CN219909023U - Basement dewatering well plugging device - Google Patents
Basement dewatering well plugging device Download PDFInfo
- Publication number
- CN219909023U CN219909023U CN202321351183.2U CN202321351183U CN219909023U CN 219909023 U CN219909023 U CN 219909023U CN 202321351183 U CN202321351183 U CN 202321351183U CN 219909023 U CN219909023 U CN 219909023U
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- China
- Prior art keywords
- steel
- dewatering well
- cover plate
- plate
- basement
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 104
- 239000010959 steel Substances 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 12
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000353135 Psenopsis anomala Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model provides a basement dewatering well plugging device which comprises a steel sleeve sleeved outside a PVC pipe of a dewatering well, wherein a steel plate water stop ring is welded in the middle of the outer wall of the steel sleeve, an annular flange plate is welded in the middle of the inner wall of the steel sleeve, 8 holes with the diameter of 16mm are reserved on the annular flange plate and are used for fixing bolts with a top steel cover plate, the specification of the bolts is M14, the heads of the bolts face downwards, the threads of the bolts face upwards, the heads of the bolts and the annular flange plate are reserved with holes Kong Manhan, the top steel cover plate adopts a flange plate with the diameter of 330mm and the thickness of 8mm, a hole with the diameter of 48mm is reserved in the center of the steel cover plate and is fully welded with a steel pipe to form a chimney-shaped structure, the screwed end of the steel pipe is wound with a white raw adhesive tape and is tightly screwed with a galvanized cast iron cap to be sealed, and finally concrete is poured on the upper part of the steel cover plate. According to the utility model, the size of the water outlet of the well pipe is reduced by screwing the steel cover plate and the flange plate on the inner wall of the steel sleeve and welding the steel pipe at the center, so that the dewatering well is gradually sealed.
Description
Technical Field
The utility model belongs to the technical field of constructional engineering, and particularly relates to a basement dewatering well plugging device.
Background
The dewatering well generally adopts a PVC corrugated pipe, and a steel sleeve is sleeved outside the PVC pipe. A circle of steel plate water stop ring is fully welded on the outer wall of the steel sleeve, an annular flange is fully welded on the inner wall of the sleeve, a reserved hole in the center of the top closed cover plate and one end (with threads) of the steel pipe are fully welded to form a chimney-type shape, and the threaded end of the steel pipe is tightly screwed and sealed by a galvanized cast iron cap.
Before the roof of the main building structure is capped and the top plate of the ground warehouse is covered with soil, the underground structure is prevented from floating upwards, a certain number of dewatering wells are reserved according to design requirements, and the underground water level is lowered below the anti-floating water level; the local dewatering well can not be drained due to other factors such as rainwater and the like, and the local dewatering well is reserved after the construction of the bottom plate, so that the problem of plugging the dewatering well occurs.
The well is sealed by a plugging method that melon seed slices are filled in a well pipe firstly, then grouting is pressed, and concrete is poured, wherein the basic operation sequence and related technical requirements are as follows:
(1) And excavating the foundation pit to a design elevation, and cleaning the foundation surface.
(2) Paving a leveling layer, coating a steel pipe on the outer sleeve of the PVC pipe, carrying out water stop ring on the outer wall of the steel pipe, welding a waterproof material paved on the dewatering well edge on the surface of the steel pipe, and coating water stop putty around the joint.
(3) Paving a waterproof material protection layer and bottom plate steel bars, breaking and bending inner edge stressed bars at the well hole, reserving a construction closed steel plate space, pouring bottom plate concrete and tamping compactly.
(4) Cutting off the well pipe, pumping water in large capacity, filling C15 concrete into the well pipe, and closing the wellhead.
(5) And (3) welding a closed steel plate, wherein full welding and sealing are required, connecting the inner edge stress bars of the bottom plate, and pouring concrete (micro-expansion).
The plugging of the dewatering well is an important process of underground waterproof construction, and the tight plugging is ensured, so that the hidden danger of leakage is eliminated.
The traditional dewatering well plugging method uses a steel cover plate to be welded with the inner wall of the steel sleeve, so that a water stopping effect is achieved. The plugging method has the following defects: for areas with abundant groundwater, the groundwater level is higher, and sometimes after concrete is poured into a dewatering well, the inside of a sleeve is not completely sealed, and a small amount of groundwater still exists, so that the welding quality of a steel cover plate cannot be guaranteed, and even welding cannot be performed.
Disclosure of Invention
In order to solve the problems, the utility model discloses a basement dewatering well plugging device, which aims at the problem of sealing a dewatering well with abundant groundwater and overlarge water inflow, and underground water still flows out after concrete is poured into the dewatering well, and the size of a water outlet of a well pipe is reduced by screwing a steel cover plate and a flange plate on the inner wall of a steel sleeve, a rubber gasket bolt and welding a steel pipe at the center, so that the dewatering well is gradually sealed.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a basement dewatering well plugging device, includes the steel bushing of cover in dewatering well PVC outside of tubes portion, steel bushing outer wall middle part welding has the steel sheet retaining ring, steel bushing inner wall middle part welding has annular ring flange, it is fixed with top steel apron to reserve 8 diameters 16 mm's hole on the annular ring flange, and the bolt specification is M14, and the head is screw thread up down, head and annular ring flange reserved hole Kong Manhan, top steel apron adopts diameter 330mm, thick 8 mm's ring flange steel sheet, and steel apron center reservation diameter 48mm hole forms "chimney" molding with the steel pipe full weld, the steel pipe takes the screwed end to wind white raw tape and screw up galvanized cast iron block and seal, steel apron upper portion pouring concrete at last.
Further, a rubber gasket with the thickness of 3mm is placed between the top steel cover plate and the annular flange, and the top is fixed by screwing a double nut.
Further, the diameter of the steel sleeve is 351mm, the thickness of the steel sleeve is 5mm, and the height of the steel sleeve is the same as the thickness of the basement bottom plate.
Further, the steel plate water stop ring is 50mm wide and 6mm thick.
Further, a waterproof layer is arranged between the steel sleeve and the cushion layer of the basement bottom plate.
Compared with the prior art, the utility model has the following effects:
(1) The concrete on the outer side of the sleeve and the bottom plate are poured together, and at the moment, the water stop ring of the steel plate on the outer side of the sleeve plays a first water stop role.
(2) Aiming at a dewatering well with overlarge water inflow, welding a steel pipe through a reserved hole of a steel cover plate to reduce the size of a water outlet at the top, and when the inside of the steel pipe is in water environment, connecting the cover plate with a flange plate on the inner wall of a sleeve by bolts, wherein the flange plate is provided with a rubber gasket; the dewatering well with overlarge water inflow gradually closes the dewatering well by gradually reducing the size of the water outlet at the top of the cover plate.
(3) The inside of the steel pipe is in water environment, and the steel cover plate can not be welded by adopting a gasket and a bolt.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
list of drawing identifiers:
1. PVC pipe of dewatering well; 2. a steel sleeve; 3. a steel plate water stop ring; 4. an annular flange; 5. a bolt; 6. a top steel cover plate; 7. a galvanized cast iron cap; 8. a rubber gasket; 9. a waterproof layer; 10. and (3) a steel pipe.
Detailed Description
The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model.
As shown in figure 1, the basement dewatering well plugging device comprises a steel sleeve 2 sleeved outside a dewatering well PVC pipe 1, wherein a steel plate water stop ring 3 is welded in the middle of the outer wall of the steel sleeve, an annular flange 4 is welded in the middle of the inner wall of the steel sleeve, 8 holes with the diameter of 16mm are reserved on the annular flange and are used for fixing bolts 5 and a top steel cover plate 6, the specifications of the bolts are M14, the heads face downwards and are upwards in screw threads, the heads and the annular flange are reserved with holes Kong Manhan, the top steel cover plate adopts a flange steel plate with the diameter of 330mm and the thickness of 8mm, the holes with the diameter of 48mm are reserved in the center of the steel cover plate and fully welded with a steel pipe 10 to form a chimney-shaped structure, the screwed ends of the steel pipe are wound with a white raw rubber belt and are tightly screwed with a galvanized cast iron cap 7 to be closed, and finally the upper part of the steel cover plate is poured with concrete.
In the embodiment, a rubber gasket 8 with the thickness of 3mm is placed between the top steel cover plate and the annular flange plate, and the top is fixed by screwing double nuts.
In the embodiment, the diameter of the steel sleeve is 351mm, the thickness of the steel sleeve is 5mm, and the height of the steel sleeve is equal to the thickness of the basement bottom plate.
In the embodiment, the steel plate water stop ring is 50mm wide and 6mm thick.
A waterproof layer 9 is arranged between the steel sleeve and the cushion layer of the basement bottom plate in the embodiment.
By adopting the scheme, the construction method of the utility model comprises the following steps:
the dewatering well generally adopts a PVC corrugated pipe with the diameter of 300mm, and a steel sleeve is sleeved outside the PVC pipe. And manufacturing a steel sleeve before pouring the basement bottom plate, wherein when the bottom plate steel bars meet the steel sleeve of the dewatering well, the steel bars bypass from the periphery and additional steel bars are additionally arranged on the periphery. The steel sleeve is made by the following steps: the diameter of the sleeve is 351mm, the thickness of the sleeve is 5mm, the height of the sleeve is equal to the thickness of the basement bottom plate, a circle of 50mm wide and 6mm thick steel plate water stop ring is fully welded at the middle part of the outer wall of the steel sleeve, 50mm wide and 6mm thick annular flanges are fully welded at the inner wall of the sleeve, 8 holes with the diameter of 16mm are reserved in the flanges and are used for fixing bolts and top steel cover plates, the bolt specification is M14, the head is downwards in a threaded mode, the threads face upwards, and the reserved holes of the head and the flanges are fully welded.
Cutting off the well pipe, pumping water in large quantity, filling concrete into the well pipe, and installing a cover plate to seal the well mouth. The top sealing cover plate adopts a flange plate with the diameter of 330mm and the thickness of 8mm (8 holes with the diameter of 16mm are reserved), the hole with the diameter of 48mm is reserved in the center of the steel cover plate and fully welded with a steel pipe to form a chimney-type shape, a rubber gasket with the thickness of 3mm is placed between the cover plate and the flange plate during sealing, double nuts are screwed on the top for fixation, the screwed end of the steel pipe with the welded cover plate winds a white raw adhesive tape and is screwed on a galvanized cast iron cap for sealing, and finally concrete is poured on the upper part of the steel cover plate, so that the final plugging of the dewatering well is completed.
It should be noted that the foregoing merely illustrates the technical idea of the present utility model and is not intended to limit the scope of the present utility model, and that a person skilled in the art may make several improvements and modifications without departing from the principles of the present utility model, which fall within the scope of the claims of the present utility model.
Claims (5)
1. The utility model provides a basement dewatering well plugging device, its characterized in that, including the steel bushing of cover in dewatering well PVC outside of tubes, steel bushing outer wall middle part welding has the steel sheet retaining ring, steel bushing inner wall middle part welding has annular flange, it is fixed with top steel apron to reserve 8 diameters 16 mm's holes on the annular flange, and the bolt specification is M14, and the head is screw thread up down, head and annular flange reserved hole Kong Manhan, top steel apron adopts diameter 330mm, thick 8 mm's ring flange steel sheet, and 48mm diameter holes are reserved in steel apron center and steel pipe full weld form "chimney" molding, steel pipe area screw-threaded end winds white raw tape and screws up zinc-plated cast iron block and seals, and finally steel apron upper portion concreting.
2. The basement dewatering well plugging device of claim 1, wherein a rubber gasket with a thickness of 3mm is placed between the top steel cover plate and the annular flange plate, and the top steel cover plate is fixed by screwing double nuts.
3. The basement dewatering well plugging device of claim 1, wherein said steel casing is 351mm in diameter, 5mm in thickness, and is as thick as the basement floor.
4. The basement dewatering well plugging device of claim 1, wherein the steel plate water stop ring is 50mm wide and 6mm thick.
5. The basement dewatering well plugging device of claim 1, wherein a waterproof layer is provided between the steel sleeve and the mat layer of the basement bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321351183.2U CN219909023U (en) | 2023-05-31 | 2023-05-31 | Basement dewatering well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321351183.2U CN219909023U (en) | 2023-05-31 | 2023-05-31 | Basement dewatering well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219909023U true CN219909023U (en) | 2023-10-27 |
Family
ID=88468398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321351183.2U Active CN219909023U (en) | 2023-05-31 | 2023-05-31 | Basement dewatering well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219909023U (en) |
-
2023
- 2023-05-31 CN CN202321351183.2U patent/CN219909023U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |