CN202440824U - Three-line-pile super-deep foundation-pit support structure - Google Patents
Three-line-pile super-deep foundation-pit support structure Download PDFInfo
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- CN202440824U CN202440824U CN2011204717848U CN201120471784U CN202440824U CN 202440824 U CN202440824 U CN 202440824U CN 2011204717848 U CN2011204717848 U CN 2011204717848U CN 201120471784 U CN201120471784 U CN 201120471784U CN 202440824 U CN202440824 U CN 202440824U
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- campshed
- deep foundation
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- support structure
- foundation pit
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Abstract
The utility model discloses a three-line-pile super-deep foundation-pit support structure, comprising front-line piles, middle-line piles and rear-line piles, wherein the front-line piles, the middle-line piles and all the rear-line piles are arranged in parallel. The advantages of the utility model are that: construction is convenient, floor space is small, structural strength is high, integrity is good and the foundation-pit-top horizontal displacement is smaller than that of the same kind of support structure.
Description
Technical field
The utility model relates to a kind of supporting and protection structure of foundation ditch, especially relates to the ultra-deep foundation pit supporting.
Background technology
In recent years, along with the development of urban construction, floor is built higher and higher, and subway digs darker and darker, and the corresponding underground deep foundation ditch degree of depth is also more and more darker, and foundation ditch often is close to City Building, and safety of construction has also been proposed increasingly high requirement.Ultra-large type ultra-deep foundation pit supporting and protection structure has multiple pattern, and the supporting and protection structure that adopts usually comprises interior support or draws continuous underground wall structure, the interior support of anchor system or draw piling structure, the soil nailing combining anchor retaining structure of anchor system.Said structure mainly contains following shortcoming:
1, adopts interior continuous underground wall structure or the piling structure of supporting; Brace summer, support column need be set in foundation ditch; Beam column is put closeer at the foundation ditch lining, support and being connected of post, support and being connected of wall etc., complex structure; Construction brings inconvenience to internal construction, and the post node has sinking or off normal to supporting the stressed considerable influence that has.Construction period wants layering that support, stage excavation are set, and construction period is longer.
2, anchor continuous underground wall structure or piling structure are drawn in employing, need arrange anchor poles along being provided with in the forebay, the tens of rice of rock-bolt length more; It is bigger to take the underground space; Often exceed the expropriation of land scope, and utilize anchor pole as continuing stressed permanent structure, its durability also is worth research; Same this scheme construction period wants the layering setting to draw anchor, stage excavation, and construction period is longer.
3, soil nailing combining anchor retaining structure is same exists that to take the underground space bigger, and require for geological conditions high, defective such as compliance is weak.
Summary of the invention
The purpose of the utility model provides three campshed ultra-deep foundation pit supporting and protection structure of a kind of, easy construction little to ambient influnence, structural strength height and good endurance.
The technical solution of the utility model is: a kind of three campshed ultra-deep foundation pit supporting and protection structure, and it is a kind of system of deep foundation pit support, is made up of parallel preceding campshed, middle campshed and back campshed, preceding campshed, middle campshed, back campshed pile spacing successively decrease successively.
Supporting and protection structure is provided with three campsheds altogether, and campshed is arranged in parallel, and preceding campshed to the pile spacing of back campshed successively decreases; The campshed system can effectively form the bigger whole supporting of the rigidity of structure; The easy construction of campshed, little to ambient influnence, the displacement of foundation ditch top is less than similar supporting and protection structure; Need not establish support system inside and outside the foundation ditch, the excavation of foundation ditch is also more convenient.
The spacing of campshed and said back campshed can improve the campshed integral rigidity less than the spacing of campshed in said and said preceding campshed in said, improves the non-deformability of structural system, improves integrally-built stability, reduces stake top displacement.
The quantity of campshed is the twice of said back campshed quantity in said, and the quantity of said preceding campshed is the twice of said middle campshed quantity.Reduce the quantity of back campshed and middle campshed, under the prerequisite that guarantees structural strength, reduce engineering quantity, reduce construction costs.
The top of campshed, middle campshed and back campshed is anchored at respectively on the horizontal plate-girder before said.Can guarantee integral rigidity, improve structural strength.
The utility model has the advantages that: easy construction, floor space is little, and structural strength is high, good integrity, the horizontal movement of foundation ditch top is less than similar supporting and protection structure.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the layout sketch map of the utility model embodiment;
1, ground, 2, foundation ditch, 3, inwall, 4, horizontal plate-girder, 5, preceding campshed, 6, middle campshed, 7, the back campshed, 8, first soil layer, 9, second soil layer, the 10, the 3rd soil layer, the 11, the 4th soil layer.
The specific embodiment
Embodiment:
Consult Fig. 1; Be a kind of three campshed ultra-deep foundation pit supporting and protection structure sketch mapes; It is made up of the preceding campshed of under the ground 1, the inwall that is arranged on foundation ditch 2 in order 3 back several 5, middle campshed 6 and back campshed 7; Parallel to each other between the row of wherein whole preceding campsheds 5, whole middle campsheds 6 and whole back campshed 7, and the top of preceding campshed 5, middle campshed 6 and back campshed 7 is connected on the horizontal plate-girder 4.Spacing is less than spacing between middle campshed 6 and the preceding campshed 5 between middle campshed 6 and the back campshed 7.
Ground is respectively first soil layer 8, second soil layer 9, the 3rd soil layer 10 and the 4th soil layer 11 below 1.Preceding campshed 5, middle campshed 6 and back campshed 7 pass above-mentioned soil layer respectively.
Consult Fig. 2, in the present embodiment, the degree of depth of foundation ditch 2 is 16.5m; Horizontal plate-girder 4 is positioned at 3.5m place, 1 below, ground, inwall 3 thickness 150mm, and preceding campshed 5, middle campshed 6 and back campshed 7 diameters are 1m; Before the quantity of campshed 5 be the twice of middle campshed 6 quantity, the quantity of middle campshed 6 is the twice of back campshed 7 quantity, wherein spacing 1m between two preceding campsheds 5; Interval 2m between two middle campsheds 6; Spacing 4m between the campshed 7 after two, the whole supporting degree of depth can reach more than the 20m, and the foundation ditch top displacement is no more than 10mm.
Above-listed detailed description is specifying to one of the utility model possible embodiments; This embodiment is not the claim in order to restriction the utility model; Allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (4)
1. campshed ultra-deep foundation pit supporting and protection structure, it is characterized in that: it is a kind of system of deep foundation pit support, is made up of parallel preceding campshed, middle campshed and back campshed, preceding campshed, middle campshed, afterwards the campshed pile spacing successively decreases successively.
2. three campshed ultra-deep foundation pit supporting and protection structure according to claim 1 is characterized in that: row's spacing of campshed and said back campshed is less than row's spacing of campshed in said and preceding campshed in said.
3. three campshed ultra-deep foundation pit supporting and protection structure according to claim 1 and 2 is characterized in that: the quantity of campshed is the twice of said back campshed quantity in said, and the quantity of said preceding campshed is the twice of said middle campshed quantity.
4. three campshed ultra-deep foundation pit supporting and protection structure according to claim 3 is characterized in that: the top of campshed, middle campshed and back campshed is anchored at respectively on the horizontal beam slab before said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204717848U CN202440824U (en) | 2011-11-24 | 2011-11-24 | Three-line-pile super-deep foundation-pit support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204717848U CN202440824U (en) | 2011-11-24 | 2011-11-24 | Three-line-pile super-deep foundation-pit support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440824U true CN202440824U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204717848U Expired - Fee Related CN202440824U (en) | 2011-11-24 | 2011-11-24 | Three-line-pile super-deep foundation-pit support structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN202440824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074898A (en) * | 2013-01-18 | 2013-05-01 | 江苏鸿基科技有限公司 | Multi-row pile foundation pit support structure and construction method thereof |
| CN103882870A (en) * | 2014-03-24 | 2014-06-25 | 上海强劲地基工程股份有限公司 | Cement mixing pile and concrete pile meshing supporting structure and construction method |
-
2011
- 2011-11-24 CN CN2011204717848U patent/CN202440824U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074898A (en) * | 2013-01-18 | 2013-05-01 | 江苏鸿基科技有限公司 | Multi-row pile foundation pit support structure and construction method thereof |
| CN103074898B (en) * | 2013-01-18 | 2015-09-23 | 江苏鸿基科技有限公司 | Multi-row pile foundation pit support structure and construction method thereof |
| CN103882870A (en) * | 2014-03-24 | 2014-06-25 | 上海强劲地基工程股份有限公司 | Cement mixing pile and concrete pile meshing supporting structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20181124 |