CN211713997U

CN211713997U - Novel plugging device for dewatering well

Info

Publication number: CN211713997U
Application number: CN201922467506.4U
Authority: CN
Inventors: 王参宝; 王亚芝; 赵彦改; 姚少利; 张会强; 崔贝贝
Original assignee: Hebei No2 Building Engineering Co ltd
Current assignee: Hebei No2 Building Engineering Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-20
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a novel plugging device for dewatering well, which comprises a round steel cylinder, a grouting pipe and a water stop ring welded on the outer side of the middle part of the round steel cylinder, wherein a pipe ancient and a pipe ancient matched plug are arranged inside the round steel cylinder, the pipe ancient and the inner wall of the round steel cylinder are fully welded, the pipe plug is provided with a grouting pipe hole and a screwed overflow pipe hole, a bolt is matched with the overflow pipe hole for use, the grouting pipe extends into the round steel cylinder from the grouting pipe hole to be close to the bottom, a valve for controlling the grouting pipe to be opened or closed is arranged on the grouting pipe above the pipe plug, the top of the grouting pipe is connected with a self-priming pump through a nylon belt with a clamp, a drain pipe is arranged on the self-priming pump, a plurality of anchoring ribs are welded on the inner wall of the round steel cylinder except for the contact with the pipe ancient, the pipe ancient and the pipe plug replace the conventional steel plate to plug the dewatering well, simple and fast, save the labour, the later stage does not have the seepage hidden danger, has reduced construction cost.

Description

Novel plugging device for dewatering well

Technical Field

The utility model relates to a building engineering field specifically indicates a novel precipitation well shutoff device.

Background

In the engineering construction, deep foundation pit dewatering method modes are more and more diversified, and a large raft foundation is dewatered by embedding a steel cylinder on a raft, so that the water gushing phenomenon at the bottom of the raft is favorably reduced, and the water pressure is controlled. However, the problem of difficult plugging is encountered when the dewatering well is plugged in the later stage, the steel plate is conventionally adopted for welding and plugging in the steel cylinder, and as the water pump needs to be removed when the steel plate is welded, the water level rises quickly, so that the water level rises to the steel plate when the steel plate is not welded, the welding cannot be carried out, the plugging fails, the inner side of the steel cylinder is not reliably connected with the concrete, the compactness of the poured concrete is insufficient, and the water seepage phenomenon is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a novel precipitation well shutoff device, adopts pipe ancient and plug to replace conventional steel sheet to carry out the shutoff precipitation well, can portably swift carry out the shutoff.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a novel precipitation well shutoff device, includes circular steel section of thick bamboo, slip casting pipe and welding the seal ring in the circular steel section of thick bamboo middle part outside the inside pipe ancient of being provided with of circular steel section of thick bamboo and the supporting plug that uses with the pipe ancient, pipe ancient and circular steel section of thick bamboo inner wall full weld seted up slip casting tube hole and screwed overfall tube hole on the plug, the bolt with the supporting use in overfall tube hole, the slip casting pipe stretches into the position that circular steel section of thick bamboo is close to the bottom from the slip casting tube hole, the vertical welding of slip casting pipe is in slip casting tube hole department be provided with the control slip casting pipe on the slip casting pipe of plug top and open or closed valve the self priming pump is connected through the nylon strip of taking the clamp in the slip casting pipe top be provided with the drain pipe on the self priming pump circular steel section of thick bamboo inner wall except that with the local welding a plurality of anchor muscle of pipe ancient contact.

The utility model discloses technical scheme's further improvement lies in: the upper part of the grouting pipe is parallel and level with the round steel cylinder, and the distance between the lower part of the grouting pipe and the upper part of the bottom of the round steel cylinder is 100 mm.

The utility model discloses technical scheme's further improvement lies in: the tube base is arranged 250mm away from the top of the round steel cylinder.

The utility model discloses technical scheme's further improvement lies in: and a valve is arranged on the grouting pipe 50mm away from the upper part of the plug.

The utility model discloses technical scheme's further improvement lies in: the valve can adopt a ball valve.

The utility model discloses technical scheme's further improvement lies in: the anchoring ribs are triangular anchoring ribs.

Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:

1. the utility model discloses a tub ancient times and plug replace conventional steel sheet to carry out the shutoff precipitation well, and the construction shutoff is simple and efficient, saves the labour, and the later stage does not have the seepage hidden danger, has reduced construction cost.

2. The utility model discloses with pipe ancient and plug setting inside the circular steel cylinder and apart from circular steel cylinder top 250mm department, pour the thin stone concrete of high inflation such as with raft board in the upper portion after the shutoff is accomplished, can protect pipe ancient and plug, long service life, and make precipitation well and concrete change and become a whole, increase the steadiness.

3. The utility model discloses the inner wall remove with the local a plurality of triangle-shaped's of welding anchor muscle of tub ancient contact, can strengthen the anchor intensity with the concrete, increase the closely knit nature.

Drawings

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

FIG. 2 is a partial enlarged view of part A of the present invention;

wherein, 1, circular steel cylinder, 2, slip casting pipe, 3, seal ring, 4, manage ancient times, 5, plug, 6, slip casting pipe hole, 7, excessive thick liquid pipe hole, 8, bolt, 9, valve, 10, self priming pump, 11, drain pipe, 12, anchor muscle.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

as shown in figures 1 and 2, the novel dewatering well plugging device adopts the pipe 4 and the pipe plug 5 to replace a conventional steel plate to plug a dewatering well, construction plugging is simple, convenient and quick, labor force is saved, leakage hidden danger does not exist in the later stage, and construction cost is reduced. The novel dewatering well plugging device comprises a circular steel cylinder 1 and a grouting pipe 2, a water stop ring 3 is welded on the outer side of the middle of the circular steel cylinder 1, a pipe leg 4 matched with the circular steel cylinder 1 in size is fully welded on the position 250mm away from the top of the circular steel cylinder 1 inside the circular steel cylinder 1, a matched plug 5 is screwed on the pipe leg 4, a grouting pipe hole 6 and a screwed overflow pipe hole 7 are formed in the plug 5, a plurality of triangular structure anchoring ribs 12 are welded on the periphery of the inner wall of the circular steel cylinder 1 except for the position contacted with the pipe leg 4, the anchoring strength of concrete can be enhanced, the compactness is increased, the grouting pipe 2 extends into the circular steel cylinder 1 from the grouting pipe hole 6 and is close to the position 100mm above the bottom, the upper part of the grouting pipe 2 is flush with the circular steel cylinder 1, a valve 9 for controlling the grouting pipe 2 to be opened or closed is arranged on the position 50mm above the grouting pipe 2 above the plug 5, and the valve 9 can adopt a ball valve, the top of the grouting pipe 2 is connected with a self-sucking pump 10 through a nylon belt with a hoop, a drain pipe 11 is arranged on the self-sucking pump 10, a valve 9 is opened, precipitation is carried out through the self-sucking pump 10, water of a precipitation well can be used as construction water through the drain pipe 11, the self-sucking pump 10 is closed when the water level drops to a preset height, the valve 9 is closed at the same time, the nylon belt is untied, the self-sucking pump 10 is withdrawn, the valve 9 is opened to start grouting through the grouting pipe 2, a grout overflow pipe hole 7 is observed, when grout overflows from the grout overflow pipe hole 7 to be compact, the grout overflow pipe hole 7 is plugged and fully welded by adopting a matched bolt 8 after being screwed, the valve 9 is closed, the grouting pipe 2 above the valve 9 is cut, plugging is finished, expanded fine aggregate concrete with the same height as that of a raft is poured on the upper part of the plug 5, the pipe 4 and the plug 5 can be protected, the service life is long, and, the stability is increased.

Claims

1. The utility model provides a novel precipitation well shutoff device, includes circular steel cylinder (1), slip casting pipe (2) and welding stagnant water ring (3) in the circular steel cylinder (1) middle part outside, its characterized in that: the pipe ancient (4) and the pipe plug (5) matched with the pipe ancient (4) are arranged inside the round steel cylinder (1), the pipe ancient (4) is fully welded with the inner wall of the round steel cylinder (1), the pipe plug (5) is provided with a grouting pipe hole (6) and a screwed grout overflow pipe hole (7), a bolt (8) is matched with the grout overflow pipe hole (7) for use, the grouting pipe (2) extends into the round steel cylinder (1) from the grouting pipe hole (6) to be close to the bottom, the grouting pipe (2) is vertically welded at the grouting pipe hole (6), a valve (9) for controlling the grouting pipe (2) to be opened or closed is arranged on the grouting pipe (2) above the pipe plug (5), the top of the grouting pipe (2) is connected with a self-priming pump (10) through a nylon belt with a clamp, and a drain pipe (11) is arranged on the self-priming pump (10), and a plurality of anchoring ribs (12) are welded on the inner wall of the round steel cylinder (1) except the contact part with the tube base (4).

2. The novel plugging device for dewatering well as claimed in claim 1, wherein: the upper part of the grouting pipe (2) is parallel and level with the round steel cylinder (1), and the lower part of the grouting pipe is 100mm away from the upper part of the bottom of the round steel cylinder (1).

3. The novel plugging device for dewatering well as claimed in claim 1, wherein: the tube leg (4) is arranged 250mm away from the top of the round steel cylinder (1).

4. The novel plugging device for dewatering well as claimed in claim 1, wherein: and a valve (9) is arranged on the grouting pipe (2) 50mm away from the upper part of the pipe plug (5).

5. The novel plugging device for dewatering well as claimed in claim 4, wherein: the valve (9) can be a ball valve.

6. The novel plugging device for dewatering well as claimed in claim 1, wherein: the anchoring ribs (12) adopt triangular structure anchoring ribs.