CN207987927U - Multistage echelon foundation pit supporting system - Google Patents
Multistage echelon foundation pit supporting system Download PDFInfo
- Publication number
- CN207987927U CN207987927U CN201820069855.3U CN201820069855U CN207987927U CN 207987927 U CN207987927 U CN 207987927U CN 201820069855 U CN201820069855 U CN 201820069855U CN 207987927 U CN207987927 U CN 207987927U
- Authority
- CN
- China
- Prior art keywords
- level
- support pile
- order
- guan liang
- foundation pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Foundations (AREA)
Abstract
The utility model discloses a kind of multistage echelon foundation pit supporting system, support system includes three-level supporting construction, water-seal pile in first order supporting construction is arranged between first order support pile stake, first order Guan Liang is arranged at the top of first order support pile, second level Guan Liang in the supporting construction of the second level is arranged at the top of the support pile of the second level, third level Guan Liang in third level supporting construction is arranged at the top of third level support pile, first order support pile side, which corresponds at the Guan Liang position of the second level, is fixedly installed first order purlin, it is connected with each other by first order coupling beam between first order purlin and second level Guan Liang, it is connected with each other by first order cant beam between first order Guan Liang and second level Guan Liang；Second level support pile side, which corresponds at third level Guan Liang position, is fixedly installed second level purlin, is connected with each other by second level coupling beam between second level purlin and third level Guan Liang, is connected with each other by second level cant beam between second level Guan Liang and third level Guan Liang.
Description
Technical field
The utility model discloses a kind of support system, and especially a kind of multistage echelon foundation pit supporting system belongs to foundation pit work
Journey technical field.
Background technology
With the quickening of urbanization paces, to meet the functions such as growing orbit traffic transfer, business, parking,
The more nervous dense urban centers of land used, underground space development degree is higher and higher, and scale is increasing.It is more and more deep
Base pit engineering shows the features such as area is big, depth is deep, surrounding enviroment are complicated, Deformation control requirement is stringent, the duration is tight, conventional to prop up
Watch box system has been difficult to meet numerous requirements simultaneously.Stake（Wall）There are problems for anchor system：The limitation of more ground government uses anchor cable, needs
Occupy the red line external space, long in time limit, formation condition bad adaptability etc..Stake（Wall）There are problems for support body system：Inner support system with build
It builds underground structure to intersect, cubic metre of earth and stone outward transport is limited, and Underground Construction is limited, and it is complicated that support pours dismounting construction long in time limit.
There are problems for double-row pile, cantilever pile：Supporting depth is limited, Deformation control is poor.
Invention content
It cannot meet the shortcomings that technology requires, this practicality for system of deep foundation pit support in the prior art mentioned above
A kind of multistage echelon foundation pit supporting system of novel offer, uses rigid joint to connect multiline pile classification echelon to form rigid frame body
System, can solve the above problems.
The utility model solve its technical problem the technical solution adopted is that：A kind of multistage echelon foundation pit supporting system, branch
Watch box system includes three-level supporting construction, and first order supporting construction includes first order support pile, water-seal pile and first order Guan Liang, sealing
Stake is arranged between first order support pile stake, and first order Guan Liang is arranged at the top of first order support pile, and second level supporting construction includes
Second level support pile and second level Guan Liang, second level Guan Liang are arranged at the top of the support pile of the second level, and third level supporting construction includes
Third level support pile and third level Guan Liang, third level Guan Liang are arranged at the top of third level support pile, first order support pile side pair
It should be fixedly installed first order purlin at the Guan Liang position of the second level, pass through the first order between first order purlin and second level Guan Liang
Coupling beam is connected with each other, and is connected with each other by first order cant beam between first order Guan Liang and second level Guan Liang；Second level support pile side
Face, which corresponds at third level Guan Liang position, is fixedly installed second level purlin, by the between second level purlin and third level Guan Liang
Two level coupling beam is connected with each other, and is connected with each other by second level cant beam between second level Guan Liang and third level Guan Liang.
The technical solution that the utility model solves the use of its technical problem further comprises：
The anchorage length of the first order support pile is greater than or equal to 1.2 times of foundation depth.
The second level support pile anchorage length is greater than or equal to first order podium level.
The third level support pile anchorage length is greater than or equal to 2.5 times of second level podium level.
Areas outside is fixedly installed first order jet face layer, third between the second level Guan Liang and second level purlin
Areas outside is fixedly installed second level jet face layer between grade Guan Liang and Foundation Pit baseplane.
The stake of the first order support pile is long and stake diameter is all higher than second level support pile and third level support pile；The third level
The stake of support pile is long and stake diameter is more than second level support pile.
Described each classification height determines according to Different Strata and foundation depth, but third level support pile height be less than or
Equal to 0.25 times foundation depth.
The distance between described first order support pile and second level support pile are greater than or equal to 3 times of support pile stake diameter；
The distance between second level support pile and third level support pile are greater than or equal to 3 times of support pile stake diameter.
The first order support pile to the width between third level support pile is greater than or equal to 0.5H.
The utility model has the beneficial effects that：The utility model is simple in structure, easy for construction, the deep, excavation area to depth
Big foundation pit can provide the support system of safe and reliable, effective control deformation.
The utility model is described further below in conjunction with the drawings and specific embodiments.
Description of the drawings
Fig. 1 is the utility model section structural schematic diagram.
In figure, 1- first order support piles, 2- water-seal piles, 3- first order Guan Liangs, the second level 4- support pile, 5- third level supportings
Stake, 6- first order cant beams, 7- first order purlins, 8- first order coupling beams, 9- first order jet face layers, the second level 10- Guan Liang, 11-
Third level Guan Liang, the second level 12- purlin, the second level 13- cant beam, the second level 14- coupling beam, the second level 15- jet face layer.
Specific implementation mode
The present embodiment is the preferred embodiments of the present invention, other its all principles and basic structure are identical as the present embodiment
Or it is approximate, within scope of protection of the utility model.
Attached drawing 1 is please referred to, the utility model is a kind of multistage echelon foundation pit supporting system comprising three-level supporting construction,
First order supporting construction includes first order support pile 1, water-seal pile 2 and first order Guan Liang 3, and water-seal pile 2 and first order support pile 1 are simultaneously
Row's setting, water-seal pile 2 are arranged between adjacent first order support pile 1, and the setting of first order Guan Liang 3 is pushed up in first order support pile 1
Portion, in the present embodiment, the anchorage length of first order support pile 1（I.e. first order support pile 1 enters Foundation Pit bottom length）According to not
It is determined with stratum and foundation depth, the anchorage length of usual first order support pile 1 is greater than or equal to 1.2H（H is foundation depth,
I.e. ground level to Foundation Pit bottom height）；Second level supporting construction includes second level support pile 4 and second level Guan Liang 10, and second
The setting of grade Guan Liang 10 is in 4 top of second level support pile, the present embodiment, 4 anchorage length of second level support pile（That is second level supporting
Stake 4 enters Foundation Pit bottom length）It is determined according to Different Strata and foundation depth, the anchorage length of usual second level support pile 4
More than or equal to 1.0H1（H1 is first order podium level, the i.e. height from 3 top surface of first order Guan Liang to Foundation Pit bottom）；Third
Grade supporting construction includes third level support pile 5 and third level Guan Liang 11, and the setting of third level Guan Liang 11 is pushed up in third level support pile 5
Portion, in the present embodiment, 5 anchorage length of third level support pile（I.e. third level support pile 5 enters Foundation Pit bottom length）According to difference
Stratum and foundation depth determine that the anchorage length of usual third level support pile 5 is greater than or equal to 2.5H2（H2 is flat for the second level
Platform height, the i.e. height from 10 top surface of second level Guan Liang to Foundation Pit bottom）.In the present embodiment, water-seal pile 2 should enter relatively impermeable
Water layer and enter to cheat bottom（Hole bottom refers to Foundation Pit bottom）Depth should be greater than 2m.In the present embodiment, first order support pile is as main sealing
When structure, clear distance is less than or equal to 500mm between the stake of first order support pile 1；Between second level support pile and third level support pile stake
Clear distance matches between stake away from first order support pile 1.
In the present embodiment, 1 side of first order support pile, which corresponds at 10 position of second level Guan Liang, is fixedly installed the first order
Purlin 7 is connected with each other between first order purlin 7 and second level Guan Liang 10 by first order coupling beam 8, first order Guan Liang 3 and second
It is connected with each other by first order cant beam 6 between grade Guan Liang 10；Support pile 4 side in the second level corresponds at 11 position of third level Guan Liang
It is fixedly installed second level purlin 12, is interconnected by 14 phase of second level coupling beam between second level purlin 12 and third level Guan Liang 11
It connects, is connected with each other by second level cant beam 13 between second level Guan Liang 10 and third level Guan Liang 11；Second level Guan Liang 10 and second
Areas outside is fixedly installed first order jet face layer 9 between grade purlin 12, and in the present embodiment, first order jet face layer 9 uses
Cement mortar structure, areas outside is fixedly installed second level jet face layer between third level Guan Liang 11 and Foundation Pit baseplane
15, second level jet face layer 15 uses cement mortar structure.
In the present embodiment, main bearing member of the first order support pile 1 as the utility model, first order support pile 1
The long and stake diameter of stake is all higher than second level support pile 4 and third level support pile 5；The stake of third level support pile 5 is long and stake diameter is more than the
Two level support pile 4.In the present embodiment, each height for being classified support pile（To the distance of bottom of foundation ditch plane i.e. at the top of support pile）Root
It is determined according to Different Strata and foundation depth, 5 height of third level support pile is less than or equal to 0.25H（H is foundation depth）.
In the present embodiment, support pile array pitch at different levels are preferably equidistant, and the array pitch of support piles at different levels is greater than or equal to 3 times of stake
The overall width of the support pile stake diameter of diameter minimum, support system is greater than or equal to 0.5H（H is foundation depth）, in the utility model
The overall width of the support system refers to that first order support pile to the width between third level support pile, further includes simultaneously
First order support pile and the third level support pile width of itself, with first order support pile to the width institute between third level support pile
The meaning of statement is identical.
In the present embodiment, coupling beams at different levels and corresponding support pile are by reserved steel bar in support pile and rear bar planting and tie
It surrounds purlin and forms rigid joint.Cant beams at different levels are connect with the reserved steel bar of top Guan Liang, are bound simultaneously with lower part Guan Liang reinforcing bar, together
It pours to be formed.
In the utility model, support piles at different levels include more than one, between level-one support pile use corresponding Guan Liang
Connection, multistage support stake are distributed in a ring each along foundation pit internal structure.
The utility model mainly includes the following steps when implementing：
Step S1, construction site carries out finishing operations, unwrapping wire positioning is carried out to supporting construction, to ensure that it is vertically arranged.
Step S2, it constructs on ground to first order support pile 1 and water-seal pile 2, then carries out corresponding first order Guan Liang 3
Construction is built.
Step S3, layer and section earth excavation is high to 4 stake top top mark of second level support pile.
Step S4, it constructs to second level support pile 4.
Step S5, corresponding second level Guan Liang 11, first order cant beam 6, first order purlin 7 and the first cascade are built in construction
Beam 8.
Step S6, layer and section earth excavation is high to 5 stake top top mark of third level support pile.
Step S7, it constructs to third level support pile 5.
Step S8, corresponding third level Guan Liang 11, second level cant beam 13, second level purlin 12 and the second cascade are built in construction
Beam 14.
Step S9, layer and section earth excavation is to Foundation Pit bottom.
In the utility model, due to supporting construction at different levels all be using reinforced concrete structure constitute, so, construct to it
Main binding including means for supporting reinforcement steel bar is laid with and concrete pours.
The utility model is simple in structure, easy for construction, foundation pit deep to depth, that excavation area is big can provide it is safe and reliable,
The effectively support system of control deformation.
Claims (9)
1. a kind of multistage echelon foundation pit supporting system, it is characterized in that：The support system includes three-level supporting construction, the first order
Supporting construction includes first order support pile, water-seal pile and first order Guan Liang, and water-seal pile is arranged between first order support pile stake, and first
Grade Guan Liang is arranged at the top of first order support pile, and second level supporting construction includes second level support pile and second level Guan Liang, and second
Grade Guan Liang is arranged at the top of the support pile of the second level, and third level supporting construction includes third level support pile and third level Guan Liang, third
Grade Guan Liang is arranged at the top of third level support pile, and first order support pile side, which corresponds at the Guan Liang position of the second level, to be fixedly installed
First order purlin is connected with each other between first order purlin and second level Guan Liang by first order coupling beam, first order Guan Liang and second
It is connected with each other by first order cant beam between grade Guan Liang；Second level support pile side, which corresponds at third level Guan Liang position to fix, to be set
Be equipped with second level purlin, be connected with each other by second level coupling beam between second level purlin and third level Guan Liang, second level Guan Liang with
It is connected with each other by second level cant beam between third level Guan Liang.
2. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The first order support pile it is embedding
Gu length is greater than or equal to 1.2 times of foundation depth.
3. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The second level support pile build-in
Length is greater than or equal to first order podium level.
4. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The third level support pile build-in
Length is greater than or equal to 2.5 times of second level podium level.
5. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The second level Guan Liang and second
Areas outside is fixedly installed first order jet face layer between grade purlin, between third level Guan Liang and Foundation Pit baseplane outside region
Side is fixedly installed second level jet face layer.
6. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The stake of the first order support pile
Long and stake diameter is all higher than second level support pile and third level support pile；The stake diameter of third level support pile is more than second level support pile.
7. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The third level support pile height
Less than or equal to 0.25 times foundation depth.
8. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The first order support pile and
The distance between two level support pile is greater than or equal to 3 times of support pile stake diameter；Between second level support pile and third level support pile
Distance be greater than or equal to 3 times of support pile stake diameter.
9. multistage echelon foundation pit supporting system according to claim 1, it is characterized in that：The first order support pile is to
Width between three-level support pile is greater than or equal to 0.5H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069855.3U CN207987927U (en) | 2018-01-16 | 2018-01-16 | Multistage echelon foundation pit supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069855.3U CN207987927U (en) | 2018-01-16 | 2018-01-16 | Multistage echelon foundation pit supporting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207987927U true CN207987927U (en) | 2018-10-19 |
Family
ID=63819504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820069855.3U Active CN207987927U (en) | 2018-01-16 | 2018-01-16 | Multistage echelon foundation pit supporting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207987927U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577346A (en) * | 2019-01-02 | 2019-04-05 | 深圳市前海世茂投资管理有限公司 | A kind of foundation pit supporting system and its method of construction |
| CN111021369A (en) * | 2019-12-31 | 2020-04-17 | 深圳宏业基岩土科技股份有限公司 | Chair type double-row pile anchor construction method |
| CN111395354A (en) * | 2020-03-20 | 2020-07-10 | 中国建筑西南勘察设计研究院有限公司 | Multi-stage large-row-spacing pile combined supporting structure and foundation pit excavation method thereof |
| CN111472362A (en) * | 2020-05-23 | 2020-07-31 | 江苏地基工程有限公司 | Inclined support foundation pit supporting system and construction method |
| CN113513032A (en) * | 2021-03-23 | 2021-10-19 | 深圳市工勘岩土集团有限公司 | Three-row pile gravity dam combined retaining structure for filled high slope |
| CN114108645A (en) * | 2021-11-02 | 2022-03-01 | 广州地铁设计研究院股份有限公司 | Foundation pit supporting structure adjacent to underground engineering and construction method thereof |
-
2018
- 2018-01-16 CN CN201820069855.3U patent/CN207987927U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577346A (en) * | 2019-01-02 | 2019-04-05 | 深圳市前海世茂投资管理有限公司 | A kind of foundation pit supporting system and its method of construction |
| CN111021369A (en) * | 2019-12-31 | 2020-04-17 | 深圳宏业基岩土科技股份有限公司 | Chair type double-row pile anchor construction method |
| CN111395354A (en) * | 2020-03-20 | 2020-07-10 | 中国建筑西南勘察设计研究院有限公司 | Multi-stage large-row-spacing pile combined supporting structure and foundation pit excavation method thereof |
| CN111472362A (en) * | 2020-05-23 | 2020-07-31 | 江苏地基工程有限公司 | Inclined support foundation pit supporting system and construction method |
| CN113513032A (en) * | 2021-03-23 | 2021-10-19 | 深圳市工勘岩土集团有限公司 | Three-row pile gravity dam combined retaining structure for filled high slope |
| CN114108645A (en) * | 2021-11-02 | 2022-03-01 | 广州地铁设计研究院股份有限公司 | Foundation pit supporting structure adjacent to underground engineering and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207987927U (en) | Multistage echelon foundation pit supporting system | |
| CN100543241C (en) | Using the half contrary method of doing in a kind of underground construction one more | |
| CN101914925A (en) | Basement by using optimized composite prefabricated arch wall as external wall | |
| CN102758632A (en) | Rock stratum double initial support layering method for establishing large-scale underground structure | |
| CN104389318B (en) | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof | |
| CN206512723U (en) | A kind of multiple-layer horizontal coupling beam double-row pile and underground pipe gallery monolithic construction | |
| CN101117800A (en) | Method for one-pile-three-use in underground engineering | |
| CN105064397A (en) | Open excavation construction method for expanding excavation of station on metro interzone shield tunnel foundation | |
| CN101418569B (en) | Optimization complex arch wall combining prefabricated arch leaf, support and major structure | |
| CN210598987U (en) | Subway station based on single-layer four-guide-hole and middle-guide-hole inner pile foundation | |
| CN103103988A (en) | Foundation ditch construction method of horizontal bracing structure of central island floor slaps | |
| CN102425171A (en) | Forward-backward constructing method for central island of deep and large foundation pit | |
| CN206928305U (en) | A kind of rigid passive area buttress type supporting construction | |
| CN109518699A (en) | Miniature steel pipe pile adds grid spray anchor deep foundation ditch combination supporting scheme system and its construction method | |
| CN112095626A (en) | Foundation pit supporting structure serving as corridor underpinning pile foundation and construction method thereof | |
| CN101353896A (en) | Semi-reverse construction method for ultra-large-diameter and ultra-buried depth storage tank | |
| CN207419519U (en) | A kind of campshed supporting is with helping the structural system that arm-type barricade is combined | |
| CN206752667U (en) | A kind of basement barrier wall structure | |
| CN211500658U (en) | Shallow tunnel supporting construction that nearly connects that buries suitable for sand ground | |
| CN102330436A (en) | Composite retaining structure and composite retaining method for half geotechnical layer ultradeep round spiral flow tank | |
| CN104005414B (en) | Large-size rebar cast in place concrete pile supports the constructional method of column | |
| CN107326932B (en) | Quasi-semi-reverse construction method for underground garage | |
| CN113235613A (en) | Newly-built foundation pit excavation supporting method using adjacent existing fender post | |
| CN208917850U (en) | A kind of miniature steel pipe pile adds grid to spray anchor deep foundation ditch combination supporting scheme system | |
| CN205804383U (en) | A kind of Whirlwind tank water-stop curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |