CN211849527U - High water pressure drop well combination plugging device - Google Patents
High water pressure drop well combination plugging device Download PDFInfo
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- CN211849527U CN211849527U CN201922069880.9U CN201922069880U CN211849527U CN 211849527 U CN211849527 U CN 211849527U CN 201922069880 U CN201922069880 U CN 201922069880U CN 211849527 U CN211849527 U CN 211849527U
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Abstract
A combined plugging device for a high-water-pressure-drop well comprises a downcomer well, a waterproof casing, an upper water stop ring, a lower water stop ring and a plug, wherein the waterproof casing is sleeved on the top of the downcomer well, so that the upper end of the waterproof casing is higher than a foundation pit soil body, the lower water stop ring is in contact with the foundation pit soil body, the upper water stop ring is fixedly connected with the waterproof casing, and the plug is fixed in the middle of the upper water stop ring; the utility model has simple working procedures, saves labor and time, increases the stability of the connection between the concrete poured in the square groove and the basement bottom plate, and has good anti-seepage effect; the welding of the combined steel plate, the mechanical plugging of the pipe plug and the pipe head scientifically and effectively solve the problem of secondary water leakage caused by the incompact vibration or insufficient maintenance of the micro-expansive concrete, and become a second defense line for solving the leakage of the underground structure.
Description
Technical Field
The utility model relates to a building construction equipment, more specifically the utility model discloses mainly relate to a high water pressure drop well plugging device.
Background
In recent years, with the rapid development of modern buildings, more and more buildings with basements are built on high-rise buildings, super high-rise buildings and main buildings, and the existing dewatering wells have to be plugged in advance when the underground structures and main bodies are constructed and backfilled. The traditional method is that a waterproof steel sleeve pipe with a water stop ring on the outer side is additionally arranged on a precipitation well, micro-expansion fine-stone concrete with one grade higher than a bottom plate is used in the precipitation well, the filling height in the well is 3m lower than a pipe opening, and the rest part is poured simultaneously when the bottom plate is to be poured. According to the construction method, in the building construction process, if vibration is not compact, when the water level rises, the underground water pressure is increased, the water leakage of the bottom plate is caused, the construction periods of basement house subsoil backfilling, underground structure surface layer construction, decoration and fitment construction and the like are prolonged, the finished ground decoration structure surface layer is bulged, cracked and other quality hidden dangers are caused, the construction period is prolonged, the water leakage treatment difficulty is increased, the profits of the engineering are reduced, and the quality and safety hidden dangers are left for the engineering.
Disclosure of Invention
The utility model discloses a solve the technical problem who exists among the prior art and provide a high water pressure drop well combination plugging device for solve the above problem that exists among the prior art.
The combined plugging device for the high-water-pressure-drop well comprises a downcomer well, a waterproof casing, an upper water stop ring, a lower water stop ring and a plug, wherein the waterproof casing is sleeved into the top of the downcomer well, so that the upper end of the waterproof casing is higher than a foundation ditch soil body, the lower water stop ring is in contact with the foundation ditch soil body, the upper water stop ring is fixedly connected with the waterproof casing, and the plug is fixed in the middle of the upper water stop ring.
A plain concrete cushion layer is arranged on the upper portion of the lower water stop ring, a waterproof material is arranged on the upper portion of the plain concrete cushion layer, and a waterproof protective layer is arranged on the upper portion of the waterproof material; wherein the waterproof material is along the waterproof sleeve and is flush with the bottom of the upper water stop ring.
The precipitation tube well is provided with building stones, a steel tray, hard fine stone concrete and micro-expansion concrete from bottom to top in sequence.
The upper water stop ring and the lower water stop ring are both square steel plates with holes in the middle.
The pipe plug is connected with a pipe plug steel plate through threads, and the pipe plug steel plate is welded at the opening of the upper stop water ring.
The upper water stop ring and the lower water stop ring are both 150mm thick steel plates with the width of 8mm, the particle size of the building stones is 10-30mm, and the waterproof material adopts a commercially available common waterproof coiled material.
The utility model has the advantages that:
1. by adopting the high-water-pressure-drop well machinery and welding combined rapid plugging device, the technical problem that the water well with water pressure drop is difficult to plug before the underground water level falls back after the main body construction is finished is effectively solved.
2. The waterproof casing pipe with the inner ring and the outer ring with the thickness of 8mm, and the welding plugging of the inner ring opening effectively reduce the leakage probability of the pipe well.
3. The welding of the combined steel plate, the mechanical plugging of the pipe plug and the pipe head scientifically and effectively solve the problem of secondary water leakage caused by the incompact vibration or insufficient maintenance of the micro-expansive concrete, and become a second defense line for solving the leakage of the underground structure.
4. The working procedure is simple, labor and time are saved, the stability of the connection between the concrete poured in the square soil groove and the basement bottom plate is improved, the anti-seepage effect is good, and the practicability is good.
Drawings
Fig. 1 is a general schematic diagram of the present invention;
FIG. 2 is a schematic view of a plug structure;
in the figure: 1-later stage pouring concrete, 2-plug, 3-waterproof sleeve, 4-secondary welding seam, 5-upper water stop ring, 6-waterproof material, 7-plain concrete cushion layer, 8-lower water stop ring, 9-double ring waterproof sleeve, 10-micro expansion concrete, 11-dry hard fine stone concrete, 12-building stone, 13-steel tray and 14-waterproof protective layer.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is made to the following examples, which are set forth in the accompanying drawings and the description:
referring to fig. 1-2, a combined plugging device for a high water pressure drop well comprises a downcomer well 9, a waterproof casing 3, an upper water stop ring 5, a lower water stop ring 8 and a plug 2, wherein the waterproof casing 3 is sleeved on the top of the downcomer well 9, so that the upper end of the waterproof casing 3 is higher than a foundation pit soil body, the lower water stop ring 8 is in contact with the foundation pit soil body, the upper water stop ring 5 is fixedly connected with the waterproof casing 3, and the plug 2 is fixed in the middle of the upper water stop ring 5.
A plain concrete cushion layer 7 is arranged on the upper portion of the lower water stop ring 8, a waterproof material 6 is arranged on the upper portion of the plain concrete cushion layer 7, and a waterproof protective layer 14 is arranged on the upper portion of the waterproof material 6; wherein, the waterproof material 6 is along the waterproof sleeve 3 and is flush with the bottom of the upper water stop ring 5.
The downcast pipe well 9 is sequentially provided with building stones 12, steel trays 13, hard fine aggregate concrete 11 and micro-expansion concrete 10 from bottom to top.
The upper water stop ring 5 and the lower water stop ring 8 are both square steel plates with holes in the middle.
The pipe plug 2 is connected with a pipe plug steel plate through threads, and the pipe plug steel plate is welded at the opening of the upper water stop ring 5.
The upper water stop ring 5 and the lower water stop ring 8 are both 150mm wide and 8mm thick steel plates, the particle size of the building stones 12 is 10-30mm, and the waterproof material 6 is a commercially available common waterproof coiled material.
The construction method of the plugging device for the high-water-pressure dewatering well comprises the following steps:
1. when the earthwork is dug to the foundation trench, the waterproof casing 3 is sleeved into the downcomer well 9, and then the lower water stop ring 8 is in stable contact with the foundation trench soil body;
2. pouring a plain concrete cushion layer 7 on the foundation trench;
3. when the concrete cushion layer 7 meets the construction requirement of the waterproof coating 6, constructing the waterproof material 6 on the surface layer of the plain concrete cushion layer 7, and constructing the waterproof material 6 to the bottom of the upper water stop ring 5;
4. after the waterproof coating 6 is qualified, constructing a waterproof protective layer 14;
5. sequentially filling the building stones 12 into the downcomer well 9, then placing the downcomer well into a steel tray 13 with the height of 3m, and then backfilling dry and hard fine aggregate concrete 11 and C30P6 micro-expansion concrete 10;
6. an 8mm thick steel plate (the diameter is less than the inner diameter of the waterproof sleeve 3 by 5mm) of a galvanized screwed plug with the outer diameter of 85mm is welded in the center of the steel plate of the upper water stop ring 5, and is welded with the flat vertical surface of the inner ring of the original waterproof sleeve 3, the standard of a welding line is a second-level welding line, namely a second-level welding line 4, and finally a combined steel plate is formed;
8. after the combined steel plate is welded, the self-priming pump drain pipe is pulled out, and the screwed plug 2 is mechanically plugged by a screw head wound with waterproof hemp. (the drawing of the self-priming pump drain pipe means that the project is completed, when the precipitation is stopped, the water pressure of the post-cast strip part is larger, and when plugging is carried out, the self-priming pump is needed for auxiliary drainage)
9. And finally, finishing the later concrete pouring 1.
Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, which is within the scope of the present invention.
Claims (6)
1. The utility model provides a high water pressure drop well combination plugging device, its characterized in that, is including downcomer well (9), waterproof sleeve pipe (3), go up water stop ring (5), lower water stop ring (8) and plug (2), waterproof sleeve pipe (3) embolia downcomer well (9) top for waterproof sleeve pipe (3) upper end is higher than the foundation ditch soil body, lower water stop ring (8) and foundation ditch soil body contact, go up water stop ring (5) and waterproof sleeve pipe (3) fixed connection, it is fixed to go up water stop ring (5) middle part plug (2).
2. The combined plugging device for water wells with high water pressure drop of claim 1, wherein a plain concrete cushion layer (7) is arranged on the upper part of the lower water stop ring (8), a waterproof material (6) is arranged on the upper part of the plain concrete cushion layer (7), and a waterproof protective layer (14) is arranged on the upper part of the waterproof material (6); wherein the waterproof material (6) is along the waterproof sleeve (3) and is flush with the bottom of the upper water stop ring (5).
3. The combined plugging device for high water pressure drop wells according to claim 2, wherein the downcomer well (9) is provided with construction stones (12), steel trays (13), hard fine stone concrete (11) and micro-expansion concrete (10) from bottom to top in sequence.
4. The combined plugging device for high water pressure drop wells according to claim 1, wherein the upper water stop ring (5) and the lower water stop ring (8) are both square steel plates with holes in the middle.
5. The combined plugging device for high water pressure drop well according to claim 1, wherein said pipe plug (2) is connected with a pipe plug steel plate through screw threads, and said pipe plug steel plate is welded at the opening of said upper water stop ring (5).
6. The combined plugging device for the water well with high water pressure drop of claim 3, wherein the upper water stop ring (5) and the lower water stop ring (8) are both 150mm thick steel plates with width of 8mm, the particle size of the building stones (12) is 10-30mm, and the waterproof material (6) is a common waterproof coiled material sold in the market.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922069880.9U CN211849527U (en) | 2019-11-27 | 2019-11-27 | High water pressure drop well combination plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922069880.9U CN211849527U (en) | 2019-11-27 | 2019-11-27 | High water pressure drop well combination plugging device |
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| CN211849527U true CN211849527U (en) | 2020-11-03 |
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| CN201922069880.9U Active CN211849527U (en) | 2019-11-27 | 2019-11-27 | High water pressure drop well combination plugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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