CN205934947U - Dark foundation pit dewatering tubular well structure - Google Patents
Dark foundation pit dewatering tubular well structure Download PDFInfo
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- CN205934947U CN205934947U CN201620811489.5U CN201620811489U CN205934947U CN 205934947 U CN205934947 U CN 205934947U CN 201620811489 U CN201620811489 U CN 201620811489U CN 205934947 U CN205934947 U CN 205934947U
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- filter
- pipe
- chimney filter
- material layer
- foundation pit
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Abstract
The utility model belongs to the technical field of civil engineering and specifically relates to a dark foundation pit dewatering tubular well structure, mainly used constructs dark foundation pit dewatering engineering. This structure includes: clay layer, cement pipe, chimney filter, filter material layer, specifically the structure is as follows: upper portion is cement pipe and clay layer, and clay layer sets up in the cement pipe outside, end wall pipe in the formation, the lower part is chimney filter and filter material layer, and the filter material layer sets up in the chimney filter outside, forms end wall pipe down. The chimney filter is equipped with steel reinforcement cage and bamboo, and the steel reinforcement cage is formed by connecting for the vertical muscle along the circumference equipartition with along the horizontal muscle of upper and lower equipartition, and adjacent indulging sets up bamboo between the muscle, chimney filter outsourcing filter screen and to twine the silk fixed, formation braided tubular structure. Adopt the utility model discloses can improve construction operating conditions greatly, equipment is simple, the improvement work efficiency for construction progress, engineering cost be with lower, frost boiling when stopping the drainage, emits mud, szyrt phenomenon, prevents that sining from appearing in side slope unstability or near ground, thereby reach the purpose of protection nearby buildings safety.
Description
Technical field
This utility model belongs to technical field of civil engineering, specially a kind of deep foundation pit precipitation pipe well structure, is mainly used in
Deep Foundation Pit Dewatering engineering.
Background technology
Pipe well points, as one kind of drainage by well points method, are before excavation of foundation pit, along the surrounding or of excavation pit
Well point filter pipe or the pipe well that some is deeper than hole bottom is buried in side, both sides, is connected with house steward or is directly connected with pumping equipment
Therefrom draw water, make lowering of the underground water level to foundation ditch bottom 0.5～below 1.0m, existing well-points dewatering method presence：Complex process,
The shortcomings of efficiency is low, engineering cost is higher, drawdown is not enough.
Content of the invention
The purpose of this utility model is to provide the depth that a kind of simple eye well displacement is big, can enter Mobile state precipitation from shallow to deep
Base pit dewatering pipe well structure, for AQUIFER HYDRAULIC in the range of 1.0～200m/d, subsoil water is than more rich
Area.
The technical solution of the utility model is：A kind of deep foundation pit precipitation pipe well structure is it is characterised in that this structure includes：
Argillic horizon, pipe of concrete, chimney filter, filter material layer, concrete structure is as follows：
Top is pipe of concrete and argillic horizon, and argillic horizon is arranged at outside pipe of concrete, forms upper end wall pipe；Bottom is filter
Pipe and filter material layer, filter material layer is arranged at outside chimney filter, forms lower end wall pipe.
Chimney filter is provided with steel reinforcement cage and bamboo stem, steel reinforcement cage be the vertical muscle being uniformly distributed along the circumference and vertically uniform horizontal bar connect and
Become, bamboo stem is set between adjacent vertical muscle, chimney filter outsourcing filter screen simultaneously twines silk and fixes, and forms the tubular structure of establishment.
Advantage of the present utility model and beneficial effect are：
1st, constructing operation condition can be substantially improved using this utility model, equipment is simple, improve work efficiency, accelerate to construct into
Degree, engineering cost is relatively low, prevents frost boiling during draining, emits mud, quicksand phenomenon, prevents slope instability or neighbouring ground from occurring collapsing
Fall into, thus reaching the purpose of protection nearby buildings safety.
2nd, the applicable various hydrogeologic conditions of this utility model, reduce water level depth up to more than 5m.
Brief description
Fig. 1 is this utility model deep foundation pit precipitation pipe well structure schematic diagram.
In figure：1 argillic horizon；2 pipe of concretes；3 steel reinforcement cages；4 filter screens；5 horizontal bars；6 bamboo stem；7 filter material layers；8 vertical muscle.
Specific embodiment
Below, in conjunction with the drawings and specific embodiments, utility model is made and further describing in detail.
