CN203795410U - Soft-soil vacuum preloading foundation structure - Google Patents
Soft-soil vacuum preloading foundation structure Download PDFInfo
- Publication number
- CN203795410U CN203795410U CN201420236582.9U CN201420236582U CN203795410U CN 203795410 U CN203795410 U CN 203795410U CN 201420236582 U CN201420236582 U CN 201420236582U CN 203795410 U CN203795410 U CN 203795410U
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- China
- Prior art keywords
- soft
- soil
- foundation
- soft foundation
- vacuum preloading
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- 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.)
- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a constructional engineering structure, in particular to a soft-soil vacuum preloading foundation structure. The soft-soil vacuum preloading foundation structure is composed of a soft-soil foundation and drain boards inserted in the soft-soil foundation. The drain boards are longitudinally arranged inside the soft-soil foundation. A plurality of sandbag filling blocks are arranged inside the soft-soil foundation in a matrix mode, the sandbag filling blocks and the drain boards are fixed in a spaced mode through steel wires, a sealing curtain is arranged on the periphery of the soft-soil foundation, and a sealing film pressing groove is formed in the upper portion of the sealing curtain. The upper portion of the soft-soil foundation is covered with a water filtering layer which is covered with a sealing film, a filtering pipe is transversely laid in the water filtering layer, and the filtering pipe is connected with a vacuum pump. The soft-soil vacuum preloading foundation structure has the advantages that the design is reasonable, the construction cost is low, the bearing capacity is high, and the foundation is not prone to subsidence.
Description
Technical field
The utility model relates to a kind of building engineering structure, especially relates to a kind of weak soil Soft Ground Improved By Vacuum Preloading structure.
Background technology
Vacuum precompression construction technique has cost low with respect to other foundation treatment mode, place strong adaptability, widely applicable, the plurality of advantages such as environmental protection construction, to alleviate China's Coastal Areas land used in short supply, realize resources integration important role.Vacuum preloading is applicable to non-surface fixed or that owe fixed soft soil foundation and reinforces, be applicable to process the saturated cohesive soil grounds such as mucky soil, mud and dredger fill, general reinforcement depth can reach 10 meters, along with the development of technology and material installation, can process at present the degree of depth and reach more than 20 meters.China coast is area much, and marine sediment in Quaternary Period layer thickness is large, and the particle diameter of soil is thin, and natural moisture content is higher, and porosity is larger, through vacuum preloading, can make its bearing capacity significantly improve.
Summary of the invention
The utility model is mainly that construction cost is higher for the existing complex structure of prior art, bearing capacity a little less than, the technical problem of the easy sinking of ground etc., provides a kind of simple in structure, and construction cost is lower, bearing capacity is stronger, and ground is difficult for the weak soil Soft Ground Improved By Vacuum Preloading structure of sinking.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: weak soil Soft Ground Improved By Vacuum Preloading structure, by soft foundation and the band drain being plugged in soft foundation, formed, band drain divides some to be longitudinally arranged in soft foundation, in soft foundation, be provided with the sand hill fill block that some square formations are arranged, sand hill fill block and band drain by steel wire apart from one another by fixing, soft foundation periphery is provided with sealing curtain, sealing curtain top is provided with sealing press mold ditch, soft foundation top is coated with drainage layer, on drainage layer, be coated with diaphragm seal, in drainage layer, be laterally equipped with chimney filter, chimney filter connects vacuum pump.Sand hill fill block increases the loading force of soft foundation, the material of drainage layer is used medium coarse sand conventionally, its effect is to form horizontal drainage passage at soil body upper surface, when there is the water-permeable and air permeable layers such as silt, sand, stabilization zone periphery is taked sealing curtain, utilizes the diaphragm seal of whole to form seal closure in soil body surface, and the band drain in cover, filter pipe, the connection of drainage layer become a closed system, under the effect of vacuum pump, in the soil body under seal closure, form negative pressure of vacuum.Thus, on the one hand by original Pore Water Pressure Drop in the soil body; On the other hand, under outside the cover atmospheric pressure effect and the cover internal upper part soil body lose saturation water and increased the active force to the bottom soil body after to soil body buoyancy, the effective stress of the bottom soil body is increased, thereby reaches fixed object.
Therefore, the utlity model has the features such as design is more reasonable, and construction cost is lower, and bearing capacity is stronger, the difficult sinking of ground.
Accompanying drawing explanation
Accompanying drawing 1 is overall structure schematic diagram of the present utility model.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: weak soil Soft Ground Improved By Vacuum Preloading structure consists of soft foundation and the band drain being plugged in soft foundation, band drain 7 is longitudinally arranged in soft foundation 1, in soft foundation 1, be provided with the sand hill fill block 8 that square formation is arranged, sand hill fill block 8 with band drain 7 by steel wire apart from one another by fixing, soft foundation 1 periphery is provided with sealing curtain 2, sealing curtain 2 tops are provided with sealing press mold ditch 6, soft foundation 1 top is coated with drainage layer 3, on drainage layer 3, be coated with diaphragm seal 4, the interior chimney filter 5 that is laterally equipped with of drainage layer 3, chimney filter 5 connects vacuum pump (as shown in Figure 1).
Claims (1)
1. a weak soil Soft Ground Improved By Vacuum Preloading structure, by soft foundation and the band drain being plugged in soft foundation, formed, it is characterized in that described band drain (7) divides some and is longitudinally arranged in soft foundation (1), in soft foundation (1), be provided with the sand hill fill block (8) that some square formations are arranged, sand hill fill block (8) and band drain (7) by steel wire apart from one another by fixing, soft foundation (1) periphery is provided with sealing curtain (2), sealing curtain (2) top is provided with sealing press mold ditch (6), soft foundation (1) top is coated with drainage layer (3), on drainage layer (3), be coated with diaphragm seal (4), in drainage layer (3), be laterally equipped with chimney filter (5), chimney filter (5) connects vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236582.9U CN203795410U (en) | 2014-04-25 | 2014-04-25 | Soft-soil vacuum preloading foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236582.9U CN203795410U (en) | 2014-04-25 | 2014-04-25 | Soft-soil vacuum preloading foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795410U true CN203795410U (en) | 2014-08-27 |
Family
ID=51377639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420236582.9U Expired - Fee Related CN203795410U (en) | 2014-04-25 | 2014-04-25 | Soft-soil vacuum preloading foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795410U (en) |
-
2014
- 2014-04-25 CN CN201420236582.9U patent/CN203795410U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20210425 |