CN202090334U - Capped two-way-perforated PTC tubular pile composite foundation - Google Patents
Capped two-way-perforated PTC tubular pile composite foundation Download PDFInfo
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- CN202090334U CN202090334U CN2011201679632U CN201120167963U CN202090334U CN 202090334 U CN202090334 U CN 202090334U CN 2011201679632 U CN2011201679632 U CN 2011201679632U CN 201120167963 U CN201120167963 U CN 201120167963U CN 202090334 U CN202090334 U CN 202090334U
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Abstract
A capped two-way-perforated PTC (Prestressed Tubular Concrete) tubular pile composite foundation adopts the structure that a reinforcing cage is placed at a pile opening of a two-way-perforated tubular pile, a pile cap is arranged around the reinforcing cage, and a mattress layer is arranged around the pile cap. The utility model has the technical effect that the two-way-perforated tubular pile is arranged in a soft-soil foundation, so that soil water can enter the tubular pile along with the generation, development and dissipation of the pressure of excess pore water either in construction period or in construction intermission. Provided the pile encounters mucky soil, soil water can enter the tubular pile through two-way perforated holes. Provided the water in the holes is relatively more in construction period, the water can be removed in a pumping manner. With the drop of the water level in the holes, soil water can seep into the tubular pile again, so that the soil water content can be further lowered, the soil strength is improved, and the foundation bearing capacity is reinforced.
Description
Technical field
The utility model relates to a kind of pipe pile composite foundation, and it is two-way to the perforated pipe pile composite foundation to relate in particular to a kind of band cap PTC type.
Background technology
At present during the existing pipes pile driving construction, particularly the hammer piling mode produces soil compaction effect and excess pore water pressure, very easily causes adjacent stake skew, even broken pile.PTC type pile tube is used for the deep soft soil foundation treatment project, and main purpose is control foundation settlement and settlement after construction, improves bearing capacity of foundation soil, and pile tube self bearing capacity is not a subject matter.The main cause that foundation settlement produces is because the discharge of soil body mesopore water under the outer load effect.For deep soft soil foundation engineerings such as speedway, high-speed railway, road in airport, control its sedimentation, mainly be meant the control settlement amount after construction, be that its settlement amount after construction is controlled in the critical field.If produce more settling amount as far as possible in construction periods such as embankment, dykes and dams, with the discharge as much as possible of native mesopore water, reduce the water content of soil, then its settlement amount after construction will be reduced and will be controlled in the critical field of settlement amount after construction, reach processing intent.Because the native rigidity of stake differs greatly, causes a top stress too concentrated easily, thrusts distortion in the generation, forms native doming effect.
Summary of the invention
The purpose of this utility model is to provide a kind of band cap PTC type two-way to the perforated pipe pile composite foundation, adopt the silent piling method perforation pile tube to be sunk to deep soft soil foundation with two-way, in position, stake top pile cover is set simultaneously, with homogenizing stake top stress, thrust distortion on reducing, certain thickness rubble mattress layer (can add steel mesh reinforcement) is set on pile cover again, and it is two-way to the perforated pipe pile composite foundation to form a kind of band cap PTC type.
The utility model is achieved like this, it comprises two-way to perforation pile tube, reinforcing cage, pile cover, mattress layer, it is characterized in that two-way stake mouth to the perforation pile tube is placed with reinforcing cage, and the reinforcing cage periphery is provided with pile cover, and the cap periphery is provided with mattress layer.
Technique effect of the present utility model is: no matter be provided with two-way in the soft foundation is in the construction period to the perforation pile tube, and still in the construction intermittent phase, along with generation, development and the dissipation of excess pore water pressure, water in soil can enter in the pile tube.If stake runs into the mucky soil environment week, also can be by to two-way perforation being entered in the pile tube.If water is many in the construction period hole, then can take the mode of drawing water that it is got rid of.Along with water level in the hole reduces, water in soil can infiltrate in the pile tube again, makes the water content of soil be able to further reduction, and the intensity of soil improves, and bearing capacity of foundation soil strengthens.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the drawings, 1, two-way to perforation pile tube 2, reinforcing cage 3, pile cover 4, mattress layer 5, pile tube 6, Y to bore a hole 7, X is to perforation.
The specific embodiment
As shown in Figure 1, the utility model is achieved like this, two-way stake mouth to perforation pile tube 1 is placed with reinforcing cage 2, and reinforcing cage 2 peripheries are provided with pile cover 3, and pile cover 3 peripheries are provided with mattress layer 4.The two-way of this utility model only needs to adopt special pile tube punching block to produce on request in factory to the perforation pile tube, and method is with existing pile tube production technology, and site operation adopts silent piling method pile sinking, and other operations are with existing tube pile construction technology.
Construction technology:
Ground flattens → surveys joint stake in the middle joint stake of the middle joint stake of the lower joint stake → stake straightening of fixed pile → pile press machine leveling in place → test stake → hang, the centering → joint stake of avaling → hang → connect → heavy → hang on joint stake → connect joint stake → heavy upper joint stake → pile follower → record → pull out pile follower bar → end → clear up pushes up a position → nail and does pile cover template → placement pile cover steel reinforcement cage → cast pile cover concrete → laying broken stone cushion layer or cushion lime → band cap PTC type two-way paired perforation hole tubular pile composite foundation.
Described two-way to the perforation pile tube comprise pile tube 5, Y to bore a hole 6, X is to boring a hole 7, have on pile tube 5 walls some groups of Y to bore a hole 6 and X to boring a hole 7, same group of Y to bore a hole 6 and X to boring a hole 7 at grade.
Claims (1)
1. a band cap PTC type is two-way to the perforated pipe pile composite foundation, it comprises two-way to perforation pile tube, reinforcing cage, pile cover, mattress layer, it is characterized in that two-way stake mouth to the perforation pile tube is placed with reinforcing cage, the reinforcing cage periphery is provided with pile cover, and the pile cover periphery is provided with mattress layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201679632U CN202090334U (en) | 2011-05-24 | 2011-05-24 | Capped two-way-perforated PTC tubular pile composite foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201679632U CN202090334U (en) | 2011-05-24 | 2011-05-24 | Capped two-way-perforated PTC tubular pile composite foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090334U true CN202090334U (en) | 2011-12-28 |
Family
ID=45365411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201679632U Expired - Fee Related CN202090334U (en) | 2011-05-24 | 2011-05-24 | Capped two-way-perforated PTC tubular pile composite foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018850A (en) * | 2017-12-22 | 2018-05-11 | 深圳职业技术学院 | A kind of reinforced soft soil ground device |
-
2011
- 2011-05-24 CN CN2011201679632U patent/CN202090334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018850A (en) * | 2017-12-22 | 2018-05-11 | 深圳职业技术学院 | A kind of reinforced soft soil ground device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20120524 |