CN209620067U - A kind of foundation-pit deep-well well-points dewatering system - Google Patents
A kind of foundation-pit deep-well well-points dewatering system Download PDFInfo
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- CN209620067U CN209620067U CN201920064287.2U CN201920064287U CN209620067U CN 209620067 U CN209620067 U CN 209620067U CN 201920064287 U CN201920064287 U CN 201920064287U CN 209620067 U CN209620067 U CN 209620067U
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- well
- pipe
- downcomer
- water
- foundation
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a kind of foundation-pit deep-well well-points dewatering systems, it is characterized in that the surrounding in each foundation pit arranges that more mouthfuls of pipe wells carry out precipitation, the hole diameter of the pipe well is to set within it twice of downcomer bore, the downcomer is divided into three sections, upper part first segment is common tube, two sections of the common tube lower part are chimney filter, the strainer of 60 mesh of setting in the chimney filter, the mixing gravel material of 1~4mm partial size is filled out between the borehole wall and downcomer of pipe well, drinking-water pipe is set in the downcomer, and the drinking-water pipe connects water pump.The utility model, using into combination precipitation, improves precipitation efficiency, downcomer lower part is arranged two section chimney filters, improves filter effect, can effectively remove impurity in dell water, play certain clean-up effect by the way that more mouthfuls of pipe wells are arranged around foundation pit.
Description
Technical field
The utility model relates to a kind of foundation-pit deep-well well-points dewatering systems.
Background technique
Base pit dewatering is the important step for guaranteeing mass of foundation, and there are many common Method on Dewatering of Foundation Pit.Common method
There is bright ditch to add sump precipitation, Application of light well point precipitation, ejector well point precipitation, electro-osmosis well point precipitation etc..
Bright ditch adds sump precipitation to be a kind of artificial row's drop method.It mainly excludes underground latent water, construction water and day rainfall
Water.In the relatively abundant area of underground water, if only independent precipitation in this way, due to more, the anchor and spray net branch of excavation slope infiltration
Difficulty of construction is protected to increase.Therefore, this precipitation method is not applied individually to any generally in the foundation pit stope support of high water level area.
Application of light well point precipitation is little suitable for foundation pit area, reduces the not deep occasion of water level.This method reduces water level depth
Generally between 3~6 meters, if it is desired to precipitation depth is greater than 6 meters, it theoretically can be using multistage well-point system, but require foundation pit
Enough spaces are needed outside surrounding, in order to slope or grooving.
Ejector well point system can generate the vacuum degree of 250 millimeter of mercuries in well point bottom, and reduction water level depth is big, and one
As in 8~20 meters of ranges.Its applicable soil layer infiltration coefficient is 0.1~50 meter generally daily as light well point.But it is taken out
Water system and injection well casing are very complicated, and operation troubles rate is higher, and energy loss is very big, and required cost is than other well-point methods
It is high.
Electro-osmosis well point is suitable for the fine grained soil of infiltration coefficient very little, such as clay, lam, mud and silt clay
Deng.The infiltration coefficient of these soil is less than daily 0.1 meter, it is needed and light well point or ejector well point connected applications, reduction water
Bit depth is decided by light well point or ejector well point.
Utility model content
The utility model aims at the problems existing in the prior art, and provides a kind of foundation-pit deep-well well-points dewatering system, structure letters
Single, Precipitation Process is safe and efficient.
The technical solution adopted in the utility model is: a kind of foundation-pit deep-well well-points dewatering system, it is characterised in that each
The surrounding of foundation pit arranges that more mouthfuls of pipe wells carry out precipitation, and the hole diameter of the pipe well is to set within it twice of downcomer bore, institute
The downcomer stated is divided into three sections, and upper part first segment is common tube, and two sections of the common tube lower part are chimney filter, the chimney filter
The strainer of 60 mesh of interior setting, fills out the mixing gravel material of 1~4mm partial size between the borehole wall and downcomer of pipe well, in the downcomer
Drinking-water pipe is set, and the drinking-water pipe connects water pump.
Water amount detection device to detect water content is set in the pipe well, further includes being electrically connected with water amount detection device
Controller, controller connect water pump, controller receive water amount detection device detection water content, and according to water content control water
The operating status of pump.
The pipe well quantity is 16 mouthfuls, well depth 12000mm.
The hole diameter 600mm of the pipe well, the caliber of the downcomer are 300mm.
Clay closure is filled out by ramming between the pipe well top and downcomer.
The utility model, using into combination precipitation, improves precipitation efficiency by the way that more mouthfuls of pipe wells are arranged around foundation pit,
Two section chimney filters are arranged in downcomer lower part, improve filter effect, can effectively remove impurity in dell water, play certain purification effect
Fruit.Water amount detection device is also configured in pipe well, can monitor the water level in pipe well in real time with hop controller, is quantitatively taken out by water pump
Water saves energy consumption.
Detailed description of the invention
Fig. 1 is the plane arrangement structure schematic diagram of the utility model.
Fig. 2 is the pipe well sectional view of the utility model.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail:
As Figure 1-Figure 2, a kind of foundation-pit deep-well well-points dewatering system arranges more mouthfuls of pipe wells 2 in the surrounding of each foundation pit 1
Precipitation is carried out, the hole diameter of the pipe well is to set within it twice of downcomer bore, and downcomer is divided into three sections, upper part first
Section is common tube 6, and two sections of the common tube lower part are chimney filter 3, the strainer of 60 mesh of setting, the borehole wall of pipe well in the chimney filter
The mixing gravel material 5 of 1~4mm partial size is filled out between downcomer, drinking-water pipe 7 is set in the downcomer, and the drinking-water pipe connects
Water pump 9.
Water amount detection device 4 to detect water content is set in pipe well, further includes being electrically connected with water amount detection device
Controller, controller connect water pump, and controller receives the water content of water amount detection device detection, and controls water pump according to water content
Operating status.Pipe well quantity is 16 mouthfuls, well depth 12000mm.The hole diameter 600mm of pipe well, the caliber of the downcomer are
300mm.The closure of clay 8 is filled out by ramming between pipe well top and downcomer.
The sequence of construction of the utility model be well point measurement and positioning → dig a well mouth → drilling machine it is in place → drilling → backfill shaft bottom
Water pump is divided into gravel filter layer → well-flushing → well casing of sand bedding course → hang downcomer → between backfill well casing and hole wall, installation is taken out
Water management circuit → examination draws water → and dewatering well normal work → precipitation finishes and pulls out well casing → shut-in well.
Its advantages are displacement is big, precipitation depth is big, precipitation range is big etc..It is very big suitable for infiltration coefficients such as sandy gravel stratums
And the occasion that pervious bed thickness is big.
Listed above is only specific embodiment of the utility model, and the utility model is not limited to above embodiment,
It is acceptable that there are many deformations.Those skilled in the art directly can export or associate from content disclosed by the utility model
All deformations, be considered as the protection scope of the utility model.
Claims (5)
1. a kind of foundation-pit deep-well well-points dewatering system, it is characterised in that arrange that more mouthfuls of pipe wells are dropped in the surrounding of each foundation pit
Water, the hole diameter of the pipe well are to set within it twice of downcomer bore, and the downcomer is divided into three sections, upper part first
Section is common tube, and two sections of the common tube lower part are chimney filter, the strainer of 60 mesh of setting in the chimney filter, the borehole wall of pipe well with
The mixing gravel material of 1~4mm partial size is filled out between downcomer, drinking-water pipe is set in the downcomer, and the drinking-water pipe connects water
Pump.
2. a kind of foundation-pit deep-well well-points dewatering system according to claim 1, it is characterised in that setting is used in the pipe well
It further include the controller being electrically connected with water amount detection device to detect the water amount detection device of water content, controller connects water pump,
Controller receives the water content of water amount detection device detection, and the operating status of water pump is controlled according to water content.
3. a kind of foundation-pit deep-well well-points dewatering system according to claim 2, it is characterised in that the pipe well quantity is
16 mouthfuls, well depth 12000mm.
4. a kind of foundation-pit deep-well well-points dewatering system according to claim 3, it is characterised in that the hole diameter of the pipe well
600mm, the caliber of the downcomer are 300mm.
5. a kind of foundation-pit deep-well well-points dewatering system according to claim 4, it is characterised in that the pipe well top and drop
Clay closure is filled out by ramming between water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064287.2U CN209620067U (en) | 2019-01-15 | 2019-01-15 | A kind of foundation-pit deep-well well-points dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064287.2U CN209620067U (en) | 2019-01-15 | 2019-01-15 | A kind of foundation-pit deep-well well-points dewatering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209620067U true CN209620067U (en) | 2019-11-12 |
Family
ID=68449943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920064287.2U Expired - Fee Related CN209620067U (en) | 2019-01-15 | 2019-01-15 | A kind of foundation-pit deep-well well-points dewatering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209620067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254960A (en) * | 2020-02-17 | 2020-06-09 | 盐城笃诚建设有限公司 | Device for treating precipitation in foundation pit |
-
2019
- 2019-01-15 CN CN201920064287.2U patent/CN209620067U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254960A (en) * | 2020-02-17 | 2020-06-09 | 盐城笃诚建设有限公司 | Device for treating precipitation in foundation pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 Termination date: 20210115 |