CN219317795U - A buried gas pipeline protection structure - Google Patents

Abstract

The utility model discloses a buried gas pipeline protection structure, which is characterized in that an upper load is borne by a cover plate, the load is sequentially transmitted to a soil layer below by a bearing platform and a mattress layer, the cover plate and the bearing platform are lapped by grooves, meanwhile, a protection shell is arranged on the outer side of a pipeline and consists of an upper part and a lower part, the protection shell is connected by bolts, the protection shell is divided into 3 layers, and an anti-corrosion layer, a protection layer and a shock absorption layer are sequentially arranged from outside to inside. The utility model has simple structure, is composed of prefabricated components, is convenient to construct and has excellent protection effect on buried gas pipelines. The utility model aims to solve the problem that the existing buried gas pipeline is damaged due to the upper load, lateral soil pressure and groundwater corrosion in a complex environment, and provides a solution for protecting the buried gas pipeline and ensuring safe operation of the buried gas pipeline.

Description

A buried gas pipeline protection structure

technical field

The utility model relates to the technical field of pipeline protection, in particular to a buried gas pipeline protection structure.

Background technique

As a clean energy, natural gas plays an extremely important role in daily life. With the development of cities and the frequent increase of municipal construction, construction activities such as building construction and land development will disturb the buried gas pipelines, posing a serious threat to their safe operation. Once the pipelines are damaged, huge losses will be caused .

The existing gas pipeline protection structure has the problems of single structure and unsatisfactory protection effect. At the same time, due to its own material problems, the existing gas pipeline protection structure is buried underground for a long time, and it is prone to aging under the influence of groundwater and other factors, and the protection effect is fast. It is difficult to provide guarantee for the safe operation of urban gas pipelines.

Utility model content

Aiming at the deficiencies of the prior art, the first purpose of this utility model is to provide a buried gas pipeline protection structure to solve the upper load caused by the construction of surrounding buildings and the lateral earth pressure on both sides of the pipeline after the buried gas pipeline is laid. And the corrosion of groundwater causes damage to buried gas pipelines.

In order to achieve the above objectives, the utility model provides a protection structure for buried gas pipelines, and proposes corresponding solutions for many problems faced by buried gas pipelines. The specific structure is as follows:

The protective structure bears the upper load through the cover plate and transmits the load to the lower soil layer sequentially through the cap and cushion layer. The cover plate and the cap are overlapped through grooves. There is a protective shell on the outside. The protective shell is divided into upper and lower parts. They are connected by bolts. The protective shell is divided into 3 layers, which are anti-corrosion layer, protective layer and shock-absorbing layer from outside to inside.

Through the above technical proposal, the utility model can realize effective protection for buried gas pipelines.

Specifically, the cover plate bears the upper load and transmits it to the lower soil layer through the bearing platform and the cushion layer, thereby avoiding the damage of the gas pipeline under the action of the upper load.

The cap and cushion layer can effectively cope with the lateral earth pressure, avoiding the damage of the gas pipeline caused by the lateral earth pressure.

The protective shell can further bear the upper load and the lateral earth pressure, and can also isolate the soil and groundwater, thereby avoiding the corrosion of the pipeline.

The anticorrosion layer effectively isolates the corrosion effect of groundwater on pipelines.

The shock-absorbing layer has the effect of shock-proof and shock-absorbing, and prevents the pipeline from being damaged due to vibration.

The use of bolts to connect the protective shell improves the overall stability and strengthens the protective effect of the structure.

The cover plate and bearing platform of the utility model buried gas pipeline protection structure adopt concrete prefabricated components, and the material used is C30 concrete. After being processed in the factory, the lap joint is carried out through the groove, and the lap joint needs to be reinforced and anti-seepage treatment. .

The cushion layer is formed by compacting gravel sand, with a width of 70 cm and a thickness of 30 cm.

The backfill soil adopts medium-coarse sand.

The bolt connection needs to be sealed with glass glue.

The anti-corrosion layer is finished by spraying anti-corrosion paint.

The protective layer is made of PE sheet with a thickness of 5cm.

The shock-absorbing layer is made of rubber material with a thickness of 4.5 cm.

The above scheme can effectively protect the buried gas pipeline, avoiding the damage to the buried gas pipeline caused by the upper load caused by the surrounding building construction, the lateral earth pressure on both sides of the pipeline, and the corrosion of groundwater. At the same time, by using prefabricated components, it can improve Improve construction efficiency and reduce construction cost.

Description of drawings

Fig. 1 is a schematic diagram of the protection structure of the buried gas pipeline in this embodiment.

Fig. 2 is a schematic diagram of the overlap between the cover plate and the platform in this embodiment.

Fig. 3 is a schematic diagram of the connection of the protective shell by bolts in this embodiment.

Fig. 4 is a schematic diagram of the protective case in this embodiment.

Description of reference signs: 1. Cover plate; 2. Cap; 3. Cushion; 4. Groove; 5. Backfill; 6. Pipeline; 7. Protective shell; 8. Bolt; 9. Anticorrosion layer; 1. Protective layer; 11. Shock-absorbing layer.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Figure 1, Figure 2, Figure 3, and Figure 4, it is a schematic diagram of the protection structure of the buried gas pipeline in this embodiment. First, after excavating the trench required for the gas pipeline, fill it with gravel and sand along the direction of the trench. And compact it to form a cushion layer; then put the lower protective shell, gas pipeline, and upper protective shell into the trench in turn, and the upper and lower protective shells are tightly connected by bolts; then backfill the soil layer, and the backfill soil must be completely covered and protected shell; then place the bearing platform on the cushion layer; finally, lap the cover plate on the bearing platform through the groove.

As shown in Figure 2, the overlap between the cover plate and the platform through the groove needs to be reinforced and anti-seepage treated with cement mortar.

As shown in Figure 3, the bolt connection of the protective shell needs to be sealed with glass glue.

After the construction of the above-mentioned buried gas pipeline protection structure is completed, the pipeline can be effectively protected, avoiding the damage to the pipeline caused by the upper load caused by the construction process of surrounding buildings, the lateral soil pressure on both sides of the pipeline, and the corrosion of groundwater.

The embodiments of the present utility model have been described in detail above. The above-mentioned implementation is only the optimal embodiment of the present utility model, but the present utility model is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, Various changes can also be made without departing from the purpose of the utility model.

Claims (8)

1. A buried gas pipeline protection structure is characterized in that: this protection architecture bears upper portion load through apron (1) and passes through cushion cap (2), mattress layer (3) in proper order with the load transfer to below soil layer, overlap joint through recess (4) between apron (1) and the cushion cap (2), pipeline (6) top is covered by backfill (5), be equipped with protective housing (7) in pipeline (6) outside, protective housing (7) divide into upper and lower two parts, connect through bolt (8), the protective housing has 3 layers, be anticorrosive coating (9), inoxidizing coating (10), buffer layer (11) from outside to inside in proper order.

2. The underground gas pipe protection structure according to claim 1, wherein: the cover plate and the bearing platform of the protection structure are precast concrete members, the used materials are C30 concrete, the cover plate and the bearing platform are lapped through grooves, and the lapped parts are required to be reinforced and subjected to seepage prevention treatment.

3. The underground gas pipe protection structure according to claim 1, wherein: the mattress layer is formed by compacting crushed stone sand, and has the width of 70cm and the thickness of 30cm.

4. The underground gas pipe protection structure according to claim 1, wherein: the backfill adopts medium coarse sand.

5. The underground gas pipe protection structure according to claim 1, wherein: and the bolt connection part is subjected to sealing treatment by glass cement.

6. The underground gas pipe protection structure according to claim 1, wherein: the anti-corrosion layer is formed by spraying anti-corrosion paint.

7. The underground gas pipe protection structure according to claim 1, wherein: the protective layer is made of PE plates, and the thickness of the protective layer is 5cm.

8. The underground gas pipe protection structure according to claim 1, wherein: the shock-absorbing layer is made of rubber material and has a thickness of 4.5cm.

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