CN219931033U - Station bottom plate dewatering well plugging device - Google Patents
Station bottom plate dewatering well plugging device Download PDFInfo
- Publication number
- CN219931033U CN219931033U CN202320198531.0U CN202320198531U CN219931033U CN 219931033 U CN219931033 U CN 219931033U CN 202320198531 U CN202320198531 U CN 202320198531U CN 219931033 U CN219931033 U CN 219931033U
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- dewatering well
- ball valve
- plugging device
- well
- shrouding
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000001556 precipitation Methods 0.000 claims description 36
- 238000010276 construction Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 17
- 239000003673 groundwater Substances 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model relates to the technical field of geotechnical engineering construction equipment, in particular to a station bottom plate dewatering well plugging device, which comprises a dewatering well, wherein a sealing plate is arranged in the dewatering well, a ball valve is arranged at the upper end of the sealing plate, the ball valve is communicated with the inside of the dewatering well, and a water pump pipeline is inserted into the bottom of the dewatering well.
Description
Technical Field
The utility model relates to the technical field of geotechnical engineering construction equipment, in particular to a station bottom plate dewatering well plugging device.
Background
With the unprecedented development of geotechnical engineering in China, the number of foundation pit engineering in China is increased, the scale is also increased, the depth of the foundation pit is deepened along with the deepening, and the complicated underground geological conditions enable the foundation pit to be rapidly and scientifically raised. At present, large-scale and deep foundation pits in China are more, after the earthwork of the foundation pit is excavated, after the earthing layer above the bearing water level is suddenly reduced, the phenomenon of sudden gushing of the foundation pit is very easy to occur, and pumping water by adopting a dewatering well is an effective method for guaranteeing the stability of sudden gushing resistance of a foundation pit bottom plate. However, the plugging of the dewatering well of the foundation pit is difficult, the water pressure and the water quantity of the foundation pit are large, once the water pumping is stopped, the water level rises sharply, the foundation pit surge occurs, the buoyancy is generated on the foundation pit bottom plate, and the normal construction is influenced.
The traditional construction is that after the foundation pit is excavated and the bottom is seen, the design drawing requires that the dewatering well is pulled out immediately, and a cushion layer is constructed. However, in a deep foundation pit with abundant underground water levels, the underground water pressure is large, the wall of a large-diameter dewatering well is smooth and has no adhesive force, when waterproof concrete is used for plugging, the underground water pressure is large, waterproof concrete slurry is easy to disperse, the concrete cannot achieve a waterproof plugging effect, cracks can exist after the concrete is plugged even in places with small underground water pressure, and the underground water still permeates from a concrete gap, so that the later waterproof construction is not facilitated; the university urban south station approaches the existing structural line, and when the main structure is not constructed, a dewatering well is needed to stabilize and restrict the pressure of the underground water level.
At present, a flange plate is reserved at a wellhead, a prefabricated blind plate is adopted at the later stage, and a rubber pad is additionally arranged in the middle of the flange plate; or adopting a steel plate to carry out welding disposable plugging. The two methods have the defects of different degrees, firstly, a flange is reserved at a wellhead, the flange is blocked at the later stage, and the prefabricated blind plate and the reserved flange are easy to deform when the rubber pad is extruded in the process of using bolts for connection; the steel plate is directly welded around the wellhead, and the welding speed cannot catch up with the rising speed of the groundwater. Both methods are easy to cause water leakage of the plugging joint of the late precipitation well.
Disclosure of Invention
The utility model aims at: to the problem that the prior art exists if reserve the flange at the well head, later stage shutoff, then can cause prefabricated blind plate and reserve the flange and make its deformation easily when using bolted connection in-process, and if connect the welding steel sheet around the well head, the welding speed does not catch up groundwater rising speed, leads to unable welded problem, provides a station bottom plate precipitation well plugging device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a station bottom plate precipitation well plugging device, includes precipitation well, the inside shrouding that is equipped with of precipitation well, the shrouding upper end is equipped with the ball valve, the ball valve with precipitation well inside intercommunication, just the ball valve can connect the water pump pipeline, the water pump pipeline can pass through ball valve direct insert precipitation well bottom portion draws water with the water pump pipeline pass through the ball valve direct insert precipitation well bottom portion for the water level reduces in the precipitation well, avoids appearing welding speed and catches up with the condition of groundwater rising speed, the through-hole has been seted up at the shrouding middle part, the shrouding lower extreme passes through the through-hole is connected with the back cover drum, reduces precipitation well water level through placing the clear water pump in the back cover drum, the back cover drum has been seted up in the lateral wall department that is close to the lower extreme, at least one is seted up to the water drain hole, lets the water in the back cover drum be in a plane and keep the air intercommunication in the outside, the back cover drum with the end department of the one end that the shrouding is connected is equipped with the blind plate, prevents groundwater seepage.
The utility model relates to a station bottom plate dewatering well plugging device, which is characterized in that a sealing plate is arranged on the inner wall of a dewatering well, a ball valve is arranged on the sealing plate, and the ball valve directly penetrates through the sealing plate and is communicated with the inside of the dewatering well, so that a water pump pipeline can be inserted into the bottom of the dewatering well through the ball valve and a self-priming pump is started to pump water when welding is performed, and the problem that the water level of groundwater is reduced, the welding speed cannot catch up with the rising speed of groundwater when welding is performed is solved.
As a preferable scheme of the utility model, the dewatering well is of an annular structure, and the sealing plate is of a sealing plate structure.
As the preferable scheme of the utility model, the sealing plate is in full-welded connection with the dewatering well, and the blind plate is in full-welded connection with the bottom sealing cylinder, so that the stability of welding is ensured, and the condition of underground water leakage is avoided.
As the preferable scheme of the utility model, the diameters of the through hole, the bottom sealing cylinder and the blind plate are the same and 500-800mm, so that tight matching among the through hole, the bottom sealing cylinder and the blind plate is ensured.
As a preferable scheme of the utility model, the diameter of the ball valve is 50mm-100mm.
As a preferable scheme of the utility model, the diameter of the water discharge hole is 100mm-200mm.
As a preferable scheme of the utility model, the connection relation between the blind plate and the back cover cylinder is that the blind plate and the back cover cylinder are welded and fully welded, so that the welding stability is ensured, and the condition of underground water leakage is avoided.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. the utility model relates to a station bottom plate dewatering well plugging device, which is characterized in that a sealing plate is arranged on the inner wall of a dewatering well, a ball valve is arranged on the sealing plate, and the ball valve directly penetrates through the sealing plate and is communicated with the inside of the dewatering well, so that a water pump pipeline can be inserted into the bottom of the dewatering well through the ball valve and a self-priming pump is started to pump water when welding is performed, and the problem that the water level of groundwater is reduced, the welding speed cannot catch up with the rising speed of groundwater when welding is performed is solved.
2. The utility model relates to a station bottom plate dewatering well plugging device, which is characterized in that a water drain hole is formed in the lower end of the side wall of a bottom sealing cylinder arranged under a dewatering well, so that after the dewatering well plugging device is placed in the dewatering well, the water level inside and outside the bottom sealing cylinder is ensured to be consistent, the water level difference is avoided, meanwhile, the water drain hole can enable the inside of the bottom sealing cylinder to be communicated with the outside air, and the condition of vacuum inside the bottom sealing cylinder is avoided.
Drawings
FIG. 1 is a schematic view of the structure of an unconnected blind panel of the present utility model.
FIG. 2 is a schematic top view of an unconnected blind panel of the present utility model;
FIG. 3 is a schematic cross-sectional view of an unconnected blind panel of the present utility model;
FIG. 4 is a schematic view of the construction of the present utility model after being installed in a dewatering well;
FIG. 5 is a schematic top view of the utility model after installation into a dewatering well;
FIG. 6 is a schematic cross-sectional view of the present utility model after being installed in a dewatering well;
FIG. 7 is a schematic view of the present utility model after installation;
FIG. 8 is a schematic cross-sectional view of the completion of the installation of the present utility model.
Icon: 1-sealing plates; 2-ball valve; 3-a bottom sealing cylinder; 4-valve switch; 5-a water discharge hole; 6-dewatering well; 7-blind plates; 11-through holes.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The utility model provides a station bottom plate precipitation well plugging device as shown in fig. 4-6, includes precipitation well 6, the inside shrouding 1 that is equipped with of precipitation well 6, the diameter of its shrouding 1 is the same with the diameter of precipitation well 6, and the connection of being convenient for avoids appearing too big connection not on and the too little unable condition of connecting, shrouding 1 upper end is equipped with ball valve 2, ball valve 2 with precipitation well 1 inside intercommunication, just ball valve 2 can external water pump pipeline, water pump pipeline can insert through ball valve 2 direct insertion precipitation well 6's bottom, it is inside to insert precipitation well 6 with water pump pipeline directly from ball valve 2, can begin to draw water after opening valve switch 4, makes the water level decline in precipitation well 6 do benefit to the connection between follow-up each part through drawing water.
The through hole 11 has been seted up at its foretell shrouding 1 middle part, shrouding 1 lower extreme passes through hole 11 is connected with back cover drum 3, connects back cover drum 3 at shrouding 1's middle part and be located shrouding 1's lower extreme, and wait to shrouding 1 place and connect in precipitation well 6 inside its back cover drum 3 be located precipitation well 6's inside equally to put into the clear water pump in back cover drum 3, stretch into precipitation well 6 inside with the clear water pump and be used for the water level reduction, guarantee that back cover drum 3 top back cover shrouding 1 can weld with precipitation well 6, can not be disturbed by the circumstances that the water level risen in the precipitation well 6, as shown in fig. 1-3.
The bottom sealing cylinder 3 is provided with a drain hole 5 near the side wall of the lower end, at least one drain hole 5 is provided, and the drain hole 5 is provided at the side wall of the lower end of the bottom sealing cylinder 3 mainly because when the bottom sealing cylinder 3 stretches into the dewatering well 6, a part of the bottom sealing cylinder 3 is submerged into the lower end of the water line to cause the rising condition of the water line, and the bottom sealing cylinder 3 is provided with the drain hole 5, the outside and the inside of the bottom sealing cylinder 3 are communicated through the drain hole 5, the water level is kept consistent, and the vacuum condition inside the bottom sealing cylinder 3 is avoided, as shown in fig. 1-3.
The end of the bottom sealing cylinder 3 connected with the sealing plate 1 is provided with a blind plate 7, and the bottom sealing cylinder 3 is sealed by the blind plate 7, as shown in fig. 7-8.
The dewatering well 6 is of a ring-shaped structure, and the sealing plate 1 is of a sealing plate structure
The connection relationship between the dewatering well 6 and the sealing plate 1 is full-welded, so that the stability of the connection between the dewatering well 6 and the sealing plate 1 is ensured, and the safety is improved.
The sealing plate 1 is connected with the dewatering well 6 in a full-welded mode, the blind plate 7 is connected with the bottom sealing cylinder 3 in a full-welded mode, and the stability and the safety of connection are improved.
The diameter of the through hole 11, the diameter of the bottom sealing cylinder 3 and the diameter of the blind plate 7 are the same and are all 500-800mm.
The diameter of the ball valve 2 is 50-100mm.
The diameter of the water discharge hole 5 is 100-200mm.
Through set up through-hole 11 and connect bottom sealing cylinder 3 through-hole 11 on the shrouding 1 the same with precipitation well 6 diameter to establish to ball valve 2 by one side at through-hole 11, and ball valve 2 position is in the up end of shrouding 1 and with the inside intercommunication of precipitation well 6, place the plugging device that connects in precipitation well 6 and put into the clear water pump in bottom sealing cylinder 3, avoid the water level to make quick rising through the clear water pump to the inside water level of precipitation well 6, carry out full-welded connection with shrouding 1 and precipitation well 6 simultaneously, wait to take out the clear water pump after shrouding 1 and precipitation well 6 welding are accomplished, at this moment because the effect of the wash port 5 of seting up on the bottom sealing cylinder 3 for inside and outside water line keeps unanimous in bottom sealing cylinder 3, extend into direct water pump pipe from ball valve 2 and submergence in precipitation well 6, open valve switch 4 draws water, at the same time in bottom sealing cylinder 3 upper portion full-welded blind plate 7, it can not exceed the face of bottom sealing cylinder 3 to guarantee in the water level of precipitation well 6 in the welding process, after the welding is accomplished, check that the leak in time appears in every place if no leak welding occurs.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The utility model provides a station bottom plate precipitation well plugging device, its characterized in that, including precipitation well (6), precipitation well (6) inside is equipped with shrouding (1), shrouding (1) upper end is equipped with ball valve (2), ball valve (2) with precipitation well (6) inside intercommunication, just ball valve (2) can external water pump pipeline, its water pump pipeline can pass through ball valve (2) inserts precipitation well (6) bottom, through-hole (11) have been seted up at shrouding (1) middle part, shrouding (1) lower extreme is passed through-hole (11) are connected with back cover drum (3), back cover drum (3) are being close to the lateral wall department of lower extreme and have been seted up wash port (5), at least one has been seted up to wash port (5), back cover drum (3) with the end department of the one end that shrouding (1) are connected is equipped with blind plate (7).
2. A station floor dewatering well plugging device according to claim 1, wherein the dewatering well (6) is of annular structure and the sealing plate (1) is of sealing plate structure.
3. Station floor dewatering well plugging device according to claim 1, characterized in that the sealing plate (1) is in full welded connection with the dewatering well (6), and the blind plate (7) is in full welded connection with the bottom sealing cylinder (3).
4. Station floor dewatering well plugging device according to claim 1, characterized in that the diameter of the through hole (11), the bottom closing cylinder (3) and the blind plate (7) is the same and the diameter is 500-800mm.
5. A station floor dewatering well plugging device according to claim 2, wherein the ball valve (2) has a diameter of 50-100mm.
6. Station floor dewatering well plugging device according to claim 1, characterized in that the diameter of the drainage holes (5) is 100-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320198531.0U CN219931033U (en) | 2023-02-13 | 2023-02-13 | Station bottom plate dewatering well plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320198531.0U CN219931033U (en) | 2023-02-13 | 2023-02-13 | Station bottom plate dewatering well plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219931033U true CN219931033U (en) | 2023-10-31 |
Family
ID=88501435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320198531.0U Active CN219931033U (en) | 2023-02-13 | 2023-02-13 | Station bottom plate dewatering well plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219931033U (en) |
-
2023
- 2023-02-13 CN CN202320198531.0U patent/CN219931033U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |