CN219100100U - Quick plugging device of deep basal pit dewatering well - Google Patents
Quick plugging device of deep basal pit dewatering well Download PDFInfo
- Publication number
- CN219100100U CN219100100U CN202223187808.4U CN202223187808U CN219100100U CN 219100100 U CN219100100 U CN 219100100U CN 202223187808 U CN202223187808 U CN 202223187808U CN 219100100 U CN219100100 U CN 219100100U
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- flange
- steel sleeve
- plugging device
- dewatering well
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model provides a quick plugging device of deep basal pit dewatering well, relate to dewatering well plugging device technical field, the technical scheme who adopts includes joint at dewatering well open-ended stagnant water steel sleeve pipe and from the bottom up pour in proper order at the bed course of dewatering well top, the bottom plate, stagnant water steel sleeve pipe opening is provided with the flange, flange joint has the flange blind flange, the bed course is provided with the heavy groove around stagnant water steel sleeve pipe, the upper surface parallel and level of flange and bed course, stagnant water steel sleeve pipe is higher than the outer wall of heavy groove bottom surface part and is provided with the water stop ring, the bottom plate is located the regional post-pouring groove that is provided with at flange blind flange top, the radius of post-pouring groove is greater than the radius of flange. According to the utility model, the flange blind plate is utilized to block the upward path of the water flow in the dewatering well, and the water stop ring is utilized to block the upward path of the water flow outside the water stop steel sleeve, so that the leakage risk is reduced, and the blocking effect is enhanced; the sinking groove is arranged on the cushion layer, and the height of the water stop steel sleeve is controlled, so that the effective thickness of the bottom plate at the top of the flange blind plate is ensured after the bottom plate is leveled.
Description
Technical Field
The utility model relates to the technical field of dewatering well plugging devices, in particular to a rapid plugging device for a deep foundation pit dewatering well.
Background
In the basement construction stage, in order to reduce the groundwater level, the precipitation requirement is to reduce the groundwater level below the design elevation according to the design requirement, prevent the bottom plate from floating upwards, the precipitation well needs to continue pumping water after the basement bottom plate construction is completed, and a part of precipitation well needs to be reserved. Meanwhile, in the traditional dewatering well plugging method, after dewatering is stopped, a small barrel is firstly hung at the mouth part of the dewatering well pipe, so that concrete is prevented from entering the hole, plugging agents, quick hardening cement, plugging king and the like are mixed with the concrete, and the plugging agents, the quick hardening cement, the plugging king and the like are put into the dewatering well pipe, so that the water level rises quickly after dewatering is stopped, no gas and water sealing measures are adopted, and plugging failure is often caused.
Disclosure of Invention
Aiming at the problems that in the prior art, after the construction of a basement bottom plate is completed, a part of dewatering wells still need to be reserved until the closure of a basement backfill and a post-pouring zone is completed, and the plugging failure is easy to occur due to the fact that no air sealing and water sealing measures exist in the traditional plugging method, the utility model provides a rapid plugging device for a deep foundation pit dewatering well.
The utility model provides the following technical scheme: the utility model provides a quick plugging device of deep basal pit dewatering well, includes joint at dewatering well open-ended stagnant water steel sleeve pipe and from the bottom up pour in proper order at bed course, bottom plate at dewatering well top, stagnant water steel sleeve pipe opening is provided with the flange, flange joint has the flange blind plate, the bed course is provided with the heavy groove around stagnant water steel sleeve pipe, the flange is parallel and level with the upper surface of bed course, stagnant water steel sleeve pipe is higher than the outer wall of heavy groove bottom surface part and is provided with the water stop ring, the bottom plate is located the regional post-pouring groove that is provided with at flange blind plate top, the radius of post-pouring groove is greater than the radius of flange.
Preferably, a plugging concrete layer is poured in the post-pouring groove.
Preferably, sand filling layers are further filled in the dewatering well and the water stop steel sleeve.
Preferably, a rubber sealing ring is arranged between the flange and the flange blind plate.
Preferably, the water stop ring has a thickness of 5 a mm a.
Preferably, the height of the sinking groove is 200 mm, and the length of the water stop steel sleeve is 500 mm.
The beneficial effects of the utility model are as follows: the water stop steel sleeve is clamped at the opening of the dewatering well, the flange blind plate is used for blocking the upward path of water flow in the dewatering well, the water stop ring is used for blocking the upward path of water flow outside the water stop steel sleeve, the leakage risk is reduced, and the blocking effect is enhanced; the post-pouring tank is used for realizing that the water-reducing function is still provided after the construction of the basement bottom plate is completed and before the closure of the basement backfill and the post-pouring belt is completed; the sinking groove is arranged on the cushion layer, and the height of the water stop steel sleeve is controlled, so that the effective thickness of the bottom plate at the top of the flange blind plate is ensured after the bottom plate is leveled.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model.
FIG. 2 is a schematic view of an embodiment of the water stop steel sleeve of the present utility model.
Fig. 3 is a schematic diagram of another embodiment of the present utility model.
Reference numerals: 10-dewatering wells, 20-water-stopping steel sleeves, 21-flange blind plates, 22-water-stopping rings, 23-rubber sealing rings, 30-cushion layers, 31-sink grooves, 40-bottom plates, 41-post-pouring grooves, 50-sealing concrete layers and 60-sand filling layers.
Detailed Description
Embodiments of the present utility model will be described in more detail below with reference to the drawings and reference numerals, so that those skilled in the art can practice the present utility model after studying the specification. 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 rapid plugging device for a deep foundation pit dewatering well, as shown in fig. 1-2, which comprises a water-stopping steel sleeve 20 clamped at an opening of the dewatering well 10, a cushion layer 30 and a bottom plate 40 which are sequentially poured at the top of the dewatering well 10 from bottom to top, wherein a flange is arranged at the opening of the water-stopping steel sleeve 20, and a flange blind plate 21 is connected to the flange. The cushion layer 30 and the bottom plate 40 are both concrete structures and are part of the ground structure of the basement. The water-stop steel sleeve 20 is clamped at the opening of the dewatering well 10, a pipe orifice is conveniently closed by a flange blind plate by welding a flange, a path of upward seepage of underground water from the inside of the water-stop steel sleeve 20 is blocked, and a rubber sealing ring 23 is preferably arranged between the flange and the flange blind plate 21; the outer wall of the water stop steel sleeve 20 higher than the bottom surface of the sinking groove 31 is provided with a water stop ring 22, after the bottom plate 40 and the sinking groove 31 are poured together, the water stop ring 22 is buried in concrete, a path of groundwater seepage upwards from a gap at the outer side of the water stop steel sleeve 20 can be blocked, and the thickness of the water stop ring 22 is 5 mm. The area of the bottom plate 40 positioned at the top of the flange blind plate 21 is provided with a post-pouring groove 41, and the radius of the post-pouring groove 41 is larger than that of the flange, so that the flange blind plate can be opened to put a water pump into the dewatering well 10 for dewatering after the pouring of the basement bottom plate 40 is completed.
Because the bottom plate 40 is leveled and the dewatering well 10 is plugged by pouring concrete in the post-pouring groove 41, the cushion layer 30 is provided with the sinking groove 31 surrounding the water stop steel sleeve 20, and the flange is leveled with the upper surface of the cushion layer 30, so that the effective thickness of the bottom plate at the top of the flange blind plate 21 is ensured when the bottom plate is leveled thoroughly by pouring concrete in the post-pouring groove 41. The height of the sinking groove 31 is 200 mm, and the length of the water stop steel sleeve 20 is 500 mm.
During construction, the water-stop steel sleeve 20 welded with the flange can be firstly installed, the flange blind plate 21 is connected with the flange through bolts, then the cushion layer 30 is poured and the sinking groove 31 is formed, and the cushion layer 30 reinforces the water-stop steel sleeve 20; and then pouring the bottom plate 40 and the sinking groove 31, reserving a post-pouring groove 41 on the bottom plate 40, and opening the blind flange 21 to put the water pump into the dewatering well 10 for dewatering when dewatering is needed after the construction of the bottom plate of the basement is completed and before the closure of the post-pouring belt is completed.
Example 2
The utility model provides a rapid plugging device for a deep foundation pit dewatering well, as shown in fig. 3, on the basis of embodiment 1, a plugging concrete layer 50 is poured in a post-pouring groove 41, so that a bottom plate 40 is completely leveled, and the dewatering well 10 is plugged. The strength of the blocked concrete layer 50 should be increased by one step over the concrete strength grade of the bottom plate 40, and a certain proportion of an expanding agent is added to ensure that no cracks occur in the concrete during the hardening stage.
Preferably, the precipitation well 10 and the water-stop steel casing 20 are also filled with a sand filling layer 60.
The foregoing is a description of one or more embodiments of the utility model, which are specific and detailed, but are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. A quick plugging device of deep basal pit dewatering well, its characterized in that: including joint in precipitation well (10) open-ended stagnant water steel sleeve pipe (20) and from the bottom up pour in proper order in bed course (30), bottom plate (40) at precipitation well (10) top, stagnant water steel sleeve pipe (20) opening is provided with the flange, flange joint has flange blind flange (21), bed course (30) are provided with heavy groove (31) around stagnant water steel sleeve pipe (20), the upper surface parallel and level of flange and bed course (30), stagnant water steel sleeve pipe (20) are higher than the outer wall of heavy groove (31) bottom surface part and are provided with sealing ring (22), the region that bottom plate (40) are located flange blind flange (21) top is provided with post-cast groove (41), the radius of post-cast groove (41) is greater than the radius of flange.
2. The rapid plugging device for deep foundation pit dewatering wells according to claim 1, wherein: and a plugging concrete layer (50) is poured in the post-pouring groove (41).
3. The rapid plugging device for deep foundation pit dewatering wells according to claim 1, wherein: and sand filling layers (60) are also filled in the dewatering well (10) and the water-stopping steel sleeve (20).
4. The rapid plugging device for deep foundation pit dewatering wells according to claim 1, wherein: a rubber sealing ring (23) is arranged between the flange and the flange blind plate (21).
5. The rapid plugging device for deep foundation pit dewatering wells according to claim 1, wherein: the thickness of the water stop ring (22) is 5 mm.
6. The rapid plugging device for deep foundation pit dewatering wells according to claim 1, wherein: the height of the sinking groove (31) is 200 mm, and the length of the water stop steel sleeve (20) is 500 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223187808.4U CN219100100U (en) | 2022-11-30 | 2022-11-30 | Quick plugging device of deep basal pit dewatering well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223187808.4U CN219100100U (en) | 2022-11-30 | 2022-11-30 | Quick plugging device of deep basal pit dewatering well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219100100U true CN219100100U (en) | 2023-05-30 |
Family
ID=86455400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223187808.4U Active CN219100100U (en) | 2022-11-30 | 2022-11-30 | Quick plugging device of deep basal pit dewatering well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219100100U (en) |
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2022
- 2022-11-30 CN CN202223187808.4U patent/CN219100100U/en active Active
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