CN204311442U - A kind of starlike to bodkin-cylindrical pipe pile - Google Patents
A kind of starlike to bodkin-cylindrical pipe pile Download PDFInfo
- Publication number
- CN204311442U CN204311442U CN201420647836.6U CN201420647836U CN204311442U CN 204311442 U CN204311442 U CN 204311442U CN 201420647836 U CN201420647836 U CN 201420647836U CN 204311442 U CN204311442 U CN 204311442U
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- CN
- China
- Prior art keywords
- pile
- starlike
- cylindrical pipe
- pipe pile
- soil
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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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Abstract
A kind of starlike to bodkin-cylindrical pipe pile, it comprises cone-cylindrical pipe pile, starlike to perforation, it is characterized in that: cone-cylindrical pipe pile pile lining has that several are starlike to perforation from top to bottom.Technique effect of the present utility model is: in static pressure pile-sinking process, if water is many in pile body hole, then water extraction way can be taked to be got rid of; Along with water level in borehole reduces, in soil, Free water can be infiltrated in cone-cylindrical pipe pile again, and make the water content of soil be able to further reduction, soil classifiction is improved, and bearing capacity of foundation soil strengthens, and pile foundation resistance to overturning is better; Starlikely effectively can reduce adjacent stake soil compaction effect, cleaning ambient to during the construction of bodkin-cylindrical pipe pile, starlike also have energy-conservation advantage to bodkin-cylindrical pipe pile.
Description
Technical field
The utility model relates to a kind of cone-cylindrical pipe pile, particularly relates to a kind of starlike to bodkin-cylindrical pipe pile.
Background technology
At present existing be starlikely used in deep soft soil foundation process engineering to bore conical pile tube, main purpose controls foundation settlement deformation, accelerate the dissipation of excess pore water pressure, improve bearing capacity of foundation soil, starlike is not subject matter to self bearing capacity of bore conical pile tube.Relative to starlike to perforation cylindrical pipe pile, PTC type starlike to bore conical tube pile construction time, particularly adopt hammer piling mode, easily produce soil compaction effect, very easily cause adjacent stake to offset, even broken pile.In order to weaken the starlike unfavorable factor to bore conical stake, pile body bottom being designed to cylindricality pile cutoff, both having remained the advantageous feature of tapered pile, reduce again the unfavorable factor of its effect of driving pile, improve pile foundation resistance to overturning.Too high effect of driving pile, easily impacts pile foundation surrounding soil stability, damages neighbouring underground structure structure.In order to avoid these unfavorable factors as far as possible, because strict control produces too high effect of driving pile, with the safety of the stability and surrounding structure that improve pile foundation entirety.Therefore, pile body bottom is designed to cylindricality pile cutoff, has both remained the advantageous feature of upper taper stake, reduce again the unfavorable factor of its effect of driving pile and generation excess pore water pressure, improve pile foundation resistance to overturning.
Summary of the invention
The purpose of this utility model there are provided a kind of starlike to bodkin-cylindrical pipe pile, this cone-cylindrical pipe pile is arranged to some are starlike to perforation, form cone-cylindrical pipe pile with holes, make full use of the polywater effect of cone-cylindrical pipe pile cavity and play the side friction of taper pile cutoff surrounding soil.
The utility model is achieved like this, a kind of starlike to bodkin-cylindrical pipe pile, it comprises cone-cylindrical pipe pile, starlike to perforation, it is characterized in that the top of cone-cylindrical pipe pile is taper pile cutoff, bottom is cylindricality pile cutoff, and pile lining has from top to bottom, and several are starlike to perforation.
Preferably, described starlike to 1 meter, interval between perforation, the diameter in hole is according to engine request arrangement.
Preferably, described tapered pile segment length requires according to actual design and determines.
Technique effect of the present utility model is: in the construction period, due to starlike to bodkin-cylindrical pipe pile own characteristic, tapering point upper, post ends under, be conducive to the side friction playing the taper pile cutoff side soil body, the starlike soil compaction effect to bore conical pile tube also can suitably reduce simultaneously; On the other hand because pile driving process can produce Super-void Water Pressure, in soil, Free water can enter in conical pipe pile; In the construction intermittent phase, under acting by external hydrostatic pressure, along with the dissipation of Super-void Water Pressure, in soil, Free water also can enter in conical pipe stake holes.If run into mucky soil in construction, mud flows in conical pipe pile by starlike to perforation; If water is many in hole, then water extraction way can be taked to be got rid of; Along with water level in borehole reduces, in soil, Free water can be infiltrated in conical pipe pile again, and make the water content of soil be able to further reduction, soil classifiction is improved, and bearing capacity of foundation soil strengthens; Effectively can reduce adjacent stake soil compaction effect, cleaning ambient during conical pipe pile construction with holes, starlike also have energy-conservation advantage to bodkin-cylindrical pipe pile.
Accompanying drawing explanation
Fig. 1, Fig. 2 are structural representation of the present utility model, and wherein Fig. 1 is tapered pile segment structure schematic diagram, and Fig. 2 is cylindricality pile cutoff structural representation.
Fig. 3 is the sectional drawing of the utility model A-A, B-B, C-C.
Fig. 4 is the sectional drawing of the utility model D-D, E-E, F-F.
In the drawings, 1, cone-cylindrical pipe pile, 2, starlike to perforation, 3, taper pile cutoff, 4, cylindricality pile cutoff.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the starlike pile lining to bodkin-cylindrical pipe pile 1 of PTC type has that several are starlike to perforation 2 from top to bottom, and starlike to 1 meter, interval between perforation, the diameter in hole according to engine request arrangement, and adopts static pressure pile-sinking mode to construct.Pile body top is taper pile cutoff 3, and its length requires according to actual design and determines, and bottom is cylindricality pile cutoff 4.In construction, in soil, Free water is by starlike cavity perforation being flowed into conical pipe pile of several on cone-column tube pile lining, then the mud in cavity and water is extracted out by pump, reduces conical pipe pile surrounding aqueous amount, strengthen bearing capacity of foundation soil.
Claims (2)
1. starlike to bodkin-cylindrical pipe pile, it comprises cone-cylindrical pipe pile, starlike to perforation, it is characterized in that: the top of cone-cylindrical pipe pile is taper pile cutoff, and bottom is cylindricality pile cutoff, and pile lining has from top to bottom, and several are starlike to perforation.
2. according to claim 1 starlike to bodkin-cylindrical pipe pile, it is characterized in that: described starlike to 1 meter, interval between perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647836.6U CN204311442U (en) | 2014-11-04 | 2014-11-04 | A kind of starlike to bodkin-cylindrical pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647836.6U CN204311442U (en) | 2014-11-04 | 2014-11-04 | A kind of starlike to bodkin-cylindrical pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204311442U true CN204311442U (en) | 2015-05-06 |
Family
ID=53133766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420647836.6U Expired - Fee Related CN204311442U (en) | 2014-11-04 | 2014-11-04 | A kind of starlike to bodkin-cylindrical pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204311442U (en) |
-
2014
- 2014-11-04 CN CN201420647836.6U patent/CN204311442U/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 |
Granted publication date: 20150506 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |