CN205591212U - Multi -functional precast tubular pile - Google Patents
Multi -functional precast tubular pile Download PDFInfo
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- CN205591212U CN205591212U CN201620219559.8U CN201620219559U CN205591212U CN 205591212 U CN205591212 U CN 205591212U CN 201620219559 U CN201620219559 U CN 201620219559U CN 205591212 U CN205591212 U CN 205591212U
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- concrete pipe
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- 239000004567 concrete Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000001556 precipitation Methods 0.000 abstract description 13
- 239000007787 solid Substances 0.000 abstract 2
- 239000012466 permeate Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 19
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model belongs to the technical field of pile foundation engineering, foundation ditch engineering and foundation treatment and specifically relates to multi -functional precast tubular pile, its characterized in that: precast tubular pile is including permeating water concrete pipe pile and add the solid, it establishes to add the solid cover permeate water concrete pipe pile's outside. The utility model has the advantages that: when the construction pile foundation for the dissipation of pressing of super hole, reduced pile sinking squeezing effect, utilize built -in pumping device to draw water, with higher speed the drainage of stake zhou tuti solidify, increase soil body intensity, accomplish the foundation treatment in the pile foundation construction, can effectively reduce foundation treatment part expense, speed and the effect handled of ground is better simultaneously, when the foundation ditch excavates, carry out foundation pit dewatering, reduction precipitation construction work volume as the precipitation well, in the foundation ditch engineering, also can be alone as the precipitation well, can extensively be used for soft soil layer's foundation treatment and need the foundation ditch engineering of precipitation, the construction is simple, and the time limit for a project is short, the cost is low, the facilitate promotion.
Description
Technical field
This utility model relates to pile foundation engineering, base pit engineering and field of foundation treatment, especially multifunctional precast pile tube.
Background technology
Prefabricated tubular pile has a wide range of applications in pile foundation engineering and foundation stabilization.But during heavy-pile driving construction, owing to the volume of pile tube self occupies the original space of the soil body, make the soil body in stake week arrange to surrounding.When soil around pile is saturated soft soil, after the soil body is squeezed, volume will not shrink or amount of contraction is the least, and now soil compaction effect is very notable, thus results in the biggest negative effect, is mainly manifested in the following aspects:
(1) during piling, excess pore water pressure raises, and for saturated clay, dissipation of excess pore-water pressure is relatively slow, under the soil-squeezing action of continuous piling, can cause damage of soil body, causes pile peripheral earth protuberance and the displacement in occurred level direction；
(2) during large area pile sinking, due to pile peripheral earth by densification, squeeze, the soil body produces the displacement of vertical and horizontal directions, and the neighbouring stake being pressed into can be caused to be extruded, cause an end " unsettled ", will also result in deflected file or pile body warpage, the quality accident such as fracture；
(3) soil compaction effect during large area pile sinking is obvious, and the buildings or structures closing on periphery produce impact, must arrange isolating trenches if desired.
In conventional foundation reinforcement method, such as vacuum method or preloading etc., owing to upper load or the energy affect degree of depth are limited, soil body discharging consolidation speed is relatively slow, and the basement process time cycle is the longest, according to soil layer situation, it is generally required to 2-3 month, even more than half a year.Basement process carries out pile foundation construction after completing again, and the integral construction cycle is greatly increased；The most existing method for processing foundation is affected by the factor such as construction quality and construction equipment, and Foundation Treatment Effect is the most undesirable, and soil solidifying degree reaches and do not reaches design requirement with bearing capacity, and normal use for follow-up buildings or structures brings certain risk.
When the area that level of ground water is higher carries out excavation of foundation pit, generally require and first carry out soil body precipitation.For digging the most shallower foundation ditch, typically use Application of light well point precipitation, and digging deeper foundation ditch or cheating in the foundation ditch that the end is artesian aquifer, generally use dewatering well and carry out precipitation, dewatering construction workload is relatively big, and precipitation complete after well point or pipe well all throw aside, cause the waste of resource.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art, it is provided that multifunctional precast pile tube, uses precast concrete to carry out prefabricated tubular pile and pours, makes prefabricated tubular pile realize the effect of precipitation, decompression and foundation stabilization simultaneously.
This utility model purpose realizes being completed by techniques below scheme:
A kind of multifunctional precast pile tube, it is characterised in that: described prefabricated tubular pile includes that permeable concrete pipe piles and reinforcing body, described reinforcing body are set in the outside of described permeable concrete pipe piles.
Some permeable holes are offered on described reinforcing body.
Described reinforcing body can be steel thimble.
Pile foundation is combined by multifunctional precast pile tube with basement process, base pit dewatering.In pile driving process, subsoil water can penetrate into inside pile tube, accelerates super pore pressure dissipation, reduces soil compaction effect, improve construction quality, may utilize the water plug arranged in pile tube to draw water simultaneously, accelerate pile peripheral earth discharging consolidation, increase soil strength, reduce settlement after construction, make pile foundation combine with basement process, base pit dewatering can be assisted again simultaneously, play the effect of dewatering well.Utilizing works stake also serves as basement process, its processing speed and the more conventional technique of effect are good, can use as dewatering well again, basement process is completed while pile foundation construction, compared to pile foundation construction after traditional first basement process, duration is greatly improved, decreases the expense of basement process and base pit dewatering, better economy.
The utility model has the advantages that: when constructing pile foundation, accelerate the dissipation of super pore pressure, decrease effect of driving pile, built-in immersible pump is utilized to draw water, accelerate pile peripheral earth discharging consolidation, increase soil strength, while pile foundation construction, complete basement process, can effectively reduce basement process part expense, speed and the effect of basement process are preferable simultaneously；When excavation of foundation pit, carry out base pit dewatering as dewatering well, reduce dewatering construction workload；In base pit engineering, it is possible to separately as dewatering well；Can be widely used for the basement process to soft layer and need the base pit engineering of precipitation, construction is simple, and the duration is short, cost is low, it is simple to promote.
Accompanying drawing explanation
Fig. 1 is cross-section structure of the present utility model；
Fig. 2 is sectional structure chart of the present utility model；
Fig. 3 is the structural representation of steel thimble in this utility model；
Fig. 4 is arrangement schematic diagram of the present utility model.
Detailed description of the invention
This utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, in order to the understanding of technical staff of the same trade:
As Figure 1-4, in figure, labelling 1-8 is expressed as: permeable concrete pipe piles 1, steel thimble 2, immersible pump 3, outlet pipe 4, permeable hole 5, building enclosure 6, multifunctional precast pile tube 7, basement 8.
Embodiment: as shown in Figure 1, multifunctional precast pile tube in the present embodiment includes permeable concrete pipe piles 1 and steel thimble 2, wherein steel thimble 2 is set in the outside of permeable concrete pipe piles 1, permeable concrete pipe piles 1 can make subsoil water pass through its outer surface to enter inside its stake holes, and steel thimble 2 is in order to improve pile strength.
As in figure 2 it is shown, in order to be drawn into the subsoil water within permeable concrete pipe piles 1 stake holes, the water plug being made up of immersible pump 3 and outlet pipe 4 can be arranged in its stake holes.Immersible pump 3 is arranged on bottom the stake holes of permeable concrete pipe piles 1, outlet pipe 4 is connected in the stake holes of permeable concrete pipe piles 1, subsoil water is pumped to ground with immersible pump 3, so, pile peripheral earth pore pressure dissipation can be accelerated, accelerate soil solidifying speed, increase soil strength, base pit dewatering can be assisted simultaneously.
As it is shown on figure 3, need according to draining, the tube surfaces at steel thimble 2 can reserve some permeable holes 5, makes subsoil water can enter into the inside of permeable concrete pipe piles 1 successively through permeable hole 5.The permeable hole 5 arrangement mode on steel thimble 2 can need to be designed according to draining.
Multifunctional precast pile tube 7 in the present embodiment is when arranging, as shown in Figure 4, the multifunctional precast pile tube 7 being made up of permeable concrete pipe piles 1 and steel thimble 2 is squeezed into below ground and its bottom is positioned at below the basement 8 of required excavation, i.e. at the end, hole, so, multifunctional precast pile tube 7 is made can to play the effect of consolidated subsoil.Meanwhile, the water plug being made up of immersible pump 3 and drinking-water pipe 4 is set inside the stake holes of permeable concrete pipe piles 1, makes multifunctional precast pile tube 7 can play the effect of precipitation.In order to protect basement 8, it is provided around building enclosure 6 at basement 8.Now, multifunctional precast pile tube 7, as engineering pile, has the effect of soil mass consolidation and base pit dewatering concurrently simultaneously.
In actual use, multifunctional precast pile tube 7 also can be implemented as the dewatering well of base pit dewatering effect and uses.Now, the situation needing base area to survey report and supporting condition separately as the multifunctional precast pile tube 7 of dewatering well effect uses, and it arranges quantity and stake is long also should survey report and the concrete condition of supporting condition with being adapted to.When multifunctional precast pile tube 7 is used only as precipitation effect, steel thimble 2 can only be coated with in pervious bed region, to reduce cost.
The present embodiment is in the specific implementation: steel thimble 2 can pour integral with its pile body as the adventitia of permeable concrete pipe piles 1, bottom steel plate at permeable concrete pipe piles 1 seals simultaneously, it is ensured that the bonding strength between steel thimble 2 and permeable concrete pipe piles 1 and sealing.
Pile tube model, length and the supporting course of the multifunctional precast pile tube 7 being made up of permeable concrete pipe piles 1 and steel thimble 2 must determine according to upper load situation, construction of prefabricated piles can use static pressure method or hammering method, pile sinking and pile extension technology can refer to related specifications and standard performs, piling construction should be conducted batch-wise, and interval is jumped and beaten.
The diameter of steel thimble 2 selects according to the diameter of permeable concrete pipe piles 1, and the parameter such as the concrete material of steel thimble 2 and wall thickness can require select accordingly according to pile strength design.
Multifunctional precast pile tube 7 is according to design reinforcement or precipitation requirement, can be used alone, it is possible to time with conventional pile tube combination, when being applied in combination, one section of multifunctional precast pile tube 7 can be connected, it is possible between the two conventional pile tubes of joint, connect one section of multifunctional precast pile tube 7 in conventional pile tube bottom.
Although design and the embodiment of this utility model purpose is elaborated by above example referring to the drawings, but those of ordinary skill in the art will be consequently realised that, under the precondition limiting scope without departing from claim, still this utility model can be made various modifications and variations, as: the selection of water plug, the construction technology etc. of multifunctional precast pile tube 7, therefore repeat the most one by one at this.
Claims (3)
1. a multifunctional precast pile tube, it is characterised in that: described prefabricated tubular pile includes that permeable concrete pipe piles and reinforcing body, described reinforcing body are set in the outside of described permeable concrete pipe piles.
A kind of multifunctional precast pile tube the most according to claim 1, it is characterised in that: offer some permeable holes on described reinforcing body.
A kind of multifunctional precast pile tube the most according to claim 1 and 2, it is characterised in that: described reinforcing body is steel thimble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620219559.8U CN205591212U (en) | 2016-03-22 | 2016-03-22 | Multi -functional precast tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620219559.8U CN205591212U (en) | 2016-03-22 | 2016-03-22 | Multi -functional precast tubular pile |
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| Publication Number | Publication Date |
|---|---|
| CN205591212U true CN205591212U (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620219559.8U Active CN205591212U (en) | 2016-03-22 | 2016-03-22 | Multi -functional precast tubular pile |
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| CN (1) | CN205591212U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411909A (en) * | 2018-04-19 | 2018-08-17 | 北京泰斯特工程检测有限公司 | A kind of high intensity can drain prefabricating composite pile |
| CN109137888A (en) * | 2018-08-08 | 2019-01-04 | 中国二十冶集团有限公司 | The dewatering construction method of prefabricated concrete pipe pile supporting construction |
| CN113338299A (en) * | 2021-06-21 | 2021-09-03 | 中铁十二局集团有限公司 | Pile well composite foundation pit supporting construction method |
-
2016
- 2016-03-22 CN CN201620219559.8U patent/CN205591212U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411909A (en) * | 2018-04-19 | 2018-08-17 | 北京泰斯特工程检测有限公司 | A kind of high intensity can drain prefabricating composite pile |
| CN109137888A (en) * | 2018-08-08 | 2019-01-04 | 中国二十冶集团有限公司 | The dewatering construction method of prefabricated concrete pipe pile supporting construction |
| CN113338299A (en) * | 2021-06-21 | 2021-09-03 | 中铁十二局集团有限公司 | Pile well composite foundation pit supporting construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 200032 18, building 681, Xiao Mu Qiao Road, Xuhui District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Country or region after: China Address before: 200032, 18th Floor, No. 681 Xiaomuqiao Road, Xuhui District, Shanghai Patentee before: SHANGHAI GEOTECHNICAL INVESTIGATIONS & DESIGN INSTITUTE Co.,Ltd. Country or region before: China |