CN205314117U - Foundation structure that draw water is carried out with centrifugal pump - Google Patents
Foundation structure that draw water is carried out with centrifugal pump Download PDFInfo
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- CN205314117U CN205314117U CN201521137471.3U CN201521137471U CN205314117U CN 205314117 U CN205314117 U CN 205314117U CN 201521137471 U CN201521137471 U CN 201521137471U CN 205314117 U CN205314117 U CN 205314117U
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- water pump
- pump
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Abstract
The utility model provides a foundation structure that draw water is carried out with centrifugal pump, hole dado device that includes bored concrete pile hole, centrifugal water pump, water delivery hose, liquid level relay and can seep water, the bored concrete pile is downthehole to insert the hole dado device that can seep water along the pore wall, centrifugal water pump installs at the bored concrete pile downtheholely, and centrifugal water pump is connected with liquid level relay and opens in order to control it, the water delivery hose is connected with centrifugal water pump. This structure can improve work efficiency, energy -concerving and environment -protective, reduce project cost once only more than the reducing underground water level 20m.
Description
Technical field
This utility model belongs to a kind of level of ground water field of engineering technology, carries out the foundation structure drawn water particularly to a kind of centrifugal pump.
Background technology
At present, to the engineering needing lowering of watertable, unit in charge of construction mainly adopts following three kinds of precipitation methods: 1. open drain method (being applicable to row's phreatic water); 2. Application of light well point precipitation method (suitable in the subsoil water in the draining depth scope less than 3～5m scope or 6～9m, and the infiltration coefficient of soil is the soil of 0.1～50m/d); 3. ejector well point method; 4. drainage by electroosmosis method etc. Conventional is Application of light well point precipitation method.
In order to insert long 7～8m in the soil in water-bearing layer, diameter is generally the well-point pipe of 51～63mm, before excavation pit, earth need to be washed open with water under high pressure and well-point pipe is submerged in aquifer by its deadweight, water pressure is generally 400～700kPa, punching hole diameter is generally about 30cm, tamps as sand filter blanket with clean coarse sand between hole wall and pipe. Bod tamping is used instead with anti-gas-leak, it is ensured that there is higher vacuum well point being about in the degree of depth of about 1m from ground. Therefore, this method cost height, engineering time length, effort, and this foundation structure not easily breaks down.
Summary of the invention
The purpose of this utility model is in that to provide a kind of centrifugal pump to carry out the foundation structure that draws water, this structure can disposable more than lowering of watertable 20m, work efficiency, energy-conserving and environment-protective, reduction construction costs can be improved.
As above conceiving, the technical solution of the utility model is: a kind of centrifugal pump carries out the foundation structure drawn water, it is characterised in that: include priming concrete pile hole, centrifugal water pump, delivery hose, liquid level relay and permeable holes protecting wall device; Permeable holes protecting wall device is inserted along hole wall in described priming concrete pile hole; Described centrifugal water pump is arranged in priming concrete pile hole, and centrifugal water pump is connected to control it and opens with liquid level relay; Described delivery hose is connected with centrifugal water pump.
Above-mentioned permeable holes protecting wall device adopts steel reinforcement cage outsourcing infiltration geotextiles.
Above-mentioned permeable holes protecting wall device adopts polyvinyl chloride pipe, outsourcing infiltration geotextiles that the tube wall of this water pipe punches.
This utility model has such advantages as and good effect:
1, this utility model sets priming concrete pile hole in the position needed, carry out retaining wall with mud and permeable holes protecting wall device, can save backfill cleaning between tube wall and pipe coarse sand, save at the bod layer being about 1m from ground, save well casing that seamless steel pipe makes and save chimney filter and all to chimney filter relevant are processed and ways.
2, this utility model centrifugal water pump, delivery hose, liquid level relay controlling water level draw water to substitute vaccum pump unit, it is possible to save energy consumption, expense and artificial, and this foundation structure not easily breaks down.
3, this utility model can be widely applied to depth basis, do not affected by foundation ditch size, and needs the construction of structures of more than lowering of watertable 20m, as basement in high rise building, car dumper shed, down-stream process the engineerings such as pond.
Accompanying drawing explanation
Fig. 1 is top view during this utility model construction;
Fig. 2 is front view during this utility model construction.
In figure, 1. is priming concrete pile hole; 2. it is permeable guard aperture wall device; 3 is mud layer; 4. it is delivery hose; 5 is centrifugal water pump; 6 is liquid level relay; 7. it is foundation ditch.
Detailed description of the invention
Below in conjunction with accompanying drawing, the foundation structure of lowering of watertable of the present utility model is illustrated.
As shown in Figure 1, 2: a kind of centrifugal pump carries out the foundation structure drawn water, including priming concrete pile hole 1, centrifugal water pump 5, delivery hose 4, liquid level relay 6 and permeable holes protecting wall device 2. Permeable holes protecting wall device is inserted along hole wall in described priming concrete pile hole; Described centrifugal water pump is arranged in priming concrete pile hole, and centrifugal water pump is connected to control it and opens with liquid level relay; Described delivery hose is connected with centrifugal water pump.
Above-mentioned permeable holes protecting wall device adopts steel reinforcement cage outsourcing infiltration geotextiles.
Above-mentioned permeable holes protecting wall device adopts polyvinyl chloride pipe, outsourcing infiltration geotextiles that the tube wall of this water pipe punches.
Work progress of the present utility model is: set priming concrete pile hole 1 in foundation ditch 7 surrounding needing lowering of watertable by designing requirement; Set priming concrete pile hole 1 in foundation ditch when foundation ditch does not excavate, and surround square shape by design drawing along foundation ditch surrounding, the degree of depth that the priming concrete pile hole in foundation ditch can be arranged on demand and set.
When pore-forming just with mud layer 3 retaining wall, permeable holes protecting wall device 2 is inserted along bored concrete pile hole wall; Put into priming concrete pile hole after centrifugal water pump 5 and delivery hose 4 being connected, and centrifugal water pump and liquid level relay are connected.
Opening centrifugal water pump, subsoil water (has just been initially mud), and position begins to decline, it is possible to carry out foundation ditch shoveling work. Along with the increase of the excavation of foundation pit degree of depth, work of drawing water continues, and level of ground water continues to decline, and the priming concrete pile hole in foundation ditch must be protected, and does not stop because shoveling reason is destroyed and draws water, until it reaches cutting depth needed for foundation ditch.
Need to continuing to draw water, when observing level of ground water distance foundation ditch bottom surface N=1～1.5m, in foundation ditch, water pump can stop pumping; When level of ground water rises to from foundation ditch bottom surface n=1m, centrifugal water pump need to be started and draw water, until the work in foundation ditch all terminates. When being Reinforced Concrete Materials such as base plate of foundation pit, needing strength of reinforced concrete to reach predetermined strength rear can stop pumping, and by the material plug-hole of designing requirement.
Claims (3)
1. the foundation structure carrying out drawing water with centrifugal pump, it is characterised in that: include priming concrete pile hole, centrifugal water pump, delivery hose, liquid level relay and permeable holes protecting wall device; Permeable holes protecting wall device is inserted along hole wall in described priming concrete pile hole; Described centrifugal water pump is arranged in priming concrete pile hole, and centrifugal water pump is connected to control it and opens with liquid level relay; Described delivery hose is connected with centrifugal water pump.
2. a kind of centrifugal pump according to claim 1 carries out the foundation structure that draws water, it is characterised in that: above-mentioned permeable holes protecting wall device adopts steel reinforcement cage outsourcing infiltration geotextiles.
3. a kind of centrifugal pump according to claim 1 carries out the foundation structure that draws water, it is characterised in that: above-mentioned permeable holes protecting wall device adopts polyvinyl chloride pipe, outsourcing infiltration geotextiles that the tube wall of this water pipe punches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137471.3U CN205314117U (en) | 2015-12-29 | 2015-12-29 | Foundation structure that draw water is carried out with centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137471.3U CN205314117U (en) | 2015-12-29 | 2015-12-29 | Foundation structure that draw water is carried out with centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205314117U true CN205314117U (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521137471.3U Active CN205314117U (en) | 2015-12-29 | 2015-12-29 | Foundation structure that draw water is carried out with centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN205314117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464120A (en) * | 2015-12-29 | 2016-04-06 | 天津市海岸带工程有限公司 | Foundation structure capable of pumping water by using centrifugal pump |
| CN107489160A (en) * | 2017-08-10 | 2017-12-19 | 魏玉建 | Well-points dewatering automatic servo compensation system |
-
2015
- 2015-12-29 CN CN201521137471.3U patent/CN205314117U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464120A (en) * | 2015-12-29 | 2016-04-06 | 天津市海岸带工程有限公司 | Foundation structure capable of pumping water by using centrifugal pump |
| CN107489160A (en) * | 2017-08-10 | 2017-12-19 | 魏玉建 | Well-points dewatering automatic servo compensation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |