CN205475218U - Settlement by soaking foundation pile basis reduces burden frictional resistance structure - Google Patents
Settlement by soaking foundation pile basis reduces burden frictional resistance structure Download PDFInfo
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- CN205475218U CN205475218U CN201620054981.2U CN201620054981U CN205475218U CN 205475218 U CN205475218 U CN 205475218U CN 201620054981 U CN201620054981 U CN 201620054981U CN 205475218 U CN205475218 U CN 205475218U
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- China
- Prior art keywords
- pile foundation
- settlement
- soaking
- pile
- layer
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- 238000002791 soaking Methods 0.000 title claims abstract description 26
- 239000002689 soil Substances 0.000 claims abstract description 46
- 239000010410 layer Substances 0.000 claims abstract description 34
- 239000012791 sliding layer Substances 0.000 claims abstract description 12
- 230000007935 neutral effect Effects 0.000 claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Abstract
Settlement by soaking foundation pile basis reduces burden frictional resistance structure to the design stake that effectively reduces settlement by soaking foundation pile basis is long, practices thrift engineering cost by a wide margin. It gets into the pile foundation of stablizing the soil layer to pass the collapsible soil layer including the lower part. The collapsible soil in situ sets up the sliding layer that its section surrounded the pile foundation lateral wall outside the pile foundation, the pile bolck of neutral point to pile foundation is calculated to the length of this sliding layer by the collapsible soil layer.
Description
Technical field
This utility model relates to the pile foundation in civil engineering, particularly to a kind of collapsible loess foundation
Other have the reduction negative friction structure on ground king-pile basis, settlement by soaking ground.
Background technology
Pile foundation Application comparison is extensive, is effectively to improve foundation bearing capacity and reduce foundation settlement deformation
Engineering measure.Conventional pile-type mainly have precast reinforced concrete pile, prestressed reinforced concrete stake,
Bore (punching) hole pouring pile, manually digging hole filling pile, steel-pipe pile etc..
Pile foundation is when collapsible sites, and pile body is supported on stable compact soil through settlement by soaking soil layer
Layer or build-in are in basement rock, and in the case of settlement by soaking soil layer saturated yielding, pile foundation consolidates soil layer still by deep
There is enough Compressive Bearing Capacities, so that it is guaranteed that the superstructure that pile foundation is supported (as building cushion cap,
Abutment etc.) stablize, and do not produce excessive depression and inclination.
When pile body is through settlement by soaking soil layer, pile body calculates the position of more than neutral point and bears negative friction,
Causing pile foundation to anchor into the degree of depth of firm soil layer relatively deeply, stake is long.It is particularly at deep saturated yielding
Property Canal in Loess Area pile foundation, affected by negative friction, born bigger downdrag, designed stake
Long sometimes for reaching more than tens meters, the requirement of bearing capacity could be met.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of wet-sinking soil pile foundation and reduces
Negative friction constructs, and to effectively reduce the designing pile length of wet-sinking soil pile foundation, significantly saves work
Journey cost.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is as follows:
Wet-sinking soil pile foundation of the present utility model reduces negative friction structure, passes wet including bottom
Fall into property soil layer and enter the pile foundation of steady soil, it is characterized in that: in pile foundation in described settlement by soaking soil layer
Outer arranging its section ring sliding layer around pile foundation sidewall, the length of this sliding layer is by settlement by soaking soil layer meter
Calculate neutral point to the stake top of pile foundation.
The beneficial effects of the utility model are, sliding layer by the sidewall of settlement by soaking soil layer and pile foundation every
Open, reduce or substantially eliminate settlement by soaking soil layer and act on the negative friction of pile foundation sidewall so that saturated yielding
Property soil layer and pile foundation under less resistance, there is relative displacement, thus effectively reduce collapsible soil
The layer negative friction to pile foundation, reduces the downdrag that pile foundation is born, effectively reduces pile foundation
Designing pile length and construction costs.
Accompanying drawing explanation
This specification includes following two width accompanying drawings:
Fig. 1 is the facade structure that this utility model wet-sinking soil pile foundation reduces negative friction structure
Schematic diagram；
Fig. 2 is the cross-section structure that this utility model wet-sinking soil pile foundation reduces negative friction structure
Schematic diagram
Component name shown in figure and corresponding labelling: pile foundation 10, sliding layer 20, settlement by soaking
Soil layer A, steady soil B, settlement by soaking soil layer neutral point C.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Seeing figures.1.and.2, wet-sinking soil pile foundation of the present utility model reduces negative friction structure,
Pass settlement by soaking soil layer A including bottom and enter the pile foundation 10 of steady soil B.Described collapsible soil
Arranging its section ring sliding layer 20 around pile foundation 10 sidewall outside pile foundation 10 in layer A, this is sliding
The length of dynamic layer 20 is by the stake top of settlement by soaking soil layer neutral point C to pile foundation 10.
Settlement by soaking soil layer neutral point C refers to, in settlement by soaking soil layer A, pile foundation 10 is produced positive side and rubs
Resistance and the separation of negative friction.
The sidewall of settlement by soaking soil layer A with pile foundation 10 is separated by sliding layer 20, reduces or substantially disappears
Except settlement by soaking soil layer A acts on the negative friction of pile foundation 10 sidewall so that settlement by soaking soil layer A with
There is relative displacement in pile foundation 10 under less resistance, thus effectively reduces settlement by soaking soil layer A
Negative friction to pile foundation 10, reduces the downdrag that pile foundation 10 is born, effectively reduces stake
The designing pile length on basis 10 and construction costs.
Seeing figures.1.and.2, described sliding layer 20 is arranged around pile foundation 10 sidewall for one week, fixing
Being arranged in settlement by soaking soil layer A, its inner surface is close to pile foundation 10 sidewall surfaces.Described slip
Layer 20 typically can use the material with lubrication to be made, and such as graphite, has lubrication and makees
Synthetic material, there is the carriage etc. of lubrication.
The above principle more of the present utility model that simply explain through diagrams, is not intended to this practicality
Novel be confined to shown in and described concrete structure and the scope of application in, therefore every be likely utilized
Corresponding amendment and equivalent, belong to the scope of the claims of this utility model application.
Claims (2)
1. wet-sinking soil pile foundation reduces negative friction structure, passes settlement by soaking soil layer including bottom
(A) enter the pile foundation (10) of steady soil (B), it is characterized in that: described settlement by soaking soil layer (A)
Outside inherent pile foundation (10), its section ring sliding layer (20) around pile foundation (10) sidewall is set,
The length of this sliding layer (20) is calculated neutral point (C) to pile foundation (10) by settlement by soaking soil layer
Stake top.
2. wet-sinking soil pile foundation as claimed in claim 1 reduces negative friction structure, and it is special
Levy and be: described sliding layer (20) is fixedly installed in settlement by soaking soil layer (A), its inner surface and stake
Basis (10) sidewall surfaces is close to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054981.2U CN205475218U (en) | 2016-01-20 | 2016-01-20 | Settlement by soaking foundation pile basis reduces burden frictional resistance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054981.2U CN205475218U (en) | 2016-01-20 | 2016-01-20 | Settlement by soaking foundation pile basis reduces burden frictional resistance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205475218U true CN205475218U (en) | 2016-08-17 |
Family
ID=56638016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620054981.2U Expired - Fee Related CN205475218U (en) | 2016-01-20 | 2016-01-20 | Settlement by soaking foundation pile basis reduces burden frictional resistance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205475218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544532A (en) * | 2016-01-20 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Negative frictional resistance reduction structure of collapsibility subgrade pile foundation |
| CN108277801A (en) * | 2018-01-25 | 2018-07-13 | 武汉大学 | A kind of device and method of abatement prefabricated tubular pile negative friction |
| CN113833007A (en) * | 2021-09-23 | 2021-12-24 | 西安理工大学 | Pile foundation processing method for eliminating negative friction resistance of collapsible loess |
-
2016
- 2016-01-20 CN CN201620054981.2U patent/CN205475218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544532A (en) * | 2016-01-20 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Negative frictional resistance reduction structure of collapsibility subgrade pile foundation |
| CN108277801A (en) * | 2018-01-25 | 2018-07-13 | 武汉大学 | A kind of device and method of abatement prefabricated tubular pile negative friction |
| CN113833007A (en) * | 2021-09-23 | 2021-12-24 | 西安理工大学 | Pile foundation processing method for eliminating negative friction resistance of collapsible loess |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |