pile concretes reach design strength after, at the bottom of construction prestress anchorage cable 6 in campshed 5 pile bodies of back, anchoring section 7 are positioned at below the absolute altitude.Campshed collar tie beam 2, back campshed collar tie beam 4 and linking beam 2 before constructing then.After treating that concrete reaches design strength, the campshed collar tie beam 4 top stretch-draw prestressing force anchor cables 6 in the back.
Adopt technique scheme, under some geological conditions, can reduce difficulty of construction, save construction costs.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (7)
1. one kind is drawn anchor formula double-row pile foundation pit supporting construction, comprises preceding campshed, back campshed, preceding campshed collar tie beam, back campshed collar tie beam and linking beam, it is characterized in that: said back campshed is provided with anchor cable.
2. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 1, it is characterized in that: the drilling diameter of said anchor cable is 150mm.
3. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 1 is characterized in that: absolute altitude is to be arranged with anchoring section at the bottom of the campshed stake of said back.
4. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 1 is characterized in that: be provided with pvc pipe between said back campshed and the anchor cable.
5. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 4, it is characterized in that: the diameter of said pvc pipe is 150mm.
6. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 1 is characterized in that: campshed is castinplace pile or prefabricated tubular pile before said.
7. a kind of anchor formula double-row pile foundation pit supporting construction that draws according to claim 1 is characterized in that: said back campshed is castinplace pile or prefabricated tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257484 CN202627000U (en) | 2012-05-31 | 2012-05-31 | Anchor-pulling type foundation pit supporting structure with double rows of piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257484 CN202627000U (en) | 2012-05-31 | 2012-05-31 | Anchor-pulling type foundation pit supporting structure with double rows of piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627000U true CN202627000U (en) | 2012-12-26 |
Family
ID=47380211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257484 Expired - Lifetime CN202627000U (en) | 2012-05-31 | 2012-05-31 | Anchor-pulling type foundation pit supporting structure with double rows of piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627000U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195069A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Method for shoring prestressed double-row-pile strong-constraint deep foundation pit |
| CN103469803A (en) * | 2013-09-30 | 2013-12-25 | 中国建筑股份有限公司 | Pile beam vertical anchor support system used for supporting foundation pit and construction method of pile beam vertical anchor support system |
| CN103590408A (en) * | 2013-11-25 | 2014-02-19 | 中国建筑股份有限公司 | Novel double-row pile beam vertical anchor supporting system and construction method thereof |
| CN104060614A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Construction method of support pile of earlier constructed top beam |
| CN104328788A (en) * | 2014-09-26 | 2015-02-04 | 安徽水利开发股份有限公司 | Combined supporting construction method of two rows of grouting piles and pull anchoring and shotcreting layer |
| CN110130360A (en) * | 2019-05-10 | 2019-08-16 | 中国建筑西南勘察设计研究院有限公司 | A kind of post-tensioned prestressing supporting construction and its construction method |
-
2012
- 2012-05-31 CN CN 201220257484 patent/CN202627000U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060614A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Construction method of support pile of earlier constructed top beam |
| CN104060614B (en) * | 2013-03-20 | 2016-03-30 | 中国二十冶集团有限公司 | A kind of soldier pile construction method of first building Guan Liang |
| CN103195069A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Method for shoring prestressed double-row-pile strong-constraint deep foundation pit |
| CN103469803A (en) * | 2013-09-30 | 2013-12-25 | 中国建筑股份有限公司 | Pile beam vertical anchor support system used for supporting foundation pit and construction method of pile beam vertical anchor support system |
| CN103590408A (en) * | 2013-11-25 | 2014-02-19 | 中国建筑股份有限公司 | Novel double-row pile beam vertical anchor supporting system and construction method thereof |
| CN103590408B (en) * | 2013-11-25 | 2016-06-15 | 中国建筑股份有限公司 | The perpendicular anchor support system of a kind of double-row pile beam and constructional method thereof |
| CN104328788A (en) * | 2014-09-26 | 2015-02-04 | 安徽水利开发股份有限公司 | Combined supporting construction method of two rows of grouting piles and pull anchoring and shotcreting layer |
| CN104328788B (en) * | 2014-09-26 | 2016-02-10 | 安徽水利开发股份有限公司 | Double rows slip casting stake with draw shotcrete layer combined supporting construction method |
| CN110130360A (en) * | 2019-05-10 | 2019-08-16 | 中国建筑西南勘察设计研究院有限公司 | A kind of post-tensioned prestressing supporting construction and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |