CN215669621U

CN215669621U - High pressure precipitation well plugging device

Info

Publication number: CN215669621U
Application number: CN202121748170.XU
Authority: CN
Inventors: 朱凯; 郑方园; 王宗汉; 季鑫; 郭均杰
Original assignee: Zhejiang Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Current assignee: Zhejiang Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-28
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to a high-pressure dewatering well plugging device which comprises a foundation pit, wherein bottom plate concrete is poured at the top of the foundation pit, well bodies are arranged inside the foundation pit and the bottom plate concrete, steel pipes are arranged outside the well bodies, steel plates are arranged above the outer side walls of the steel pipes, a well cover is arranged at the top of each steel plate, a pressure relief cover plate is arranged inside the well bodies, and a rubber strip is arranged on the outer side wall of each pressure relief cover plate; place the pressure release pipe in the internal portion of well, make the well body form airtight space through pressure release apron and rubber strip, then make the internal portion of well groundwater flow in the outside from the pressure release pipe bottom under the water pressure effect, and then to the internal portion pressure release of well, avoid the water level to continue the come-up, then staff welds the well lid, the pressure release stops after the completion, demolish first section pressure release pipe, and seal the end of pressure release pipe, concrete shutoff is pour at last, through underground water pressure can release like this, when guaranteeing to apply and weld the quality, have very strong operability.

Description

High pressure precipitation well plugging device

Technical Field

The utility model relates to the technical field of building construction, in particular to a high-pressure dewatering well plugging device.

Background

With the development of economy and the advance of urbanization construction in China, construction foundation pits, particularly deep and large foundation pit engineering are increasingly increased, the excavation depth of a plurality of foundation pit engineering is often larger than the natural water level of underground water, precipitation treatment is required during the construction and use of the foundation pits, when the range of the foundation pits is large, a precipitation well is often arranged in the foundation pit to ensure the precipitation effect, precipitation is required to be kept before the construction of a foundation pit bottom plate and the loading of a building meet the anti-floating requirement, the precipitation well needs to penetrate through the building bottom plate, when the load of the building meets the anti-floating requirement, water pumping can be stopped, and at the moment, the well sealing needs to be carried out on the precipitation well in the range of the building bottom plate.

The foundation pit dewatering well is at the shut-in well in-process, and the abundant position of local groundwater often leads to the well lid to weld the degree of difficulty great because of water pressure is great, and the successful application of welding needs to drop into great manpower and material resources.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a high-pressure dewatering well plugging device which can release underground water pressure, ensures welding quality and has the advantage of strong operability.

The technical scheme for realizing the purpose is as follows:

the utility model provides a high-pressure dewatering well plugging device which comprises a foundation pit, wherein bottom plate concrete is poured at the top of the foundation pit, well bodies are arranged inside the foundation pit and the bottom plate concrete, steel pipes are arranged on the outer sides of the well bodies, steel plates are arranged above the outer side walls of the steel pipes, a well cover is arranged at the top of each steel plate, a pressure relief cover plate is arranged inside the well body, rubber strips are arranged on the outer side walls of the pressure relief cover plates, a pressure relief pipe is arranged at the top of each pressure relief cover plate, and the top of each pressure relief pipe penetrates through a concave hole of the well cover.

Preferably, one end of the pressure relief pipe, which is far away from the pressure relief cover plate, is connected with the water faucet. To facilitate control of the flow of groundwater out of the other end of the pressure relief pipe.

Preferably, a connecting port is formed in the upper portion inside the pressure relief pipe. The upper half pressure relief pipe is convenient to be detached.

Preferably, the shrinkage pool department of well lid has placed the seal ring, just the seal ring is hugged closely the lateral wall of pressure release pipe. In order to avoid the pressure relief pipe and the well lid from generating a gap.

Preferably, the steel plate has a flat structure. To avoid the well lid from shaking.

Preferably, the cross section of the well cover is larger than the cross sectional area of the well body. To avoid the well lid falling inside the well body.

Preferably, the pressure relief pipe is of an L-shaped structure. In order to facilitate the diversion of the water circulating through the pressure relief pipe.

The utility model has the beneficial effects that: in the using process, the pressure relief pipe is placed in the well body, the well body forms a closed space through the pressure relief cover plate and the rubber strip, then underground water in the well body flows to the outside from the bottom of the pressure relief pipe under the action of water body pressure, the pressure in the well body is relieved, the water level is prevented from continuously floating upwards, then workers weld the well cover, after welding is completed, the pressure relief is stopped, the upper half pressure relief pipe is dismantled, the end of the pressure relief pipe is sealed, and finally concrete is poured for plugging, so that the underground water pressure can be released, the welding quality is guaranteed, and meanwhile, the operation performance is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the pressure relief cover plate of FIG. 1 according to the present invention;

description of reference numerals:

1. bottom plate concrete; 2. a steel pipe; 3. a pressure relief cover plate; 4. a well body; 5. a well cover; 6. a connecting port; 7. a water stop ring; 8. a steel plate; 9. a pressure relief pipe; 10. a rubber strip; 11. and (6) foundation pit.

Detailed Description

The utility model is further described with reference to the following figures and specific examples.

Referring to fig. 1 to 2, the utility model provides a high-pressure dewatering well plugging device, which comprises a foundation pit 11, bottom plate concrete 1 is poured at the top of the foundation pit 11, well bodies 4 are arranged inside the foundation pit 11 and the bottom plate concrete 1, a steel pipe 2 is installed on the outer side of a connecting pipe of each well body 4, a steel plate 8 is welded above the outer side wall of each steel pipe 2, a well cover 5 is welded at the top of each steel plate 8, a pressure relief cover plate 3 is placed inside each well body 4, the outer side wall of each pressure relief cover plate 3 is sealed with the inner side wall of each well body 4 through a rubber strip 10, a pressure relief pipe 9 is installed at the top of each pressure relief cover plate 3 through a bolt, and the top of each pressure relief pipe 9 penetrates through a concave hole of each well cover 5.

In this example, place pressure release pipe 9 inside the well body 4, make the well body 4 form airtight space through pressure release apron 3 and rubber strip 10, then make the inside groundwater of the well body 4 flow into the outside from pressure release pipe 9 bottom under the water pressure effect, and then to the inside pressure release of the well body 4, avoid the water level to continue the come-up, then staff welding well lid 5, after the welding is accomplished, stop the pressure release, demolish first section pressure release pipe 9, and seal the end of pressure release pipe 9, pour the concrete shutoff at last.

Further, as shown in fig. 1, one end of the pressure relief pipe 9, which is far away from the pressure relief cover plate 3, is connected to a faucet, and the flow of the groundwater flowing out of the other end of the pressure relief pipe 9 can be controlled by rotating the faucet.

Furthermore, as shown in fig. 1, a connection port 6 is provided above the inside of the pressure relief pipe 9, the upper half pressure relief pipe 9 can be screwed, and then the lower half pressure relief pipe 9 and the upper half pressure relief pipe 9 are separated through the connection port 6, so that the upper half pressure relief pipe 9 can be conveniently removed.

Further, as shown in fig. 1, a water stop ring 7 is placed at the concave hole of the well lid 5, the water stop ring 7 is tightly attached to the outer side wall of the pressure relief pipe 9, and the pressure relief pipe 9 and the well lid 5 can be prevented from generating a gap through the water stop ring 7.

Further, as shown in fig. 1, the steel plate 8 is of a flat structure, so that the manhole cover 5 is prevented from shaking when placed above the steel plate 8.

Further, as shown in fig. 1, the cross section of the well lid 5 is larger than the cross sectional area of the well body 4, by which the well lid 5 can be prevented from falling into the inside of the well body 4.

Further, as shown in fig. 1, the pressure relief pipe 9 has an L-shaped structure, and thus the water flowing through the pressure relief pipe 9 can be diverted.

The working principle of the utility model is as follows: in the using process of the utility model, the periphery of the well body 4 is continuously lowered through a water pump, then the pressure relief pipe 9 is placed in the well body 4, the pressure relief cover plate 3 is tightly jointed with the inner side wall of the well body 4 through the rubber strip 10, the pressure relief cover plate 3 and the well body 4 form a closed space, so that underground water in the well body 4 flows into the outside from the bottom of the pressure relief pipe 9 under the action of water body pressure, the pressure is relieved to the inside of the well body 4, the water level is prevented from continuously floating, then a worker welds the well sealing cover 5, the pressure relief is stopped after the completion, the pressure relief pipe 9 at the upper half section is removed, the end of the pressure relief pipe 9 is sealed, and finally concrete plugging is poured.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the utility model is to be determined by the appended claims.

Claims

1. The utility model provides a high pressure precipitation well plugging device, a serial communication port, including the foundation ditch, bottom plate concrete is pour at the top of foundation ditch, the foundation ditch with the well body is all installed to the inside of bottom plate concrete, the steel pipe is installed in the outside of the well body, the steel sheet is installed to the lateral wall top of steel pipe, the well lid is installed at the top of steel sheet, the internally mounted of the well body has the pressure release apron, the rubber strip is installed to the lateral wall of pressure release apron, the pressure release pipe is installed at the top of pressure release apron, the pressure release pipe top runs through the shrinkage pool of well lid.

2. The plugging device for the high-pressure dewatering well according to claim 1, wherein one end of the pressure relief pipe, which is far away from the pressure relief cover plate, is connected with a water tap.

3. The plugging device for the high-pressure dewatering well according to claim 1, wherein a connection port is formed above the inside of the pressure relief pipe.

4. The plugging device for the high-pressure dewatering well according to claim 1, wherein a water stop ring is placed at a concave hole of the well lid, and the water stop ring is tightly attached to the outer side wall of the pressure relief pipe.

5. The plugging device for a high pressure dewatering well according to claim 1, wherein the steel plate is a flat structure.

6. The plugging device for the high-pressure dewatering well as claimed in claim 1, wherein the cross section of the well lid is larger than the cross sectional area of the well body.

7. The plugging device for a high-pressure dewatering well according to claim 1, wherein the pressure relief pipe is of an L-shaped structure.