As shown in figure 1, this utility model deep foundation pit precipitation pipe well structure, main inclusion：Argillic horizon 1, pipe of concrete 2, steel
Muscle cage 3, filter screen 4, horizontal bar 5, bamboo stem 6, filter material layer 7, vertical muscle 8 etc., concrete structure is as follows：
Top is pipe of concrete 2 and argillic horizon 1, and argillic horizon 1 is arranged at outside pipe of concrete 2, forms upper end wall pipe；Bottom
For chimney filter and filter material layer 7, filter material layer 7 is arranged at outside chimney filter, forms lower end wall pipe.Chimney filter is provided with steel reinforcement cage 3 and bamboo stem 6, steel
Muscle cage is the vertical muscle 8 being uniformly distributed along the circumference and vertically uniform horizontal bar is formed by connecting, and arranges bamboo stem 6, chimney filter between adjacent vertical muscle 8
Outsourcing filter screen simultaneously twines silk and fixes, and forms the tubular structure of establishment.
The deficiency existing for existing well-points dewatering method, the work of this utility model deep foundation pit precipitation well technical pattern is former
Reason is as follows：
1st, dewatering well diameter 650mm, using impact drilled as holes.
2nd, dewatering well upper end wall pipe adopts pipe of concrete, its external diameter 470mm.Its quality should meet following requirements：The borehole wall must
Must be qualified products, flexibility is not more than 3mm/m.Outer diameter tolerance is not more than ± 5mm, and wall thickness deviation is not more than ± 2mm, and inwall should
Smooth, pipe shaft flawless, defect and internal injury, reinforcing bar must not expose, 1 meter of upper end wall pipe range（Or 8 meters）.
3rd, chimney filter adds bamboo stem using internal diameter for 400mm steel reinforcement cage and works out, and steel reinforcement cage is uniformly distributed along the circumference for diameter 12mm
8 vertical muscle（8φ12）With diameter 12mm, spacing 250mm（φ12@250）Horizontal bar（Reinforcement）Combination, steel reinforcement cage outsourcing
Two-layer 40 mesh filter screen simultaneously twines silk and fixes.
4th, after chimney filter is made and gone into the well, fill out outward 6～8mm filtrate（Gravel, rubble or cobble）, filtrate requirement matter is hard, profile rolling
Circle or half round as a ball.
5th, backfill clay outside pipe of concrete.
Claims (2)
1. a kind of deep foundation pit precipitation pipe well structure is it is characterised in that this structure includes：Argillic horizon（1）, pipe of concrete（2）, filter
Pipe, filter material layer（7）, concrete structure is as follows：
Top is pipe of concrete（2）And argillic horizon（1）, argillic horizon（1）It is arranged at pipe of concrete（2）Outside, forms upper end wall pipe；
Bottom is chimney filter and filter material layer（7）, filter material layer（7）It is arranged at outside chimney filter, form lower end wall pipe.
2. according to the deep foundation pit precipitation pipe well structure described in claim 1 it is characterised in that chimney filter is provided with steel reinforcement cage（3）And bamboo
Bar（6）, steel reinforcement cage（3）For the vertical muscle being uniformly distributed along the circumference（8）Vertically uniform horizontal bar（5）It is formed by connecting, adjacent vertical muscle（8）
Between arrange bamboo stem（6）, chimney filter outsourcing filter screen（4）And twine silk and fix, form the tubular structure of establishment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620811489.5U CN205934947U (en) | 2016-07-29 | 2016-07-29 | Dark foundation pit dewatering tubular well structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620811489.5U CN205934947U (en) | 2016-07-29 | 2016-07-29 | Dark foundation pit dewatering tubular well structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205934947U true CN205934947U (en) | 2017-02-08 |
Family
ID=57923754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620811489.5U Active CN205934947U (en) | 2016-07-29 | 2016-07-29 | Dark foundation pit dewatering tubular well structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205934947U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165181A (en) * | 2017-07-11 | 2017-09-15 | 中交隧道工程局有限公司 | It is a kind of that there is the subway foundation pit dewatering well for monitoring depressurization |
| CN107460885A (en) * | 2017-09-22 | 2017-12-12 | 中国路桥工程有限责任公司 | A kind of relief well of deep foundation pit and its construction method |
-
2016
- 2016-07-29 CN CN201620811489.5U patent/CN205934947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165181A (en) * | 2017-07-11 | 2017-09-15 | 中交隧道工程局有限公司 | It is a kind of that there is the subway foundation pit dewatering well for monitoring depressurization |
| CN107460885A (en) * | 2017-09-22 | 2017-12-12 | 中国路桥工程有限责任公司 | A kind of relief well of deep foundation pit and its construction method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |