CN206128099U - Novel precipitation well shut -in well device - Google Patents
Novel precipitation well shut -in well device Download PDFInfo
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- CN206128099U CN206128099U CN201621160987.4U CN201621160987U CN206128099U CN 206128099 U CN206128099 U CN 206128099U CN 201621160987 U CN201621160987 U CN 201621160987U CN 206128099 U CN206128099 U CN 206128099U
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Abstract
The utility model relates to a novel precipitation well shut -in well device, including sealing the well casing board of shunting in a well under and of shunting in a well on, sealing well casing and including steel pipe, steel seal ring, rubber seal ring, the steel pipe overlaps in the outside that falls water well pipe, be equipped with at least one steel seal ring on the steel pipe outer wall, the steel pipe outer wall is located and is equipped with the rubber seal ring below the steel seal ring, on shunt in a well on the board shut -in well board and establish on the upper portion of steel pipe and shunt in a well the board on, and establish to an airtight steel sheet, under shunt in a well the board and establish in the steel pipe, shunt in a well the board down including boxing out steel sheet, drinking -water pipe, the drinking -water pipe is worn to establish by the department of boxing out of the steel sheet of boxing out, is equipped with the valve on the drinking -water pipe. The utility model discloses can step down to groundwater in the shut -in well and dredge, reduce the influence of groundwater to the shut -in well construction, can effectively guarantee construction quality, secondarily, shut -in well device preparation simple with the installation, easily operation, operational safety is high, but wide application precipitation well shut -in well construction in the foundation ditch.
Description
Technical field
This utility model is related to building foundation pit precipitation field, and in particular to a kind of new well-covering device for dewatering well, especially
There is the artesian water stratum base pit dewatering well shut-in well construction field of larger water pressure.
Background technology
With China's expanding economy and the propulsion of Process of Urbanization Construction, especially deep big foundation pit engineering increasingly increases building foundation pit
Many, the cutting depth of many base pit engineerings is often greater than the natural water level of subsoil water, admittedly need to be dropped in foundation pit construction and during use
Water process.When foundation ditch scope is larger, in order to ensure that dewatering effect is often provided with dewatering well inside foundation ditch, in base plate of foundation pit construction
And building loading meets anti-floating and requires in the past precipitation, dewatering well should be kept to penetrate building base plate.When building load is expired
After sufficient anti-floating is required, can stop pumping, now need to shunt in a well the dewatering well in the range of building base plate.
The shut-in well method commonly used in engineering at present includes steel plate shut-in well and flange apparatus shut-in well, and wherein flange shut-in well is to utilize
Bolted flange ring and flange plate complete the closing of dewatering well, and this shut-in well method complex operation, consuming man-hour is relatively long, adopts
With less.Therefore construct frequently with the mode of welding steel shut-in well after filling siccative, but have holding for larger water pressure at some
Pressure water stratum, because subsoil water water yield is big, Well Water Level rise speed is fast, after well stops pumping, water level is returned rapidly in well
Rise and overflow, cause bottom shut-in well steel plate welding to be difficult to construct.
The content of the invention
To overcome the deficiency, the purpose of this utility model is to provide a kind of new well-covering device for dewatering well, knot
Structure is simple, easy construction, the well-sealing device of strong applicability, solves general steel plate shut-in well method in an artesian water stratum shut-in well difficult problem.
This utility model solves the technical scheme that its technical problem adopted：A kind of new well-covering device for dewatering well, bag
Shut-in well sleeve pipe, upper shut-in well plate and lower shut-in well plate are included, the shut-in well sleeve pipe includes steel pipe, steel seal ring, rubber O-ring seal, steel pipe socket
In the outside of downcast well pipe, the outer wall of steel pipe is provided with least one steel seal ring, and outer wall of steel pipe is located at below steel seal ring
Rubber O-ring seal is provided with, plate of shunting in a well on the upper shut-in well plate is located at the top of steel pipe, and upper shut-in well plate is set to a closed steel plate, described
Lower shut-in well plate is located in steel pipe, and lower shut-in well plate includes box out steel plate, drinking-water pipe, and the place of boxing out of steel plate of boxing out wears drinking-water pipe, takes out
Water pipe is provided with valve, and the upper end of the drinking-water pipe and valve be located at and leave a blank between steel plate and upper shut-in well plate.
Further, the lower end of the drinking-water pipe is inserted in downcast well pipe.
Further, the upper shut-in well plate welds together with the inwall of steel pipe,
Further, the steel plate of boxing out welds together with steel pipe inner wall.
Further, it is externally provided with asphalt anticorrosion paint layer in the steel pipe.
This utility model has the advantages that：First, this utility model can enter while shut-in well to subsoil water
Row blood pressure lowering is dredged, and reduces impact of the subsoil water to shut-in well construction, and construction quality can be effectively ensured；Secondly, this utility model institute
The well-sealing device stated makes and installs simple, it is easy to operates, processing safety is high, can be widely applied to precipitation well in foundation pit shut-in well
Construction.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is generalized section of the present utility model.
Fig. 3 is the construction schematic diagram of lower shut-in well plate installation process of the present utility model.
Fig. 4 is the structural representation after construction of the present utility model is finished.
In figure：11 shut-in well sleeve pipes, 1-1 steel pipes, 1-2 steel seal rings, 1-3 rubber O-ring seals, 2 upper gas sealing plates, 3 times water shutoffs
Plate, 3-1 valves, 3-2 drinking-water pipes, 3-3 boxes out steel plate, 4 well casings, 5 graded sand and stones, 6 underplate concretes, 7 water-proof concretes, and 8 take out
Water pump.
Specific embodiment
This utility model is described in further detail presently in connection with accompanying drawing.
A kind of new well-covering device for dewatering well as shown in Figures 1 to 4, including shut-in well sleeve pipe 1, upper shut-in well plate 2 and lower envelope
Well plate 3, the shut-in well sleeve pipe 1 includes steel pipe 1-1, steel seal ring 1-2, rubber O-ring seal 1-3, and steel pipe 1-1 is enclosed within downcast well pipe 4
Outside, the steel pipe 1-1 outer walls are provided with least one steel seal ring 1-2, and steel pipe 1-1 outer walls are located under steel seal ring 1-2
Face is provided with rubber O-ring seal 1-3, and plate 2 of shunting in a well on the upper shut-in well plate 2 is located at the top of steel pipe 1-1, and it is close that upper shut-in well plate 2 is set to one
Steel plate is closed, the lower shut-in well plate 3 is located in steel pipe 1-1, and lower shut-in well plate 3 includes box out steel plate 3-3, drinking-water pipe 3-2, steel plate of boxing out
The place of boxing out of 3-3 wears drinking-water pipe 3-2, and drinking-water pipe 3-2's is provided with valve 3-1, the upper end and valve position of the drinking-water pipe 3-2
In leaving a blank between steel plate 3-2 and upper shut-in well plate 2.
Further, the lower end of the drinking-water pipe 3-2 is inserted in downcast well pipe 4.
Further, the upper shut-in well plate 2 welds together with the inwall of steel pipe 1-1,
Further, the steel plate 3-3 that boxes out welds together with steel pipe 1-1 inwalls.
Further, it is externally provided with asphalt anticorrosion paint layer in the steel pipe 1-1.
When shunting in a well using this utility model, following steps should be followed：
Step one, when shut-in well is needed, steel seal ring 1-2 is outside steel pipe 1-1 for welding, by shut-in well sleeve pipe 1 bottom to base
The inside and outside wall brush asphalt anticorrosion paints of steel pipe 1-1 in the range of plinth bed course above 50mm three times, the rubber O-ring seal 1- of suitable dimension
3 are enclosed within steel seal ring 1-2 roots, then by the inner wall sleeve of shut-in well sleeve pipe steel pipe 1-1 in the outside of downcast well pipe 4；
Step 2, using graded sand and stone 5 the pre-welding position lower section of downcast well pipe 4 to the steel plate 3-3 that boxes out is backfilled；
Step 3, lower shut-in well plate 3 is put in sleeve steel pipe, drinking-water pipe bottom is entered in downcast well pipe 4, and upper end passes through
Aqueduct connects suction pump 8, and blood pressure lowering of persistently drawing water；
Step 4, the steel plate 3-3 that boxes out of plate 3 of shunting in a well under designed elevation welding, after steel plate 3-3 fixations of boxing out,
Suction pump 8 is closed and withdraws, while Quick fastening valve 3-1 plugs, prevent subsoil water overflow；
Step 5, steel plate 3-3 tops of boxing out pour water-proof concrete 7 to the bottom design absolute altitude of upper gas sealing plate 2, weld
Upper gas sealing plate 2；
Step 6, it is high with up to back-plane design top mark with the filling concrete upper gas sealing plate 2 of label identical with sole plate,
It is closely knit after perfusion, floating to complete shut-in well.
The foundations such as steel pipe 1-1 internal diameters, the thickness of shut-in well sleeve pipe 1, sealing ring material, size, drinking-water pipe 3-2 diameters, length
The well casing diameter of downcast well pipe 4, water yield and building base plate thickness determine, and the determiner of the latter for foundation ditch size,
Depth, formation condition and hydrogeologic condition, and Building Design key element etc..
This utility model is not limited to the embodiment, and anyone should learn what is made under enlightenment of the present utility model
Structure change, it is every that there is same or like technical scheme with this utility model, each fall within protection domain of the present utility model
Within.
Technology that this utility model is not described in detail, shape, construction part are known technology.
Claims (5)
1. a kind of new well-covering device for dewatering well, it is characterised in that：It is described including shut-in well sleeve pipe, upper shut-in well plate and lower shut-in well plate
Shut-in well sleeve pipe includes steel pipe, steel seal ring, rubber O-ring seal, and steel pipe socket sets on the outside of downcast well pipe, the outer wall of steel pipe
There is at least one steel seal ring, outer wall of steel pipe is arranged below rubber O-ring seal, shunts in a well on the upper shut-in well plate positioned at steel seal ring
Plate is located at the top of steel pipe, and upper shut-in well plate is set to a closed steel plate, and the lower shut-in well plate is located in steel pipe, and lower shut-in well plate includes staying
Hole steel plate, drinking-water pipe, the place of boxing out of steel plate of boxing out wears drinking-water pipe, and drinking-water pipe is provided with valve, the upper end of the drinking-water pipe
And valve is located at and leaves a blank between steel plate and upper shut-in well plate.
2. a kind of new well-covering device for dewatering well according to claim 1, it is characterised in that：Insert the lower end of the drinking-water pipe
Enter in downcast well pipe.
3. a kind of new well-covering device for dewatering well according to claim 1, it is characterised in that：The upper shut-in well plate and steel pipe
Inwall weld together.
4. a kind of new well-covering device for dewatering well according to claim 1, it is characterised in that：Steel plate and the steel pipe of boxing out
Inwall welds together.
5. a kind of new well-covering device for dewatering well according to claim 1, it is characterised in that：Drip is externally provided with the steel pipe
Blue or green anti-corrosion enamelled coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160987.4U CN206128099U (en) | 2016-11-01 | 2016-11-01 | Novel precipitation well shut -in well device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621160987.4U CN206128099U (en) | 2016-11-01 | 2016-11-01 | Novel precipitation well shut -in well device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206128099U true CN206128099U (en) | 2017-04-26 |
Family
ID=58575748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621160987.4U Active CN206128099U (en) | 2016-11-01 | 2016-11-01 | Novel precipitation well shut -in well device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206128099U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425372A (en) * | 2018-05-03 | 2018-08-21 | 中国建筑第二工程局有限公司 | A kind of protective device and foundation pit shut-in well method for the uninterrupted precipitation in foundation pit part |
| CN109025899A (en) * | 2018-08-14 | 2018-12-18 | 北京天润建设有限公司 | A kind of well-sealing device |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| CN110144918A (en) * | 2019-05-22 | 2019-08-20 | 四川童燊防水工程有限公司 | Hypogee dewatering well antiseepage plugging construction method |
| CN110820780A (en) * | 2019-11-27 | 2020-02-21 | 中冶天工集团天津有限公司 | Combined plugging device and method for high-water-pressure-drop water well |
| CN114718099A (en) * | 2022-03-21 | 2022-07-08 | 中国五冶集团有限公司 | Well plugging device for dewatering well |
| CN115142454A (en) * | 2022-06-27 | 2022-10-04 | 中国建筑第八工程局有限公司 | Active pressure reduction well plugging method under large inrush force condition |
-
2016
- 2016-11-01 CN CN201621160987.4U patent/CN206128099U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425372A (en) * | 2018-05-03 | 2018-08-21 | 中国建筑第二工程局有限公司 | A kind of protective device and foundation pit shut-in well method for the uninterrupted precipitation in foundation pit part |
| CN109025899A (en) * | 2018-08-14 | 2018-12-18 | 北京天润建设有限公司 | A kind of well-sealing device |
| CN109869116A (en) * | 2019-03-07 | 2019-06-11 | 东北大学 | A kind of plugging dewatering well structure and its construction method |
| CN110144918A (en) * | 2019-05-22 | 2019-08-20 | 四川童燊防水工程有限公司 | Hypogee dewatering well antiseepage plugging construction method |
| CN110820780A (en) * | 2019-11-27 | 2020-02-21 | 中冶天工集团天津有限公司 | Combined plugging device and method for high-water-pressure-drop water well |
| CN114718099A (en) * | 2022-03-21 | 2022-07-08 | 中国五冶集团有限公司 | Well plugging device for dewatering well |
| CN115142454A (en) * | 2022-06-27 | 2022-10-04 | 中国建筑第八工程局有限公司 | Active pressure reduction well plugging method under large inrush force condition |
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