CN203284787U - Composite pipe well precipitation system - Google Patents
Composite pipe well precipitation system Download PDFInfo
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- CN203284787U CN203284787U CN2013203018915U CN201320301891U CN203284787U CN 203284787 U CN203284787 U CN 203284787U CN 2013203018915 U CN2013203018915 U CN 2013203018915U CN 201320301891 U CN201320301891 U CN 201320301891U CN 203284787 U CN203284787 U CN 203284787U
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Abstract
The utility model provides a composite pipe well precipitation system relating to the technical field of civil construction, and aims to solve the technical problem of improving the pipe well precipitation effect. The composite pipe well precipitation system comprises a precipitation pipe well, a vacuum pump and at least one light well point pipe, wherein the precipitation pipe well is embedded in a stratum soil body, the top end of the precipitation pipe well is closed, a section of pipe well filter pipe is connected to the bottom end wellhead of the precipitation pipe well, and a submersible pump and a liquid level gauge are arranged in the precipitation pipe well; the vacuum pump is positioned outside the precipitation pipe well, and an air suction port of the vacuum pump is connected into a well cavity of the precipitation pipe well; a water pumping port of the submersible pump is connected to the outside of the precipitation pipe well; each light well point pipe is respectively embedded in the soil body surrounding the precipitation pipe well, the top end of each light well point pipe is closed, and the bottom end pipe orifice of each light well point pipe is connected with a precipitation filter head; and each light well point pipe is respectively connected to the well cavity of the precipitation pipe well through a connecting pipe and a connecting control valve. The composite pipe well precipitation system provided by the utility model is suitable for reducing the water level or water content in a water bearing layer during excavating of a deep foundation ditch.
Description
Technical field
The utility model relates to the civil engineering technology, particularly relates to a kind of technology of combined type tube well dewatering system.
Background technology
, for construction environment dry and safety is provided to deep-foundation pit engineering, adopt the method for precipitation reduce the groundwater table of excavation soil layer and may cause that the groundwater table in the aquifer that base plate of foundation pit pressure-bearing Shuitu is gushed is very necessary.
Application of light well point precipitation is little because of the well point spacing, vacuum is strong, its dewatering effect is good, pore-forming in foundation ditch and installation are very convenient simultaneously, its price is also relatively cheap, but the effective depth of Application of light well point precipitation generally is not more than 6m, so Application of light well point precipitation is widely used in the more shallow foundation ditch of excavation, generally adopts the tube well dewatering mode to reduce water level or water content in aquifer in deep pit digging at present.
But near being positioned at the bottom of aquifer at the bottom of the deep pit digging face; or in the excavation of foundation pit scope, aquifer is thinner; or while having local lens in the excavation of foundation pit scope; tube well dewatering is difficult to bring into play fully its effect; easily form aquitard at part, and when deep pit digging, if the laying spacing between pipe well is less; can affect soil excavation, also can strengthen the protection difficulty of pipe well.
In addition, in tube well dewatering, mostly the pipe well chimney filter is for stratum design, and in the excavation of foundation pit scope, the ubiquity chimney filter is favourable to the draining in early stage, but is difficult for continuing to keep vacuum after excavation of foundation pit, can affect the dewatering effect during excavation of foundation pit.
The utility model content
For the defect that exists in above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of aquitard that can solve in the tube well dewatering process, improves the combined type tube well dewatering system of tube well dewatering effect.
In order to solve the problems of the technologies described above, a kind of combined type tube well dewatering system provided by the utility model, comprise precipitation pipe well, vacuum pump;
Described precipitation pipe well vertically is embedded in the ground layer soil body, the top closure of precipitation pipe well, and the bottom well head of precipitation pipe well is connected to one section pipe well chimney filter, is provided with submersible pump, content gauge in the precipitation pipe well;
It is outside that described vacuum pump is positioned at the precipitation pipe well, and the air entry of vacuum pump is through the well chamber of pipe fitting access precipitation pipe well;
It is outside that the pump mouth of a river of described submersible pump is connected to the precipitation pipe well through pipe fitting;
It is characterized in that: also comprise at least one light well point pipe;
Each light well point pipe is embedded in respectively in the soil body of precipitation pipe well periphery, the top closure of each light well point pipe, and the bottom mouth of pipe of each light well point pipe is connected to a precipitation filter;
Each light well point pipe each through tube connector and connect the well chamber that control valve is received respectively the precipitation pipe well.
Further, fill filtrate between the outer wall of described precipitation pipe well and the surrounding soil body, form filter material layer, the end face of described filter material layer is lower than 1～2 meter, ground, and the bottom surface of filter material layer is lower than the pipe well chimney filter.
Further, the outer wall of described precipitation pipe well is coated with one deck water guide net at least.
the combined type tube well dewatering system that the utility model provides, take tube well dewatering as main, Application of light well point precipitation is auxiliary, in deep pit digging, the soil excavation degree of depth is generally less than 5m, and the effective depth of light well point pipe generally is not more than 6m, before every layer of soil excavation, can supplement and arrange that the light well point pipe carries out precipitation for privileged sites, but light well point pipe flexible arrangement is on the different parts at different cutting depths place, effectively combine the advantage of tube well dewatering and Application of light well point precipitation, can solve the aquitard problem in the tube well dewatering process, improve the tube well dewatering effect, and the spacing between the precipitation pipe well can be amplified, be convenient to soil excavation, precipitation pipe well and light well point pipe share a vacuum pump and a submersible pump, the convenient operation operation, do not need, for the light well point pipe, header tank is set separately.In addition, the setting of pipe well chimney filter and filter material layer, can arrive the purpose that reduces water content in different soil, guaranteed again the vacuum continuation of precipitation pipe well in the deep pit digging different phase.
Description of drawings
Fig. 1 is the structural representation of the combined type tube well dewatering system of the utility model embodiment.
The specific embodiment
Below in conjunction with description of drawings, embodiment of the present utility model is described in further detail, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof, all should list protection domain of the present utility model in.
As shown in Figure 1, a kind of combined type tube well dewatering system that the utility model embodiment provides, comprise precipitation pipe well 1, vacuum pump (not shown);
Described precipitation pipe well 1 vertically is embedded in the ground layer soil body, the top closure of precipitation pipe well 1, and the bottom well head of precipitation pipe well 1 is connected to one section pipe well chimney filter 2, is provided with submersible pump 3, content gauge 4 in precipitation pipe well 1;
Described vacuum pump is positioned at precipitation pipe well 1 outside, and the air entry of vacuum pump is through the well chamber of pipe fitting access precipitation pipe well 1;
It is outside that the pump mouth of a river of described submersible pump 3 is connected to the precipitation pipe well through pipe fitting;
It is characterized in that: also comprise at least one light well point pipe 6;
Each light well point pipe 6 is embedded in respectively in the soil body of precipitation pipe well 1 periphery, the top closure of each light well point pipe 6, and the bottom mouth of pipe of each light well point pipe 6 is connected to a precipitation filter 10;
Each light well point pipe 6 each through tube connector 8 and connect the well chamber that control valve 7 is received respectively precipitation pipe well 1.
In the utility model embodiment, fill filtrate between the outer wall of described precipitation pipe well 1 and the surrounding soil body, form filter material layer 9, the end face of described filter material layer 9 is lower than 1～2 meter, ground, the bottom surface of filter material layer 9 is lower than pipe well chimney filter 2, the outer wall of precipitation pipe well 1 is coated with one deck water guide net at least, and arranging of filter material layer and water guide net can guarantee that the precipitation pipe well all has the water guide function to the aquifer of different depth.
In the utility model embodiment, the aboveground air gauge 5 that is provided with for detection of downcomer borehole pressure situation of described downcomer.
The implementation method of the utility model embodiment is as follows:
When deep pit digging, first the precipitation pipe well vertically is embedded in the ground layer soil body, and at the bottom of the precipitation pipe well mouth of pipe, connect the pipe well chimney filter, the pipe well chimney filter should be lower than the excavation face of deep foundation ditch, to guarantee the lasting maintenance of vacuum in the precipitation pipe well, aquitard existence in the layer soil body of base area, bury the light well point pipe of right quantity underground in the soil body of precipitation pipe well periphery again, and utilize tube connector and connect control valve and each light well point pipe is received the well chamber of precipitation pipe well;
The underground water of each light well point pipe periphery and gas flow into each light well point pipe by the precipitation filter of each light well point pipe bottom, water and gas in each light well point pipe flow into the precipitation pipe well by tube connector, connect control valve by each, can control the break-make of each light well point pipe and precipitation pipe well;
The underground water of precipitation pipe well periphery and gas flow into the precipitation pipe well by the pipe well chimney filter of downcomer shaft bottom end, and the underground water in the precipitation pipe well is by the gutter of submersible pump pumping to precipitation pipe well outside, and the gas in the precipitation pipe well is extracted the precipitation pipe well out by vacuum pump;
, by the aboveground air gauge of downcomer, can detect downcomer borehole pressure situation;
By the content gauge in the precipitation pipe well, can detect and control liquid level in the precipitation pipe well, also can guarantee just can open after submersible pump is all the time in the water that submerges, guarantee the application life of submersible pump.
Claims (3)
1. a combined type tube well dewatering system, comprise precipitation pipe well, vacuum pump;
Described precipitation pipe well vertically is embedded in the ground layer soil body, the top closure of precipitation pipe well, and the bottom well head of precipitation pipe well is connected to one section pipe well chimney filter, is provided with submersible pump, content gauge in the precipitation pipe well;
It is outside that described vacuum pump is positioned at the precipitation pipe well, and the air entry of vacuum pump is through the well chamber of pipe fitting access precipitation pipe well;
It is outside that the pump mouth of a river of described submersible pump is connected to the precipitation pipe well through pipe fitting;
It is characterized in that: also comprise at least one light well point pipe;
Each light well point pipe is embedded in respectively in the soil body of precipitation pipe well periphery, the top closure of each light well point pipe, and the bottom mouth of pipe of each light well point pipe is connected to a precipitation filter;
Each light well point pipe each through tube connector and connect the well chamber that control valve is received respectively the precipitation pipe well.
2. combined type tube well dewatering system according to claim 1, it is characterized in that: fill filtrate between the outer wall of described precipitation pipe well and the surrounding soil body, form filter material layer, the end face of described filter material layer is lower than 1～2 meter, ground, and the bottom surface of filter material layer is lower than the pipe well chimney filter.
3. combined type tube well dewatering system according to claim 1 and 2, it is characterized in that: the outer wall of described precipitation pipe well is coated with one deck water guide net at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203018915U CN203284787U (en) | 2013-05-29 | 2013-05-29 | Composite pipe well precipitation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203018915U CN203284787U (en) | 2013-05-29 | 2013-05-29 | Composite pipe well precipitation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203284787U true CN203284787U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203018915U Expired - Lifetime CN203284787U (en) | 2013-05-29 | 2013-05-29 | Composite pipe well precipitation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203284787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276740A (en) * | 2013-05-29 | 2013-09-04 | 上海广联建设发展有限公司 | Combined type tube well dewatering system |
| CN104762982A (en) * | 2015-03-06 | 2015-07-08 | 中建三局第一建设工程有限责任公司 | Construction method of watery red sandstone geological underground water level control |
-
2013
- 2013-05-29 CN CN2013203018915U patent/CN203284787U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276740A (en) * | 2013-05-29 | 2013-09-04 | 上海广联建设发展有限公司 | Combined type tube well dewatering system |
| CN104762982A (en) * | 2015-03-06 | 2015-07-08 | 中建三局第一建设工程有限责任公司 | Construction method of watery red sandstone geological underground water level control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200444 Shanghai city Baoshan District Jinqiu road 2399 Lane 198, building 1 B zone Patentee after: SHANGHAI GUANGLIAN ENVIRONMENTAL & GEOTECHNICAL ENGINEERING Co.,Ltd. Address before: 200444 Shanghai city Baoshan District Jinqiu road 2399 Lane 198, building 1 B zone Patentee before: Shanghai Guanglian Construction Development Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |