CN205046541U - Composite foundation - Google Patents
Composite foundation Download PDFInfo
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- CN205046541U CN205046541U CN201520802673.9U CN201520802673U CN205046541U CN 205046541 U CN205046541 U CN 205046541U CN 201520802673 U CN201520802673 U CN 201520802673U CN 205046541 U CN205046541 U CN 205046541U
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Abstract
The utility model discloses a composite foundation, including set up the foundation stabilization body, location in weak soil natural foundation lay in on the foundation stabilization body top add muscle mattress layer and set up in with the layer of filling on the muscle mattress layer, wherein, the foundation stabilization body is including a plurality of PHC tubular pile and the stake of a plurality of CFG, the range in turn of a plurality of PHC tubular pile and a plurality of CFG stake interval to form array structure, add muscle mattress layer and include from the last first metalling of down arranging in proper order, fine sand layer, a geogrid, second metalling, medium coarse sand layer, the 2nd geogrid, third metalling and concrete layer, and each the top of PHC tubular pile and each the top of CFG stake all wears to establish concrete layer, and plant in in the third metalling, this composite foundation not only can consolidate the ground, still reduces the construction degree of difficulty and engineering cost.
Description
Technical field
The utility model relates to technical field of building construction, specifically provides a kind of composite foundation.
Background technology
In engineering practice, people have invented composite foundation, by basement process, improve the stress performance of natural ground, make it reach designing requirement.Currently used CFG pile composite foundation is the basement process form of the most conventional use, described CFG pile composite foundation structure refers to and arrange several CFG stakes in weak soil natural ground, then on the top of these several CFG stakes, be equipped with mattress layer (commonly using as macadam), last setting on mattress layer again fills layer, well can improve the stress performance of natural ground.
But due in practice of construction process, the Soft Soil Layer distribution of construction area, the equal factor of uneven thickness and water content, traditional, single CFG pile composite foundation processing form then well can not be applicable to the construction environment of more complicated, not only reach the technique effect of expection, also greatly can increase technical difficulty and the engineering cost of construction.
Therefore, how can either realize consolidated subsoil, reduce difficulty of construction and engineering cost again, become the technical problem that those skilled in the art need solution badly.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides a kind of composite foundation, and this composite foundation can not only consolidated subsoil, also reduction difficulty of construction and engineering cost.
The utility model in order to the technical scheme solving its technical problem and adopt is: a kind of composite foundation, comprise the ground stabilization body be arranged in weak soil natural ground, locate the reinforcement mattress layer that is layed on described ground stabilization body top and be arranged at and described reinforcement mattress layer fills layer, wherein, described ground stabilization body comprises several PHC pile tubes and several CFG stakes, the arrangement that several PHC pile tubes described and several CFG stake intervals replace, to form array structure;
Described reinforcement mattress layer comprises the first macadam, fine sand layer, the first geo-grid, the second macadam, medium-sand seam, the second geo-grid, the 3rd macadam and the layer of concrete arranged successively from top to bottom, and the top of PHC pile tube described in each and the top of CFG stake described in each are all fed through described layer of concrete, and be inserted in described 3rd macadam.
As further improvement of the utility model, the top of PHC pile tube described in several and the top of CFG stake described in several flush;
And the bottom of the bottom of PHC pile tube described in several and CFG stake described in several is also respectively equipped with the second fine sand layer respectively.
As further improvement of the utility model, the height of described PHC pile tube is greater than the height of described CFG stake.
As further improvement of the utility model, described in each, CFG stake inside is respectively embedded with reinforcing cage respectively.
As further improvement of the utility model, the thickness of described reinforcement mattress layer is 30 ~ 50cm.
As further improvement of the utility model, the particle diameter of described first macadam medium stone is greater than the particle diameter of described second macadam and the 3rd macadam medium stone.
The beneficial effects of the utility model are: compared to prior art, this composite foundation has the following advantages: 1. described ground stabilization body adopts the form that PHC pile tube and CFG stake combination are arranged, make full use of the characteristic of PHC pile tube and CFG stake self, not only effectively reduce foundation deformation, consolidated subsoil; Also reduce difficulty of construction, save engineering cost, efficient energy-saving.2. described reinforcement mattress layer can divide in fact the flexible cushion layer be made up of the first macadam, fine sand layer, the first geo-grid, the second macadam, medium-sand seam, the second geo-grid and the 3rd macadam and the rigidity mattress layer be made up of layer of concrete, wherein, flexible cushion layer can make composite foundation have the effect of buffering absorbing preferably, ensure that ground stabilization body is indeformable and reduce ground and produce crack, sedimentation etc., strengthen the steadiness of ground entirety; Rigidity mattress layer then can make ground stabilization body become to be integrated, and makes the supporting capacity of ground stabilization body be able to better performance; In addition, the water passage that rigidity mattress layer can also be formed in closing flexible mattress layer, avoids ponding to penetrate in ground stabilization body.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of composite foundation described in the utility model.
By reference to the accompanying drawings, make the following instructions:
1---ground stabilization body 10---PHC pile tube
11---CFG stake 2---reinforcement mattress layer
20---first macadam 21---fine sand layer
22---first geo-grid 23---second macadam
24---medium-sand seam 25---second geo-grid
26---the 3rd macadam 27---layer of concrete
3---fill layer
Detailed description of the invention
Referring to figure, preferred embodiment of the present utility model is described in detail.
A kind of composite foundation described in the utility model, comprise the ground stabilization body 1 be arranged in weak soil natural ground, locate the reinforcement mattress layer 2 that is layed on described ground stabilization body 1 top and be arranged at and described reinforcement mattress layer 2 fills layer 3, wherein, described ground stabilization body comprises several PHC pile tube 10 and several CFG stakes 11, the arrangement that several PHC pile tubes 10 described and several CFG stake 11 intervals replace, to form array structure;
Described reinforcement mattress layer 2 comprises the first macadam 20, fine sand layer 21, first geo-grid 22, second macadam 23, medium-sand seam 24, second geo-grid 25, the 3rd macadam 26 and the layer of concrete 27 arranged successively from top to bottom, and the top of PHC pile tube 10 described in each and the top of CFG stake 11 described in each are all fed through described layer of concrete 27, and be inserted in described 3rd macadam 26.
Preferably, the top of PHC pile tube 10 described in several and the top of CFG stake 11 described in several flush;
And the bottom of PHC pile tube 10 described in several and the bottom of CFG stake 11 described in several are also respectively equipped with the second fine sand layer respectively, using as substrate bearing stratum.
Preferably, the height of described PHC pile tube 10 is greater than the height of described CFG stake 11.
Preferably, described in each, CFG stake 11 inside is respectively embedded with reinforcing cage respectively.
Preferably, the thickness of described reinforcement mattress layer 2 is 30 ~ 50cm.
Preferably, the particle diameter of described first macadam 20 medium stone is greater than the particle diameter of described second macadam 23 and the 3rd macadam 26 medium stone.
Compared to prior art, composite foundation described in the utility model has the following advantages: 1. described ground stabilization body adopts the form that PHC pile tube and CFG stake combination are arranged, make full use of the characteristic of PHC pile tube and CFG stake self, not only effectively reduce foundation deformation, consolidated subsoil; Also reduce difficulty of construction, save engineering cost, efficient energy-saving.2. described reinforcement mattress layer can divide in fact the flexible cushion layer be made up of the first macadam, fine sand layer, the first geo-grid, the second macadam, medium-sand seam, the second geo-grid and the 3rd macadam and the rigidity mattress layer be made up of layer of concrete, wherein, flexible cushion layer can make composite foundation have the effect of buffering absorbing preferably, ensure that ground stabilization body is indeformable and reduce ground and produce crack, sedimentation etc., strengthen the steadiness of ground entirety; Rigidity mattress layer then can make ground stabilization body become to be integrated, and makes the supporting capacity of ground stabilization body be able to better performance; In addition, the water passage that rigidity mattress layer can also be formed in closing flexible mattress layer, avoids ponding to penetrate in ground stabilization body.
Claims (6)
1. a composite foundation, it is characterized in that: comprise the ground stabilization body (1) be arranged in weak soil natural ground, locate the reinforcement mattress layer (2) that is layed on described ground stabilization body (1) top and be arranged at and described reinforcement mattress layer (2) fills layer (3), wherein, described ground stabilization body comprises several PHC pile tubes (10) and several CFG stakes (11), the arrangement that several PHC pile tubes (10) described and several CFG stake (11) intervals replace, to form array structure;
Described reinforcement mattress layer (2) comprises the first macadam (20), fine sand layer (21), the first geo-grid (22), the second macadam (23), medium-sand seam (24), the second geo-grid (25), the 3rd macadam (26) and the layer of concrete (27) arranged successively from top to bottom, and the top of PHC pile tube (10) described in each and the top of CFG stake (11) described in each are all fed through described layer of concrete (27), and be inserted in described 3rd macadam (26).
2. composite foundation according to claim 1, is characterized in that: the top of PHC pile tube (10) described in several and the top of CFG stake (11) described in several flush;
And the bottom of the bottom of PHC pile tube (10) described in several and CFG stake (11) described in several is also respectively equipped with the second fine sand layer respectively.
3. composite foundation according to claim 1 and 2, is characterized in that: the height of described PHC pile tube (10) is greater than the height of described CFG stake (11).
4. composite foundation according to claim 1, is characterized in that: described in each, CFG stake (11) inside is respectively embedded with reinforcing cage respectively.
5. composite foundation according to claim 1, is characterized in that: the thickness of described reinforcement mattress layer (2) is 30 ~ 50cm.
6. composite foundation according to claim 1, is characterized in that: the particle diameter of described first macadam (20) medium stone is greater than the particle diameter of described second macadam (23) and the 3rd macadam (26) medium stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802673.9U CN205046541U (en) | 2015-10-16 | 2015-10-16 | Composite foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802673.9U CN205046541U (en) | 2015-10-16 | 2015-10-16 | Composite foundation |
Publications (1)
| Publication Number | Publication Date |
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| CN205046541U true CN205046541U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520802673.9U Active CN205046541U (en) | 2015-10-16 | 2015-10-16 | Composite foundation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780804A (en) * | 2016-03-26 | 2016-07-20 | 山东华安铁塔有限公司 | Extra-high voltage power transmission iron tower foundation applicable to hilly regions |
| CN107130579A (en) * | 2017-05-17 | 2017-09-05 | 重庆教育建设（集团）有限公司 | Without muscle spread foundation constructing device and the dual composite foundation construction method of hard and soft |
| CN110512590A (en) * | 2019-07-11 | 2019-11-29 | 桂林理工大学 | It is a kind of for preventing the construction method of bridge foundation differential settlement |
| CN111155508A (en) * | 2020-02-20 | 2020-05-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Soft soil karst foundation reinforced structure |
-
2015
- 2015-10-16 CN CN201520802673.9U patent/CN205046541U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780804A (en) * | 2016-03-26 | 2016-07-20 | 山东华安铁塔有限公司 | Extra-high voltage power transmission iron tower foundation applicable to hilly regions |
| CN107130579A (en) * | 2017-05-17 | 2017-09-05 | 重庆教育建设（集团）有限公司 | Without muscle spread foundation constructing device and the dual composite foundation construction method of hard and soft |
| CN110512590A (en) * | 2019-07-11 | 2019-11-29 | 桂林理工大学 | It is a kind of for preventing the construction method of bridge foundation differential settlement |
| CN111155508A (en) * | 2020-02-20 | 2020-05-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Soft soil karst foundation reinforced structure |
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