CN203741818U - Drainage type prefabricated tubular pile structure with supporting disc - Google Patents
Drainage type prefabricated tubular pile structure with supporting disc Download PDFInfo
- Publication number
- CN203741818U CN203741818U CN201420084101.7U CN201420084101U CN203741818U CN 203741818 U CN203741818 U CN 203741818U CN 201420084101 U CN201420084101 U CN 201420084101U CN 203741818 U CN203741818 U CN 203741818U
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- China
- Prior art keywords
- pile
- prefabricated tubular
- holes
- tubular pile
- tip
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- Expired - Lifetime
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- 239000004576 sand Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000004746 geotextile Substances 0.000 claims description 9
- 238000012946 outsourcing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000007596 consolidation process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 abstract 2
- 239000002689 soil Substances 0.000 description 15
- 238000010276 construction Methods 0.000 description 8
- 239000011148 porous material Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005370 electroosmosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a drainage type prefabricated tubular pile structure with a supporting disc. The drainage type prefabricated tubular pile structure with the supporting disc is characterized in that a closing pile tip is arranged at the end of a prefabricated tubular pile, a pile body and the closing pile tip are respectively provided with drain holes, the rear-mounted supporting disc with holes is arranged on the portion, provided with the drain holes, of the pile body, and the rear-mounted supporting disc with the holes is provided with a transverse drain pipe which is covered with filter geotechnical cloth. Filter geotechnical cloth is arranged in the closing pile tip, a cover board with a hole is arranged on the top of the prefabricated tubular pile, a plastic drain board is placed in the pile body, and the pile body is filled with medium-coarse sand. A drainage consolidation method and a rigid pile composite foundation method are adopted in a combined mode, and the water drainage effect is improved due to the fact that the pile tip and the pile body are provided with the drain holes; the rear-mounted supporting disc with the holes is arranged, so that the bearing performance of the prefabricated tubular pile is greatly improved, and good technical and economic benefits are achieved.
Description
Technical field
The utility model relates to a kind of band branch drainage type prefabricated tubular pile structure, belongs to foundation treatment engineering field, is applicable to structure foundation processing, moisture foundation drainage construction.
Background technology
Due to prefabricated tubular pile steady quality, bearing capacity of single pile is high, and design Application Range is wide, is widely used in foundation treatment engineering.In the time that composite foundation inter-pile soil owes fixed, between prefabricated tubular pile stake, there is excess pore water pressure, if do not discharge these pore waters, can produce large area sedimentation.Therefore, we need to adopt some discharging consolidation measures, to reduce the pore water in the soil body, improve soil bearing capacity.
Consolidation is mainly used in Soft Ground, its principle be ground under load action, by arranging vertical drainage facility, the pore water in the soil body is slowly discharged, void ratio reduces, and impels ground generation consolidation deformation, the intensity of foundation soil is promoted.Consolidation is mainly used in solving the problem of foundation settlement.In order to accelerate soil solidifying, often take increases draining water way in the natural soil body, shortens drainage distance, and the methods such as vertical drainage well are set, and accelerates ground soil solidifying, impels sedimentation to fulfil ahead of schedule.Foundation soil body is fixed complete after, strengthened the shear strength of foundation soil, improved the supporting capacity of foundation soil, reduce the differential settlement of the later stage soil body.
At present in engineering, applying more discharging consolidation foundation treatment mode has: preloading, vacuum method, precipitating, pre-pressing method and electric drainage method etc.Preloading easy construction, drainage effect is good; But its construction need at foundation surface landfill load, for example, be piled the stone that bankets, and whole engineering construction amount is large, length consuming time.Vacuum method drainage effect is good; But work progress need use diaphragm seal sand cushion, and sealing performance is had higher requirements.Precipitating, pre-pressing method is extracted underground water out by water pump and is reduced water level, reduces pore water pressure, impels foundation soil to accelerate fixed; But precipitating, pre-pressing method is applicable to saturated silt, fine sand ground, affected by geological conditions larger.Electric drainage method cardinal principle is by electroosmosis, discharges gradually the water in foundation soil, because construction method is not mature enough, therefore in Practical Project, applies less.
In sum, although existing discharging consolidation method has been obtained good construction effect under suitable engineering specifications, need improvements but still exist.Given this, according to current actual demands of engineering and technical condition, need a kind of drainage effect of invention badly good, easy construction, reduces working procedure, the discharge structure that ambient influnence is little.
Summary of the invention
The purpose of this utility model is to improve the weak point that existing discharging consolidation measure exists, and provides a kind of band branch drainage performance good, easy construction, and working procedure is simple, the drainage type prefabricated tubular pile structure that technical economic benefit is high.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of band branch drainage type prefabricated tubular pile structure, it is characterized in that, end at prefabricated tubular pile arranges pile tip with closed opening, pile body and pile tip with closed opening all arrange drain hole, the position that drain hole is set at pile body arranges rear-mounted branch with holes, and described branch rear-mounted with holes is provided with transverse drain outsourcing anti-filter geotextiles; Anti-filter geotextiles is set in pile tip with closed opening; The top of prefabricated tubular pile arranges cover having holes, places plastic draining board in pile body, and pours into medium coarse sand formation slurry;
Described prefabricated tubular pile pile body drain hole, the transverse drain of rear-mounted branch with holes, the preformed hole of pile tip with closed opening all evenly arrange along horizontal plane, and quantity is 4;
Rear-mounted branch with holes is the circular ring structure being assembled by two semi-circular members, is wrapped in outward after prefabricated tubular pile pile body and is fixed on prefabricated tubular pile by fastening devices;
Pile tip with closed opening is cross taper, is by being welded after the circular steel plate that the is socketed in an end trapezoidal steel plate splicing identical with four.
The utlity model has following characteristics and beneficial effect:
(1) pile body is provided with drain hole, connects with the transverse drain of rear-mounted branch with holes, has improved the globality of pile body and rear-mounted branch with holes.
(2) pile body precalculated position is provided with rear-mounted branch with holes, has increased the contact area between stake and the soil body, has improved the load-carrying properties of prefabricated tubular pile.
(3) in pile tip with closed opening, be provided with anti-filter geotextiles, rear-mounted branch outsourcing anti-filter geotextiles with holes, guarantees that drain hole is not stopped up by mud, ensures drainage effect.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model drainage type prefabricated tubular pile structure;
Fig. 2 is the profile of the utility model drainage type prefabricated tubular pile structure;
Fig. 3 is the profile of pile tip with closed opening;
Fig. 4 is the profile of rear-mounted branch with holes.
In figure: 1-prefabricated tubular pile, 2-pile tip with closed opening, 3-drain hole, 4-anti-filter geotextiles, 5-rear-mounted branch with holes, 6-transverse drain, 7-fastening devices, 8-plastic draining board, 9-medium coarse sand, 10-cover plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Fig. 1 is the stereogram of the utility model band branch drainage type prefabricated tubular pile structure, and Fig. 2 is the profile of the utility model band branch drainage type prefabricated tubular pile structure, and Fig. 3 is the profile of pile tip with closed opening, and Fig. 4 is the profile of rear-mounted branch with holes.
With reference to the band branch drainage type prefabricated tubular pile structure shown in Fig. 1, mainly formed by prefabricated tubular pile 1, pile tip with closed opening 2, rear-mounted branch 5 with holes and cover plate 10.Prefabricated tubular pile 1 pile body evenly arranges four drain holes 3 that connect pile lining around, and aperture is 50mm ~ 80mm.
Pile tip with closed opening 2 is cross taper, adopts hot rolled steel plate to make, and strength grade is not less than Q345.By being welded after the circular steel plate that the is socketed in an end trapezoidal steel plate splicing identical with four.Circular steel plate and prefabricated tubular pile equal diameter.On circular steel plate, 4 drain holes are evenly set, circular steel plate inner side is provided with anti-filter geotextiles 4.
The circular ring structure that rear-mounted branch with holes 5 is assembled by two semicircle plastic members, is wrapped in prefabricated tubular pile 1 pile body outward and arranges after the position of drain hole fixing by fastening devices 7.Rear-mounted branch with holes 5 is laterally evenly provided with four transverse drains 6, connects with the drain hole 3 of prefabricated tubular pile 1 pile body, and outsourcing anti-filter geotextiles 4.Rear-mounted branch with holes 5 and transverse drain 6 all adopt that PVC is prefabricated to be formed.Fastening devices 7 can adopt three prestress wires, and nominal diameter is 6.2mm, and tensile strength is not less than 23.1kN; Or steel plate hoop, steel plate adopts hot rolled steel plate, and strength grade is not less than Q345.
At the top of prefabricated tubular pile 1, cover plate 10 is set, reserving hole on cover plate 10, aperture is 200mm ~ 300mm, for put into plastic draining board 8 in pile tube, pours into medium coarse sand 9.
Work progress is as follows: pile tip with closed opening 2 is arranged on to pile body bottom, and rear-mounted branch 5 with holes is arranged on pile body and arranges the position of drain hole, and the drain hole of the corresponding pile body of the transverse drain of rear-mounted branch with holes 5; Utilize silent piling equipment that prefabricated tubular pile is set in place, after plastic draining board 8 is connected with positioning section, through the reserving hole on cover plate 10, put into prefabricated tubular pile, then to the interior perfusion medium coarse sand 9 of prefabricated tubular pile 1.Drainage blanket is laid in prefabricated tubular pile cover plate 10 bottoms, and plastic draining board 8 embeds drainage blanket.
Claims (4)
1. a band branch drainage type prefabricated tubular pile structure, it is characterized in that, end at prefabricated tubular pile arranges pile tip with closed opening, pile body and pile tip with closed opening all arrange drain hole, the position that drain hole is set at pile body arranges rear-mounted branch with holes, and described branch rear-mounted with holes is provided with transverse drain outsourcing anti-filter geotextiles; Anti-filter geotextiles is set in pile tip with closed opening; The top of prefabricated tubular pile arranges cover having holes, places plastic draining board, and pour into medium coarse sand in pile body.
2. band branch drainage type prefabricated tubular pile structure according to claim 1, is characterized in that described prefabricated tubular pile pile body drain hole, the transverse drain of rear-mounted branch with holes, the preformed hole of pile tip with closed opening all evenly arrange along horizontal plane, and quantity is 4.
3. band branch drainage type prefabricated tubular pile structure according to claim 1, is characterized in that rear-mounted branch with holes is the circular ring structure being assembled by two semi-circular members, is wrapped in outward after prefabricated tubular pile pile body and is fixed on prefabricated tubular pile by fastening devices.
4. band branch drainage type prefabricated tubular pile structure according to claim 1, is characterized in that pile tip with closed opening is cross taper, is by being welded after the circular steel plate that the is socketed in an end trapezoidal steel plate splicing identical with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084101.7U CN203741818U (en) | 2014-02-27 | 2014-02-27 | Drainage type prefabricated tubular pile structure with supporting disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084101.7U CN203741818U (en) | 2014-02-27 | 2014-02-27 | Drainage type prefabricated tubular pile structure with supporting disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203741818U true CN203741818U (en) | 2014-07-30 |
Family
ID=51341639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084101.7U Expired - Lifetime CN203741818U (en) | 2014-02-27 | 2014-02-27 | Drainage type prefabricated tubular pile structure with supporting disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203741818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648872A (en) * | 2016-02-03 | 2016-06-08 | 济南轨道交通集团有限公司 | Device and construction method for prefabricated seepage column |
| CN106836211A (en) * | 2017-04-06 | 2017-06-13 | 安徽理工大学 | A kind of prefabricated base expanding and base expanding diameter-variable pile and its construction method for soft soil foundation |
| CN113106971A (en) * | 2021-04-26 | 2021-07-13 | 连云港市建筑设计研究院有限责任公司 | Support disc type prestressed concrete pile |
-
2014
- 2014-02-27 CN CN201420084101.7U patent/CN203741818U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648872A (en) * | 2016-02-03 | 2016-06-08 | 济南轨道交通集团有限公司 | Device and construction method for prefabricated seepage column |
| CN106836211A (en) * | 2017-04-06 | 2017-06-13 | 安徽理工大学 | A kind of prefabricated base expanding and base expanding diameter-variable pile and its construction method for soft soil foundation |
| CN113106971A (en) * | 2021-04-26 | 2021-07-13 | 连云港市建筑设计研究院有限责任公司 | Support disc type prestressed concrete pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |