CN218911599U

CN218911599U - Water supply pipe protection structure

Info

Publication number: CN218911599U
Application number: CN202222546392.4U
Authority: CN
Inventors: 李学武; 向刘杰; 石广; 顾伟康; 李彬彬; 杜倩
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-04-25
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a water supply pipe protection structure, and relates to the field of municipal drainage. The sewage treatment device comprises a newly-built sewage pipe or a converging pipe and a water supply pipe, wherein a welded steel pipe is sleeved on the water supply pipe; a gap between the two ends of the welded steel pipe and the water supply pipe is provided with a water-swelling rubber water stop belt, and fine sand is filled between the welded steel pipe and the water supply pipe. When the water supply pipe is constructed before the sewage pipe, the sewage pipe is laid on the water supply pipe, so as to avoid sewage leakage and pollution to domestic water supply.

Description

Water supply pipe protection structure

Technical Field

The utility model relates to the field of municipal drainage, in particular to a water supply pipe protection structure.

Background

In recent years, the Yangtze river basin is in keeping with the new era of Chinese characteristic societies as guidance, and is in keeping with the 'common great protection, no great development', ecological priority and green development concept, and the river-treating industry development is actively promoted; the river water is polluted and is shown in the water, the root is on the shore, the core is in the pipe network, and the improvement of the drainage pipe network is particularly important.

When the drainage pipe network is remedied, due to the limitation of construction time sequence and the burying depth of the upstream drainage pipe network and the downstream drainage pipe network, the situation that a newly built sewage pipe is laid above an established life water supply pipe often exists, if the sewage pipe leaks, the life water supply pipe below the sewage pipe is at risk of being polluted, and at the moment, the life water supply pipe needs to be protected; when the sewage pipe is built behind a living water supply pipe, the water supply pipe is already in water supply operation, and then the whole water supply pipe is dug out for protection after water interruption, so that the investment is large, the influence on the living of residents is large, and the construction is inconvenient.

Therefore, the development of a water supply pipe protection structure with smaller excavation, no need of water interruption and simple and convenient construction is necessary.

Disclosure of Invention

The utility model aims to overcome the defects of the background technology and provide a water supply pipe protection structure.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a water supply pipe protection architecture, includes newly-built sewer pipe or confluence pipe and is located the water supply pipe of newly-built sewer pipe or confluence pipe below, its characterized in that: the water supply pipe is sleeved with a welded steel pipe; the gap between the two ends of the welded steel pipe and the water supply pipe is provided with a water-swelling rubber water stop belt, and fine sand is filled between the welded steel pipe and the water supply pipe.

In the technical scheme, the welding steel pipe comprises an upper semicircular steel pipe and a lower semicircular steel pipe, a strip hole is formed in the top of the upper semicircular steel pipe, and a waterproof material is arranged on the strip hole.

In the technical scheme, the inner walls of the upper semicircular steel pipe and the lower semicircular steel pipe are provided with the anti-corrosion layers.

In the technical scheme, each end of the length of the welded steel pipe extending out of the intersection position of the newly-built sewage pipe or the converging pipe and the water supply pipe is not less than 3 meters.

Compared with the prior art, the utility model has the following advantages:

1) When the water supply pipe is constructed before the sewage pipe, the sewage pipe is laid on the water supply pipe, so as to avoid sewage leakage and pollution to domestic water supply.

2) When the utility model is installed on the existing water supply pipe, the operation is simple, and the cost is low.

3) When the utility model is installed on the existing water supply pipe, water is not required to be cut off, and the construction has little influence on the life of residents.

4) When the utility model is installed on the existing water supply pipe, the operability is strong and the reliability is high.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a cross-sectional view at B-B in fig. 1.

Fig. 4 is a schematic structural view of a lower semicircular steel pipe.

Wherein, 1-newly built sewage pipe or confluence pipe, 2-water supply pipe, 3-welded steel pipe, 31-water-swelling rubber water stop, 32-fine sand, 331-upper semicircle steel pipe, 332-lower semicircle steel pipe, 333-strip hole, 334-waterproof material.

Detailed Description

The following detailed description of the utility model is, however, not to be taken in a limiting sense, but is made merely by way of example. While making the advantages of the present utility model clearer and more readily understood by way of illustration.

As can be seen with reference to the accompanying drawings: the utility model provides a water supply pipe protection architecture, includes newly-built sewer pipe or confluence pipe 1 and is located the water supply pipe 2 of newly-built sewer pipe or confluence pipe 1 below, its characterized in that: the water supply pipe 2 is sleeved with a welded steel pipe 3; the gap between the two ends of the welded steel pipe 3 and the water supply pipe 2 is provided with a water-swelling rubber water stop 31, and fine sand 32 is filled between the welded steel pipe 3 and the water supply pipe 2.

The welded steel pipe 3 comprises an upper semicircular steel pipe 331 and a lower semicircular steel pipe 332, a long strip hole 333 is formed in the top of the upper semicircular steel pipe 331, and a waterproof material 334 is arranged on the long strip hole 333.

The inner walls of the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are provided with anti-corrosion layers.

The length of each end of the welded steel pipe 3 extending out of the intersection position of the newly built sewage pipe or the confluence pipe 1 and the water supply pipe 2 is not less than 3 meters.

The pipe diameters of the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are one level larger than the pipe diameter of the water feed pipe 2.

The upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are formed by rolling steel belts or directly cutting the whole steel pipe, and the welded steel pipe 3 can be formed after the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are folded and welded.

The length of the water-swellable rubber water stop 31 is determined according to the pipe diameter of the semicircular steel pipe; the thickness of the water-swellable rubber water stop 31 is determined according to the gap between the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 and the pipe diameter of the water supply pipe 3 after the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are folded; after the upper and lower

semicircular steel pipes

331 and 332 are closed, the water-swellable rubber water stop 31 should completely fill the void.

The waterproof material should ensure water impermeability or low water permeability;

the area of the waterproof material should be determined according to the area of the elongated hole 333, and the area of the waterproof material is slightly larger than the area of the elongated hole 333.

In practical use, the construction method of the water supply pipe protection structure comprises the following steps:

step 1: the earthwork around the water supply pipe 2 to be protected is cleaned out, so that the construction space of the welded steel pipe 3 is satisfied;

step 2: the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 are formed by rolling steel strips or directly cutting the whole steel pipe; cutting the top of the upper semicircular steel pipe 331 to form a strip hole 333, longitudinally cutting the strip hole 333 along the top of the upper semicircular steel pipe 331, and keeping the edge of the short side of the strip hole 333 at a certain distance from the end of the upper semicircular steel pipe 331; the width of the long strip holes 333 is determined according to the pipe diameter of the upper semicircular steel pipe 331, so that fine sand 32 can be filled into the upper semicircular steel pipe 331 smoothly through the long strip holes 333 and vibration tamping is ensured, and on the basis, the width of the long strip holes 333 is kept as small as possible;

step 3: intercepting four parts of the water-swellable rubber water stop belt 31 according to the inner diameters of the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332, and fixing the two ends of the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 respectively;

step 4: placing the lower semicircular steel pipe 332 right below the protected water supply pipe 2 so that the water-swellable rubber water stop 31 inside the lower semicircular steel pipe 332 is tightly attached to the water supply pipe 2;

placing the upper semicircular steel pipe 331 directly above the protected water supply pipe 2, folding the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 into a steel pipe, then welding the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 through a welding lug 4, folding the upper semicircular steel pipe 331 and the lower semicircular steel pipe 332 into a welded steel pipe 3, and requiring the welded steel pipe 3 formed after welding to be sealed and watertight;

step 5: fine sand 32 is filled into the gap between the welded steel pipe 3 and the water supply pipe 2 through the long strip holes 333, and is continuously vibrated and tamped in the sand filling process. After filling the gaps, sealing the waterproof material 334 above the strip holes 333, and then smearing a layer of waterproof cement mortar on the waterproof material 334 to ensure that the strip holes 333 of the welded steel pipes 3 are sealed and watertight;

step 6: and (5) laying a newly built sewage pipe or converging pipe 1 according to the designed elevation, and then backfilling the groove, thereby completing the protection construction of the water supply pipe 2.

Other non-illustrated parts are known in the art.

Claims

1. The utility model provides a water supply pipe protection architecture, includes newly-built sewer pipe or confluence pipe (1) and is located water supply pipe (2) of newly-built sewer pipe or confluence pipe (1) below, its characterized in that: a welded steel pipe (3) is sleeved on the water supply pipe (2); the gap between the two ends of the welded steel pipe (3) and the water supply pipe (2) is provided with a water-swelling rubber water stop belt (31), and fine sand (32) is filled between the welded steel pipe (3) and the water supply pipe (2).

2. The water supply pipe protection structure according to claim 1, wherein: the welding steel pipe (3) comprises an upper semicircular steel pipe (331) and a lower semicircular steel pipe (332), a strip hole (333) is formed in the top of the upper semicircular steel pipe (331), and a waterproof material (334) is arranged on the strip hole (333).

3. The water supply pipe protecting structure according to claim 2, wherein: the inner walls of the upper semicircular steel pipe (331) and the lower semicircular steel pipe (332) are respectively provided with an anti-corrosion layer (335).

4. A water supply pipe protection structure according to claim 3, wherein: the length of each end of the crossing part of the newly-built sewage pipe or the converging pipe (1) and the water supply pipe (2) extending out of the welded steel pipe (3) is not less than 3 meters.