CN219118205U

CN219118205U - Water stopping sleeve for plugging raft foundation dewatering well

Info

Publication number: CN219118205U
Application number: CN202220454293.0U
Authority: CN
Inventors: 黄瑞雄; 李绍权; 陈辉豪
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2023-06-02
Anticipated expiration: 2032-03-02

Abstract

The utility model relates to a water stop sleeve for plugging a raft foundation dewatering well, which comprises a steel pipe main body, wherein the steel pipe main body is vertically inserted into the dewatering well, a first water stop ring and a second water stop ring are arranged on the outer wall surface of the steel pipe main body, the first water stop ring is positioned in the middle of the steel pipe main body, the second water stop ring is positioned below the first water stop ring, a third water stop ring is arranged on the inner wall surface of the steel pipe main body, and the third water stop ring and the first water stop ring are positioned at the same height. According to the utility model, the first water stop ring and the second water stop ring are arranged on the outer side of the steel pipe main body, so that a water stop guarantee is added at the cushion layer, and the third water stop ring is added on the inner wall of the steel pipe main body, so that a water stop guarantee is added on the inner side of the pipe, and the blocking and water stop effect of the water stop sleeve is enhanced.

Description

Water stopping sleeve for plugging raft foundation dewatering well

Technical Field

The utility model relates to the field of foundation pit construction, in particular to a water stop sleeve for plugging a raft foundation dewatering well.

Background

In the foundation ditch of construction, need set up the precipitation well, because excavation foundation ditch in-process, groundwater level is higher than the excavation bottom surface, and in groundwater can constantly permeate the hole, and precipitation well can realize precipitation in the foundation ditch, guarantees that the foundation ditch is under the construction of dry condition to prevent the unstable scheduling problem of side slope. Particularly in the foundation pit with larger area and high water level, the soil is powdery mucky soil, and good precipitation is extremely important, for example, in a certain comprehensive building engineering, the area of the foundation pit reaches 2 ten thousand square meters, and twenty-four precipitation wells are required to be arranged.

On the other hand, a water stopping sleeve is also arranged in the dewatering well and is used for plugging the well point of the pipe well to prevent groundwater in the dewatering well from seeping out and influencing the dewatering effect of the foundation pit; the existing water-stop sleeve is provided with a water-stop ring only on the outer side of the steel pipe main body, and the inner wall of the steel pipe main body is smooth, so that the inner wall of the water-stop sleeve has no water-stop effect.

Therefore, in order to better ensure the quality of the plugging of the pipe well, the water-stop sleeve structure needs to be improved, and the leakage problem is solved.

Disclosure of Invention

The utility model provides a water-stop sleeve for plugging a raft foundation dewatering well, which aims to solve the problems that the existing water-stop sleeve is easy to leak and has an unsatisfactory water-stop effect.

The technical scheme of the utility model is as follows:

the utility model provides a stagnant water sleeve pipe for raft foundation precipitation well shutoff, includes the steel pipe main part, the steel pipe main part inserts the precipitation well inside perpendicularly, the outer wall surface of steel pipe main part is equipped with first water stop ring and second water stop ring, first water stop ring is located the middle part of steel pipe main part, the second water stop ring is located the below of first water stop ring, the inner wall surface of steel pipe main part is equipped with the third water stop ring, the third water stop ring with first water stop ring is located same height.

The utility model according to the above scheme is characterized in that the third water stop ring and the middle part of the raft foundation are positioned at the same height.

The utility model according to the above-mentioned aspect is characterized in that the width of the third water stop ring is smaller than the width of the first water stop ring.

Preferably, the width of the third water stop ring is not less than 50 mm.

The utility model according to the above-mentioned aspect is characterized in that the width of the first water stop ring is not less than 100 mm.

The utility model according to the above scheme is characterized in that the second water stop ring and the middle part of the cushion layer of the raft foundation are positioned at the same height.

The utility model according to the above-mentioned aspect is characterized in that the width of the second water stop ring is not less than 100 mm.

The utility model according to the above-mentioned aspect is characterized in that the width of the first water stop ring and the width of the second water stop ring are equal.

The utility model according to the above aspect is characterized in that the outer diameter of the steel pipe body is 100 mm smaller than the width of the dewatering well.

The utility model according to the above scheme is characterized in that the elevation of the pipe orifice of the steel pipe body is 100 mm lower than the top plate of the raft foundation.

The utility model according to the above scheme is characterized in that the length of the bottom end of the steel pipe main body embedded in the dewatering well is 100 mm.

The utility model according to the scheme has the beneficial effects that:

according to the utility model, the first water stop ring and the second water stop ring are arranged on the outer side of the steel pipe main body, so that a water stop guarantee is added at the cushion layer, the third water stop ring is added on the inner wall of the steel pipe main body, and the water stop guarantee is added on the inner side of the pipe, so that the blocking water stop effect of the water stop sleeve is enhanced, the quality of the foundation pit bottom plate is guaranteed, the maintenance cost caused by poor water stop in the later period is reduced, and the construction efficiency and engineering quality are also greatly improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view taken along A-A in fig. 1.

In the figure, 1, a steel pipe main body; 2. a first water stop ring; 3. a second water stop ring; 4. and a third water stop ring.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present.

The directions or positions indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are directions or positions based on the directions or positions shown in the drawings, are for convenience of description only, and are not to be construed as limiting the present technical solution. The meaning of "a number" is two or more, unless specifically defined otherwise.

As shown in fig. 1 and 2, a water stop sleeve for plugging a raft foundation dewatering well comprises a steel pipe main body 1, wherein the steel pipe main body 1 is vertically inserted into the dewatering well, a first water stop ring 2 and a second water stop ring 3 are arranged on the outer wall surface of the steel pipe main body 1, the first water stop ring 2 is positioned in the middle of the steel pipe main body 1, and the second water stop ring 3 is positioned below the first water stop ring 2.

In this embodiment, the inner wall surface of the steel pipe body 1 is provided with a third water stop ring 4, and the third water stop ring 4 and the first water stop ring 2 are located at the same height. The inner wall of the steel pipe main body 1 is added with a third water stop ring 4, so that a water stop guarantee is additionally arranged on the inner side of the pipe.

Therefore, compared with the prior art, the water stop sleeve provided by the utility model is additionally provided with the second water stop ring 3 and the third water stop ring 4, so that the blocking and water stop effect of the water stop sleeve is enhanced, the quality of the foundation pit bottom plate is further ensured, the maintenance cost caused by poor water stop in the later period is reduced, and the construction efficiency and engineering quality are also greatly improved.

In the embodiment, the third water stop ring 4 and the middle part of the raft foundation are positioned at the same height, so that the middle positions of the first water stop ring 2, the third water stop ring 4 and the raft foundation are positioned on the same horizontal plane; the width of the third water stop ring 4 is smaller than that of the first water stop ring 2, the inside and outside of the sleeve are provided with water stop effects, and the two water stop rings are firmly welded with the steel pipe main body 1.

In the utility model, the steel pipe main body is a galvanized steel pipe; the first water stop ring, the second water stop ring and the third water stop ring are galvanized steel plates.

In a preferred embodiment, the width of the third water stop ring 4 is not less than 50 mm, the width of the first water stop ring 2 is not less than 100 mm, and it is satisfied that the width of the third water stop ring 4 is less than the width of the first water stop ring 2.

In this embodiment, the middle parts of the second water stop ring 3 and the cushion layer of the raft foundation are located at the same height, that is, the second water stop ring 3 is ensured to be embedded into the cushion layer, which is not only beneficial to enhancing the water stop effect of the outer side of the pipe, but also capable of enhancing the connection firmness of the steel pipe main body 1 and the raft foundation.

In a preferred embodiment, the width of the second water stop ring 3 is equal to the width of the first water stop ring 2, and the width of the second water stop ring 3 is not less than 100 mm.

In the present embodiment, the outer diameter of the steel pipe body 1 is 100 mm smaller than the width of the dewatering well; the elevation of the pipe orifice of the steel pipe main body 1 is 100 mm lower than that of the top plate of the raft foundation; the bottom end of the steel pipe main body 1 is embedded into the dewatering well with the length of 100 mm, so that the steel pipe main body 1 is firmly fixed in the dewatering well, and the dewatering effect of the dewatering well is better ensured.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and 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

1. The utility model provides a stagnant water sleeve pipe for raft foundation precipitation well shutoff, includes the steel pipe main part, the steel pipe main part inserts the precipitation well inside perpendicularly, its characterized in that, the external diameter of steel pipe main part is than the width of precipitation well is little 100 millimeters, the outer wall surface of steel pipe main part is equipped with first water stop ring and second water stop ring, first water stop ring is located the middle part of steel pipe main part, the width of first water stop ring is not less than 100 millimeters, the second water stop ring is located the below of first water stop ring, the inner wall surface of steel pipe main part is equipped with the third water stop ring, the third water stop ring with first water stop ring is located same height just the width of third water stop ring is less than the width of first water stop ring.

2. A water stop sleeve for plugging a precipitation well on a raft foundation according to claim 1, wherein said third water stop ring is located at the same height as the middle part of the raft foundation.

3. A water stop sleeve for plugging a raft foundation dewatering well as claimed in claim 1, wherein the width of said third water stop ring is not less than 50 mm.

4. A water stop sleeve for plugging a precipitation well on a raft foundation according to claim 1, wherein the second water stop ring is located at the same height as the middle part of the mat layer of the raft foundation.

5. A water stop sleeve for plugging a raft foundation dewatering well according to claim 1, wherein the width of said first water stop ring is equal to the width of said second water stop ring.

6. A water stop sleeve for plugging a precipitation well on a raft foundation according to claim 1, wherein the elevation of the orifice of said steel pipe body is 100 mm lower than the top plate of the raft foundation.

7. A water stop sleeve for plugging a raft foundation dewatering well according to claim 1, wherein the bottom end of said steel pipe body is embedded into said dewatering well for a length of 100 mm.