CN216304686U - Deep basal pit pipe well precipitation well plugging device - Google Patents
Deep basal pit pipe well precipitation well plugging device Download PDFInfo
- Publication number
- CN216304686U CN216304686U CN202122039793.6U CN202122039793U CN216304686U CN 216304686 U CN216304686 U CN 216304686U CN 202122039793 U CN202122039793 U CN 202122039793U CN 216304686 U CN216304686 U CN 216304686U
- Authority
- CN
- China
- Prior art keywords
- sewage pump
- concrete
- well
- foundation pit
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model relates to a plugging device for a dewatering well of a deep foundation pit pipe well. The technical scheme is as follows: the bottom of pond main part is equipped with the concrete bottom plate, is equipped with the foundation ditch at the middle part of concrete bottom plate, and the middle part of foundation ditch is equipped with down the stagnant water sleeve pipe, the sewage pump is installed to stagnant water sleeve pipe cavity bottom, and the raceway is connected to the output of sewage pump, and the power cord of sewage pump upwards extends to steel sheet lid below, is equipped with the felt at the upside of sewage pump, and concrete layer is filled on the upper portion of felt, installs the steel sheet lid at the top of stagnant water sleeve pipe. The beneficial effects are that: the waterproof sleeve and the waterproof construction adopted by the utility model can effectively prevent sewage leakage, and the felt is arranged above the sewage pump, so that the sewage pump is effectively isolated from concrete, and the sewage pump is prevented from being blocked by concrete leakage; after the water conveying pipe and the power line are cut off, the steel plate cover of the wellhead is quickly sealed and welded, so that water seepage from an inlet is avoided, and the steel plate cover cannot be welded; the utility model has simple operation and fast construction progress, improves the construction quality and reduces the construction cost.
Description
Technical Field
The utility model relates to a deep foundation pit pipe well dewatering device, in particular to a deep foundation pit pipe well dewatering well plugging device.
Background
When the large-volume large-area structural water pool is constructed, because the underground water level is higher and the foundation pit is excavated deeper, a pipe well dewatering method is generally adopted for dewatering, so as to facilitate the excavation of the foundation pit and the construction of the foundation, but when the construction of the foundation is finished and the well point dewatering equipment is removed, the water pressure of the underground water can cause difficult plugging of the downcomer, and simultaneously the outward seepage after the water storage of the sewage pool is finished is avoided, causing pollution to underground water, generally pouring high-grade concrete in the downcomer until the concrete top plate is below 30 mm, welding and sealing the downcomer by adopting a steel plate with the thickness of 10 mm, however, because the underground water pressure is high, after the precipitation is stopped, the underground water still surges upwards in a large amount, and the plugging part of the precipitation pipe is easy to leak, so that the construction difficulty is high, the construction quality is difficult to control, the hidden danger is high after the construction, and the water seepage of the bottom plate of the water pool is difficult in the future.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides the plugging device for the dewatering well of the deep foundation pit pipe well, which effectively solves the problem of leakage caused by plugging of the dewatering pipe, is simple and convenient to operate and quick in construction progress, improves construction quality and reduces construction cost.
The utility model provides a deep basal pit tube well precipitation well plugging device which technical scheme is: comprises a concrete layer (1), a steel plate cover (2), a felt (4), a water stop sleeve (5), a sewage pump (6), a lower water pipe (7), a power line (8), a concrete bottom plate (9), a foundation pit (10) and a pool main body (11), the bottom of the pool main body (11) is provided with a concrete bottom plate (9), a foundation pit (10) is arranged in the middle of the concrete bottom plate (9), a water stop sleeve (5) is arranged downwards in the middle of the foundation pit (10), a sewage pump (6) is arranged at the bottom of the inner cavity of the water stop sleeve (5), the output end of the sewage pump (6) is connected with a lower water pipe (7), a power line (8) of the sewage pump (6) extends upwards to the lower part of the steel plate cover (2), the upper side of the sewage pump (6) is provided with a felt (4), the upper part of the felt (4) is filled with a concrete layer (1), and the top of the water stop sleeve (5) is provided with a steel plate cover (2).
Preferably, the upper end of the lower water delivery pipe (7) is provided with a switch valve (3).
Preferably, the waterproof sleeve (5) is made of a steel plate with the thickness of 4mm and is made into a sleeve with the diameter of 500 mm.
Preferably, the concrete bottom plate (9) is provided with raft steel bars (13).
Preferably, the top of the water stop sleeve (5) is welded on the raft steel bar (13).
Preferably, an upper water conveying pipe (12) is arranged above the steel plate cover (2).
The utility model has the beneficial effects that: the waterproof sleeve and the waterproof construction adopted by the utility model can effectively prevent sewage leakage, and the felt is arranged above the sewage pump, so that the sewage pump is effectively isolated from concrete, and the sewage pump is prevented from being blocked by concrete leakage; after the water conveying pipe and the power line are cut off, the steel plate cover of the wellhead is quickly sealed and welded, so that water seepage from an inlet is avoided, and the steel plate cover cannot be welded; the utility model solves the problem of leakage caused by untight plugging of the pool; not only easy and simple to handle, the construction progress is fast, improves construction quality moreover, reduces construction cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention when a steel plate cover is not welded;
in the upper diagram: concrete layer 1, steel plate cover 2, switch valve 3, felt 4, stagnant water sleeve 5, sewage pump 6, lower raceway 7, power cord 8, concrete bottom plate 9, foundation ditch 10, pond main part 11, go up raceway 12, raft reinforcing bar 13.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Wherein, the upper end of the lower water pipe 7 is provided with a switch valve 3 which can be connected with an upper water pipe 12 arranged above the steel plate cover 2;
the waterproof jacket pipe 5 is made of a steel plate having a thickness of 4mm and has a diameter of 500 mm.
Preferably, foretell concrete bottom plate 9 is equipped with raft reinforcing bar 13, and foretell stagnant water sleeve 5's top welding is at raft reinforcing bar 13, can guarantee that concrete bottom plate 9 and stagnant water sleeve 5 are fixed firm, and the foundation bottom plate structure is not influenced, and lower floor's reinforcing bar can also take the reinforcement measure on the bottom plate.
The using process of the utility model is as follows:
1. installation sewage pump
A sewage pump is placed at the bottom of a precipitation well made of a water stop sleeve, a water delivery pipe is connected to a drainage ditch at the outer side of the foundation pit, and a switch valve is additionally arranged on the water delivery pipe, so that the switch valve is closed after the precipitation well is plugged, and the groundwater is prevented from being backwashed;
2. precipitation well precipitation
After the sewage pump is installed, the sewage pump begins to descend to enable the water level to be lowered to a position 3-4 meters below the bottom plate, and the water level is kept unchanged;
3. wadding felt cotton wool
After the sewage pump is installed, felt or cotton wool is filled above the sewage pump, so that concrete is effectively isolated, and the sewage pump is prevented from being blocked by the seepage of the concrete layer above the sewage pump;
4. pouring high-grade concrete
Referring to fig. 2, after the felt is filled, concrete is poured, the grade of a concrete layer is recommended to be one grade larger than that of the bottom plate concrete, the concrete is poured into the dewatering well, the dewatering well is vibrated and compacted by using a vibrating rod, and the pouring is stopped when the concrete is poured to be 100mm below the switch valve;
5. closing the sewage pump switch, cutting off the water pipe and cable
And when the concrete reaches 80% of the designed strength, the switch is closed, and the water delivery pipe and the power line above the switch of the sewage pump are cut off.
6. Welding plugging steel plate
The steel plate cover of the wellhead is sealed and welded quickly after the water conveying pipe and the power line are cut off, and the phenomenon that the steel plate cover cannot be welded due to water seepage of an inlet is avoided. The steel plate cover welding plugging means that a steel cover plate is directly welded on the water-stopping steel sleeve, and the steel plate cover and the water-stopping steel sleeve are required to be fully welded to prevent water seepage.
The difference from the embodiment 1 is that: and finally, pouring impervious micro-expansion agent concrete with a higher-level strength on the steel plate cover, pouring the concrete until the concrete is flush with the concrete bottom plate 9, and filling the foundation pit 10 to better prevent leakage.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent changes made according to the technical solution of the present invention shall fall within the scope of the present invention as claimed.
Claims (6)
1. The utility model provides a deep basal pit tube well precipitation well plugging device, characterized by: comprises a concrete layer (1), a steel plate cover (2), a felt (4), a water stop sleeve (5), a sewage pump (6), a lower water pipe (7), a power line (8), a concrete bottom plate (9), a foundation pit (10) and a pool main body (11), the bottom of the pool main body (11) is provided with a concrete bottom plate (9), a foundation pit (10) is arranged in the middle of the concrete bottom plate (9), a water stop sleeve (5) is arranged downwards in the middle of the foundation pit (10), a sewage pump (6) is arranged at the bottom of the inner cavity of the water stop sleeve (5), the output end of the sewage pump (6) is connected with a lower water pipe (7), a power line (8) of the sewage pump (6) extends upwards to the lower part of the steel plate cover (2), the upper side of the sewage pump (6) is provided with a felt (4), the upper part of the felt (4) is filled with a concrete layer (1), and the top of the water stop sleeve (5) is provided with a steel plate cover (2).
2. The plugging device for the dewatering well of the deep foundation pit pipe well according to claim 1, wherein: the upper end of the lower water delivery pipe (7) is provided with a switch valve (3).
3. The plugging device for the dewatering well of the deep foundation pit pipe well according to claim 1, wherein: the water stop sleeve (5) is made of a steel plate with the thickness of 4mm and has the diameter of 500 mm.
4. The plugging device for the dewatering well of the deep foundation pit pipe well according to claim 1, wherein: the concrete bottom plate (9) is provided with raft steel bars (13).
5. The plugging device for the dewatering well of the deep foundation pit pipe well is characterized in that: the top of the water stop sleeve (5) is welded on a raft plate steel bar (13).
6. The plugging device for the dewatering well of the deep foundation pit pipe well according to claim 2, wherein: an upper water delivery pipe (12) is arranged above the steel plate cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122039793.6U CN216304686U (en) | 2021-08-27 | 2021-08-27 | Deep basal pit pipe well precipitation well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122039793.6U CN216304686U (en) | 2021-08-27 | 2021-08-27 | Deep basal pit pipe well precipitation well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216304686U true CN216304686U (en) | 2022-04-15 |
Family
ID=81088018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122039793.6U Active CN216304686U (en) | 2021-08-27 | 2021-08-27 | Deep basal pit pipe well precipitation well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216304686U (en) |
-
2021
- 2021-08-27 CN CN202122039793.6U patent/CN216304686U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201172828Y (en) | Well-covering device for dewatering well | |
| CN103343543B (en) | Foundation pit dewatering well pressure-reduction-type plugging method | |
| CN102797266B (en) | Well sealing waterproof construction method for dewatering well | |
| CN104711994A (en) | Foundation pit deep well rainfall and plugging construction method | |
| CN207193996U (en) | A kind of precipitation pipe well well-sealing device | |
| CN109736340B (en) | Dewatering device and method for guaranteeing integrity of cushion layer by reserving dewatering well on foundation slab | |
| CN107326918B (en) | Hidden type plugging impervious water collecting well penetrating through raft plates and construction process thereof | |
| CN109519150B (en) | Dewatering well plugging device and method for large water yield | |
| CN105178342B (en) | Precipitation well casing and method for blocking reserved hole of foundation pit through precipitation well casing | |
| CN205205844U (en) | Member is used in construction of tubular well precipitation in elevator foundation ditch or sump pit | |
| CN212506349U (en) | Water-logging well sealing device for water-lowering zone of ultra-deep foundation pit pipe well | |
| CN106088123A (en) | A kind of sand geology steel tube well fall water level device and construction method thereof | |
| CN203768925U (en) | Seal device for dewatering well in foundation pit | |
| CN207121916U (en) | Shut-in well structure | |
| CN216304686U (en) | Deep basal pit pipe well precipitation well plugging device | |
| CN104060622A (en) | Method for discharging water in pint through steel bucket in pit | |
| CN103174154A (en) | Underground building bottom plate water burst well pit solid seal method and auxiliary water lowering device | |
| CN114197508B (en) | Easy-to-seal water draining device, manufacturing method and using method thereof | |
| CN110258660A (en) | The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating | |
| CN204825940U (en) | Precipitation well well casing | |
| CN211547782U (en) | Pipe well sealing device for high-pressure water head of sand layer deep foundation pit | |
| CN211849526U (en) | Deep basal pit secretly buries drainage well slip casting block structure | |
| CN112227395A (en) | Well sealing device and method for large-water-pressure-drop well in building raft | |
| CN207314371U (en) | Use the foundation trench structure of cylinder caisson | |
| CN204491643U (en) | The constructing structure that on a kind of raft plate, dewatering well is closed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |