CN207419448U - A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction - Google Patents
A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction Download PDFInfo
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- CN207419448U CN207419448U CN201721388501.7U CN201721388501U CN207419448U CN 207419448 U CN207419448 U CN 207419448U CN 201721388501 U CN201721388501 U CN 201721388501U CN 207419448 U CN207419448 U CN 207419448U
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Abstract
The utility model discloses a kind of NEW TYPE OF COMPOSITE foundation piles based on static pressure construction, belong to building field, including ground elevation and supporting course, compound foundation pile are provided between the ground elevation and supporting course, the compound foundation pile includes：The plain concrete layer and outer diameter of a diameter of d is the cricoid coarse sands layer of D, the coarse sands layer is uniformly filled on the outside of plain concrete layer, and the axle center of coarse sands layer and plain concrete layer is located at same straight line, the proportion between the diameter d of the plain concrete layer and the outer diameter D of coarse sands layer is arranged to d：D=5:8~3:4.By the above-mentioned means, the utility model can solve, conventional composite foundation pile (mainly CFG pileworks form) service efficiency is not high, and bearing capacity is weaker, by influence on groundwater it is larger the shortcomings that.
Description
Technical field
The utility model is related to building field, more particularly to a kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction.
Background technology
The compound foundation pile applied at present in engineering, the form mainly included and its feature possessed are as follows：
(1) granular media great soil group flexible compound foundation pile
Mainly there are the composite foundations forms such as broken stone pile, sand-gravel pile, cobble stake, steel slag pile, this form is chiefly used in large area
Change fill out, the monoblock types construction method such as vibroflotation is compacted, bearing capacity is limited, is chiefly used in the relatively low place processing formula of requirement for bearing capacity and applies
Work.
(2) semi-rigid compound foundation pile
Mainly comprising structures such as lime soil pile, lime pile, lime fly ash stake, rotary churning pile, deep-layer stirring (powder spray, slurry spray) stakes
Form, this kind of pile-type speed of application is very fast, and process is simple, easy to operate, and bearing capacity is not high, is mainly used for the relatively low stake of bearing capacity
Foundation construction.
(3) rigid composite foundation stake
Mainly include two kinds of forms of plain concrete pile and CFG stakes, two kinds of pile-type are mostly using hole drilling type construction, it can be achieved that certain
Construction depth, wherein plain concrete pile bearing capacity is higher but has approached the structure type of traditional pore-creating filling pile and (is only to leave out
Reinforcement cage structure)；And CFG due to use building waste material, cost is relatively low, but bearing capacity is relatively weak.
Conventional composite foundation pilework at present, is primarily present following defect：
(1) low construction efficiency, since conventional composite foundation pile mainly uses drilling construction, such as：Holing with slurry wall protection, long spiral shell
Rotary drill hole etc., this kind of usual speed of application of construction method is slower, is unfavorable for the composite foundation pile driving construction of the big scale of construction；
(2) traditional composite foundation pile-type is mainly drilled using building waste direct filling, and bearing capacity is limited；
(3) when running into the more soil layer of underground water content, building waste has by water traditional architecture rubbish compound foundation pile
After long period of soaking, soften the risk of sedimentation.
Utility model content
The utility model mainly solving the technical problems that provide a kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction,
It can solve that conventional composite foundation pile (mainly CFG pileworks form) service efficiency is not high, and bearing capacity is weaker, by underground water shadow
Ring the shortcomings that larger.
In order to solve the above technical problems, the technical solution that the utility model uses is：It provides a kind of based on static pressure method
The NEW TYPE OF COMPOSITE foundation pile of construction including ground elevation and supporting course, is provided with multiple between the ground elevation and supporting course
Foundation pile is closed, the compound foundation pile includes：The plain concrete layer and outer diameter of a diameter of d is the cricoid coarse sands layer of D, described thick
Layer of sand is uniformly filled on the outside of plain concrete layer, and the axle center of coarse sands layer and plain concrete layer is located at same straight line, and the element is mixed
Proportion between the diameter d of solidifying soil layer and the outer diameter D of coarse sands layer is arranged to d：D=5:8~3:4.
Preferably, the plain concrete layer is mixed by building waste and cement mortar.
Preferably, the stake holes of the coarse sands layer is made of static press piling equipment pore-forming.
Preferably, the ratio setting between the diameter d of the plain concrete layer and the outer diameter D of coarse sands layer is d：D=3:4.
The beneficial effects of the utility model are：1st, coarse sands layer is set in pile body surrounding, the function of possessing ejectment underground water is protected
The intensity and bearing capacity of stake core building waste structure have been demonstrate,proved, pile foundation is avoided to be impregnated by water, the risk of depression has occurred；2nd, to building rubbish
Rubbish carries out grouting behind shaft or drift lining construction, is allowed to cohesion consolidation, the characteristic for possessing plain concrete, substantially increases the vertical of compound foundation pile and holds
Carry power；3rd, constructed using static pressure type, speed of fulfiling hole is fast, and construction efficiency is high.
Description of the drawings
Fig. 1 is a kind of one preferred embodiment medium-sand seam of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction of the utility model
Pore-forming structure diagram；
Fig. 2 is the slip casting structure diagram of shown plain concrete layer；
Fig. 3 is a kind of pile body structure schematic diagram of the NEW TYPE OF COMPOSITE foundation pile based on static pressure construction of the utility model；
The mark of each component is as follows in attached drawing：1st, coarse sands layer, 2, plain concrete layer.
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
It please refers to Fig.1 to Fig.3, the utility model embodiment includes：
A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction including ground elevation and supporting course, is marked on the ground
Compound foundation pile is provided between high and supporting course, the compound foundation pile includes：The plain concrete layer 2 and outer diameter of a diameter of d
For the cricoid coarse sands layer 1 of D, the coarse sands layer 1 is uniformly filled in 2 outside of plain concrete layer, and coarse sands layer 1 and plain concrete layer
2 axle center is located at same straight line, and the proportion between the diameter d of the plain concrete layer 2 and the outer diameter D of coarse sands layer 1 is set
For d：D=3:4, in the present embodiment, the diameter d of plain concrete layer 2 is arranged to 600mm, and the outer diameter D of coarse sands layer 1 is arranged to
800mm.In the utility model, annular coarse sands layer outside novel pile core is set, possesses the function of ejectment underground water, prevents a core
Building waste contacts directly with underground water and bearing capacity of pile foundation is caused to reduce, the risk of sedimentation.
In the utility model, plain concrete layer is mixed by building waste and cement mortar, with close plain coagulation
The compression strength value of soil, bearing capacity of pile foundation are much larger than conventional composite ground (CFG) stake.
Further, the stake holes of the coarse sands layer is made of static press piling equipment pore-forming, improves soft clay area construction
Pore-forming efficiency.
The work progress of the utility model is as follows：
First, by the steel sleeve of diameter about 800mm, bottom is connected with closed pile top, using static pile press construction pore-creating,
Steel sleeve is extracted after pore-forming, can be repeatedly used；
2nd, the PVC bellowss of diameter about 600mm are placed in stake holes center, coarse sand is filled outside bellows, fills and builds in pipe
Building refuse；
3rd, Grouting Pipe is inserted into building waste, injects cement mortar, and uses vibrating head vibration compacting, solidification and maintenance
After, it is that the composite foundation pile driving construction is completed.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (3)
1. a kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction, including ground elevation and supporting course, in the ground elevation
Compound foundation pile is provided between supporting course, which is characterized in that the compound foundation pile includes：The plain concrete of a diameter of d
Layer and the cricoid coarse sands layer that outer diameter is D, the coarse sands layer are uniformly filled on the outside of plain concrete layer, and coarse sands layer and plain coagulation
The axle center of soil layer is located at same straight line, and the proportion between the diameter d of the plain concrete layer and the outer diameter D of coarse sands layer is set
For d：D=5:8~3:4.
2. a kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction according to claim 1, which is characterized in that described thick
The stake holes of layer of sand is made of static press piling equipment pore-forming.
A kind of 3. NEW TYPE OF COMPOSITE foundation pile based on static pressure construction according to claim 1, which is characterized in that the element
Ratio setting between the diameter d of concrete layer and the outer diameter D of coarse sands layer is d：D=3:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721388501.7U CN207419448U (en) | 2017-10-26 | 2017-10-26 | A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721388501.7U CN207419448U (en) | 2017-10-26 | 2017-10-26 | A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207419448U true CN207419448U (en) | 2018-05-29 |
Family
ID=62309732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721388501.7U Active CN207419448U (en) | 2017-10-26 | 2017-10-26 | A kind of NEW TYPE OF COMPOSITE foundation pile based on static pressure construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207419448U (en) |
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2017
- 2017-10-26 CN CN201721388501.7U patent/CN207419448U/en active Active
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