CN206706806U - A kind of dual composite foundation of rigid and flexible pile - Google Patents
A kind of dual composite foundation of rigid and flexible pile Download PDFInfo
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- CN206706806U CN206706806U CN201720552517.0U CN201720552517U CN206706806U CN 206706806 U CN206706806 U CN 206706806U CN 201720552517 U CN201720552517 U CN 201720552517U CN 206706806 U CN206706806 U CN 206706806U
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Abstract
The utility model provides a kind of dual composite foundation of rigid and flexible pile, including rigid pile, flexible pile, pile cover, mattress layer and basis；Rigid pile and flexible pile arranged for interval in the plane, pile cover is shaped as step type and is arranged in rigid pile, the edge of pile cover and the distance of flexible pile are more than the half distance between rigid pile and flexible pile and less than rigid piles and the distance of flexible pile, rigid pile stake top sets 30mm thickness mattress layers, and basis instrument is above mattress layer.The utility model institute pile cover is extended downwardly successively using stepped by multiple concentric turns, make when basic sedimentation downwards, pile cover is passed to first topmost, then slowly extending to the bottom of pile cover makes power uniformly spread alleviation pile cover stress jumping phenomenon during transmitting downwards, rigid pile only assume responsibility for the fractional load of building simultaneously, and another part load is undertaken by inter-pile soil, can suitably reduce the bearing requirements of rigid pile, part pile body expense is saved, while can accelerating construction progress.
Description
Technical field
It the utility model is related to a kind of ground in building field, and in particular to a kind of dual composite foundation of rigid and flexible pile.
Background technology
In conventional composite ground, the stress distribution between stake soil is uneven, causes the application of the composite foundation technology
Necessarily being restricted with effect, its main cause has two aspects, when, in conventional composite ground, rigid pile rigidity is with respect to stake
Between soil, its rigidity is big, and most of load is carried by rigid pile foundation first, inter-pile soil carrying very little, unless rigid pile occur
After larger compression sedimentation, inter-pile soil side participates in carrying.Second, for muddy soft soil or similar foundation in saturated soft soil
In, because natural foundation bearing capacity is too low, its rigidity differs bigger with rigid pile, can not utilize this during conventional composite Foundation Design
The partly bearing capacity of weak subsoil, so traditional composite foundation is not suitable for muddy soft soil or similar soft layer.
Utility model content
Problem to be solved in the utility model is provided a kind of hard and soft for the above-mentioned deficiency in the presence of prior art
The property dual composite foundation of stake realizes that pile-soil stress is redistributed.
To achieve the above object, the utility model employs following technical scheme：A kind of rigid and flexible pile is dual compoundly
Base, including rigid pile, flexible pile, pile cover, mattress layer and basis；The rigid pile is spaced cloth in the plane with the flexible pile
Put, the pile cover is shaped as step type and is arranged in the rigid pile, the distance at the edge of the pile cover and the flexible pile
It is described firm more than the half distance between the rigid pile and flexible pile and less than the rigid pile and the distance of flexible pile
Property stake stake top set the thick mattress layers of 30mm, the basis instrument is above the mattress layer.
Further, the rigid pile stake top is to divide into 20cm*20cm without muscle spread foundation, the no muscle spread foundation both ends
Border on respectively with the rigid pile and the flexible pile.
Further, the no muscle spread foundation sets expansion joint with the rigid pile and the flexible pile boundary respectively.
Compared to prior art, the utility model has the advantages that：Rigid pile described in the utility model with it is described
Flexible pile arranged for interval in the plane, i.e., left and right and it is spaced up and down, spatially forms three not with depth together with the soil body
Same rigidity gradient, the rigid pile use pile for prestressed pipe, and the flexible pile uses lime pile；The pile cover is using stepped
Extended downwardly successively by multiple concentric turns, make, when the basis sedimentation downwards, to pass to the pile cover first topmost, so
The bottom of the pile cover is slowly extended to afterwards make power uniformly spread the alleviation pile cover stress during transmitting downwards dash forward
Become phenomenon, the pile cover be with subsoil modulus of compressibility similar in flexible pile cap, by setting the flexible pile water swelling
Compacted soil layer, soil moisture content is reduced, while extrude inter-pile soil, so as to improve inter-pile soil compactness and bearing capacity, increased simultaneously
The side friction of the rigid pile；The thick mattress layers of 30mm are set in the rigid pile stake top, further improve basis collaboration work
Make ability；The edge of the pile cover is that bottom outer ring and the distance of the flexible pile are more than the rigid pile and flexible pile simultaneously
Between distance half and make while save the pile cover cost less than the distance of the rigid pile and flexible pile described
Pile cover by its lower end transmit during power can the covering stake of maximum area see native contact area, the rigid pile only undertakes
The fractional load of building, another part load are undertaken by inter-pile soil, improve soil body bearing capacity up to 20~50%, this
Sample, under conditions of equal bearing capacity is ensured, the bearing requirements of the rigid pile can be suitably reduced, save part pile body and take
With, while can accelerating construction progress.
Further advantage, target and feature of the present utility model embody part by following explanation, and part will also pass through
Research of the present utility model and practice are understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is a kind of dual composite foundation structure schematic diagram of rigid and flexible pile of the utility model.
Fig. 2 is that a kind of dual composite foundation of rigid and flexible pile of the utility model arranges schematic diagram.
Fig. 3 is that the utility model sets schematic diagram without muscle spread foundation.
Embodiment
In order that technological means, creation characteristic, reached purpose that the utility model is realized more understand and are easy to acting on
Understand, the utility model is further elaborated with reference to the accompanying drawings and detailed description：
The utility model proposes a kind of dual composite foundation of rigid and flexible pile, including rigid pile 1, flexible pile 2, pile cover 3, cotton-padded mattress
Bed course 4 and basis 5；Arranged for interval, the pile cover 3 are shaped as step type simultaneously to the rigid pile 1 in the plane with the flexible pile 2
It is arranged in the rigid pile 1, the distance at the edge of the pile cover 3 and the flexible pile 2 is more than the rigid pile 1 and flexible pile
Half distance between 2 and less than the distance of the rigid pile 1 and flexible pile 2, the stake top of rigid pile 1 sets 30mm thickness
The mattress layer 4, described basic 5 are arranged on the top of mattress layer 4.
Rigid pile described in the utility model and the flexible pile arranged for interval in the plane, i.e. left and right be spaced up and down,
Three different rigidity gradients spatially are formed with depth together with the soil body, the rigid pile uses pile for prestressed pipe, described
Flexible pile uses lime pile；The pile cover is extended downwardly successively using stepped by multiple concentric turns, make when the basis to
During lower sedimentation, the pile cover is passed to first topmost, then slowly extending to the bottom of the pile cover makes power transmit downwards
During uniformly spread the alleviation pile cover stress jumping phenomenon, the pile cover for subsoil modulus of compressibility similar in
Flexible pile cap, by setting the compacted soil layer of flexible pile water swelling, soil moisture content is reduced, while extrude inter-pile soil, from
And inter-pile soil compactness and bearing capacity are improved, while increase the side friction of the rigid pile；Set in the rigid pile stake top
The thick mattress layers of 30mm, further improve basic collaborative work ability；Simultaneously the edge of the pile cover be bottom outer ring with
The distance of the flexible pile be more than between the rigid pile and flexible pile the half of distance and less than the rigid pile with it is soft
Property stake distance make the pile cover can maximum area during transmitting power by its lower end while save the pile cover cost
Covering stake see soil contact area, the rigid pile only assume responsibility for building fractional load, another part load is by between stake
Soil undertakes, and improves soil body bearing capacity up to 20~50%, so, under conditions of equal bearing capacity is ensured, can suitably drop
The bearing requirements of the low rigid pile, part pile body expense is saved, while can accelerating construction progress.
As specific embodiment, the no section of muscle spread foundation 7 is arranged to 20cm*20cm, and its length is according to described firm
Horizontal range between property stake 1 and the flexible pile 2 and set.
As specific embodiment, the stake top of rigid pile 1 is expanded with dividing into 20cm*20cm without muscle spread foundation 7, the no muscle
Exhibition basis 7 is made up of materials such as cyclopean concrete, dirt and tabias forms elastic foundation, when described basic 5 settle,
The mattress layer 4 for ramming and filling out using graded broken stone is given in first power transmission, and the mattress layer 4 passes to the pile cover 3 of step type, by
The dispersion force of pile cover 3 makes settling capacity diffuse to its bottom, by being transmitted to the no muscle for its bottom maximum area of pile cover 3
Spread foundation 7, because the basic 5 no both ends of muscle spread foundation 7 connect with the rigid pile 1 and the flexible pile 2 respectively
Earth, so the rigidity that the cyclopean concrete of the no muscle spread foundation 7 has disperses power to inter-pile soil 6 to surrounding, while by
Dirt and tabia etc. form the no muscle spread foundation 7 and occupy flexible, make described basic 5 can be resetted under appropriate bar shaped.
As specific embodiment, the no muscle spread foundation 7 respectively with the rigid pile 1 and the boundary of flexible pile 2
Expansion joint 8 is set, enable by the expansion joint 8 at the rigid pile 1 and the flexible pile 2 and the no muscle spread foundation 7
Alleviate deformation so as to protect the rigid pile 1 and the flexible pile 2.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (3)
- A kind of 1. dual composite foundation of rigid and flexible pile, it is characterised in that：Including rigid pile (1), flexible pile (2), pile cover (3), cotton-padded mattress Bed course (4) and basis (5)；The rigid pile (1) and the flexible pile (2) arranged for interval in the plane, pile cover (3) shape For step type and it is arranged in the rigid pile (1), the edge of the pile cover (3) is more than institute with the distance of the flexible pile (2) State the half distance between rigid pile (1) and flexible pile (2) and be less than the rigid pile (1) and the distance of flexible pile (2), Rigid pile (1) stake top sets the thick mattress layers (4) of 30mm, and the basis (5) is arranged on above the mattress layer (4).
- A kind of 2. dual composite foundation of rigid and flexible pile according to claim 1, it is characterised in that：Rigid pile (1) stake top To divide into 20cm*20cm without muscle spread foundation (7), no muscle spread foundation (7) both ends respectively with the rigid pile (1) and institute Flexible pile (2) is stated to border on.
- A kind of 3. dual composite foundation of rigid and flexible pile according to claim 2, it is characterised in that：The no muscle spread foundation (7) expansion joint (8) are set with the rigid pile (1) and the flexible pile (2) boundary respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552517.0U CN206706806U (en) | 2017-05-17 | 2017-05-17 | A kind of dual composite foundation of rigid and flexible pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552517.0U CN206706806U (en) | 2017-05-17 | 2017-05-17 | A kind of dual composite foundation of rigid and flexible pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206706806U true CN206706806U (en) | 2017-12-05 |
Family
ID=60464548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720552517.0U Expired - Fee Related CN206706806U (en) | 2017-05-17 | 2017-05-17 | A kind of dual composite foundation of rigid and flexible pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206706806U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN109356589A (en) * | 2018-09-19 | 2019-02-19 | 郑州安源工程技术有限公司 | The design and construction method of supporting construction can be recycled in a kind of ladder-like deep circle vertical shaft assembled of flexible compound |
| CN110965398A (en) * | 2019-11-25 | 2020-04-07 | 中南大学 | Expansive soil foundation structure containing ballastless track roadbed and construction method |
| CN114960305A (en) * | 2022-04-24 | 2022-08-30 | 南昌大学 | High-speed railway subgrade lower expansive soil foundation reinforcing structure and construction method |
-
2017
- 2017-05-17 CN CN201720552517.0U patent/CN206706806U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN109356589A (en) * | 2018-09-19 | 2019-02-19 | 郑州安源工程技术有限公司 | The design and construction method of supporting construction can be recycled in a kind of ladder-like deep circle vertical shaft assembled of flexible compound |
| CN110965398A (en) * | 2019-11-25 | 2020-04-07 | 中南大学 | Expansive soil foundation structure containing ballastless track roadbed and construction method |
| CN114960305A (en) * | 2022-04-24 | 2022-08-30 | 南昌大学 | High-speed railway subgrade lower expansive soil foundation reinforcing structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20210517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |