CN219317795U

CN219317795U - Buried gas pipeline protection structure

Info

Publication number: CN219317795U
Application number: CN202320809075.9U
Authority: CN
Inventors: 左春晖; 吕伟华; 鲍恩山
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-07-07
Anticipated expiration: 2033-04-12

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

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

Natural gas, which is a clean energy source, plays an extremely important role in daily life. With urban development, municipal construction is frequently increased, construction activities such as building construction and land development can cause disturbance to a gas pipeline buried underground, serious threat is caused to safe operation of the gas pipeline, and huge loss is caused once the pipeline is damaged.

The existing gas pipeline protection structure has the problems of single structure and unsatisfactory protection effect, meanwhile, the existing gas pipeline protection structure is buried underground for a long time due to the problem of self materials, is easy to age under the action of factors such as groundwater, and the protection effect is fast reduced, so that the safety operation of the urban gas pipeline is difficult to be guaranteed.

Disclosure of Invention

The first object of the present utility model is to provide a buried gas pipeline protection structure, which solves the problem that the buried gas pipeline is damaged by upper load, lateral soil pressure at two sides of the pipeline and corrosion of groundwater caused by peripheral building construction after the buried gas pipeline is laid.

In order to achieve the above purpose, the utility model provides a buried gas pipeline protection structure, and provides a corresponding solution to a plurality of problems faced by a buried gas pipeline, wherein the specific structure is as follows:

this protection architecture bears upper portion load through the apron and passes through cushion cap, mattress layer in proper order with the load transmission to below soil layer, overlap joint through the recess between apron and the cushion cap, and the pipeline top is covered by backfill, is equipped with the protective housing in the pipeline outside, and the protective housing divide into upper and lower two parts, through bolted connection, and the protective housing divide into 3 layers, from outside to inside is anticorrosive coating, inoxidizing coating, buffer layer in proper order.

Through the technical scheme, the buried gas pipeline can be effectively protected.

The cover plate bears upper load and is transmitted to a soil layer below through the bearing platform and the mattress layer, so that damage of the gas pipeline under the action of the upper load is avoided.

The bearing platform and the mattress pad layer can effectively resist lateral soil pressure, and damage of the gas pipeline caused by lateral soil pressure is avoided.

The protective housing can further bear upper portion load and side direction soil pressure, also can keep apart soil body, groundwater, and then avoids the corruption of pipeline.

The corrosion-resistant layer effectively isolates the corrosion of groundwater to the pipeline.

The shock-absorbing layer has the effects of shock resistance and impact reduction, and damage to the pipeline caused by vibration is avoided.

The protective housing is connected by the bolts, so that the overall stability is improved, and the protective effect of the structure is enhanced.

The cover plate and the bearing platform of the buried gas pipeline protection structure adopt concrete prefabricated components, the used materials are C30 concrete, the cover plate and the bearing platform are lapped through grooves after being processed in factories, and the lapped part is required to be reinforced and impermeable.

The mattress layer is formed by compacting crushed stone sand, and has the width of 70cm and the thickness of 30cm.

The backfill adopts medium coarse sand.

And the bolt connection part is subjected to sealing treatment by glass cement.

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

The protective layer is made of PE plates and has a thickness of 5cm.

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

Through the scheme, the buried gas pipeline can be effectively protected, the damage to the buried gas pipeline caused by the upper load, the lateral soil pressure on two sides of the pipeline and the corrosion of groundwater due to surrounding building construction is avoided, meanwhile, the construction efficiency is improved, and the construction cost is reduced by using the prefabricated components.

Drawings

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

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

Fig. 3 is a schematic view of the protection case according to the present embodiment by bolting.

Fig. 4 is a schematic view of the protective case of the present embodiment.

Reference numerals illustrate: 1. a cover plate; 2. bearing platform; 3. a mattress pad layer; 4. a groove; 5. backfilling soil; 6. a pipe; 7. a protective shell; 8. a bolt; 9. an anti-corrosion layer; 10. a protective layer; 11. and a shock absorption layer.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, 2, 3 and 4, which are schematic diagrams of a buried gas pipeline protection structure in this embodiment, firstly, a trench required for a gas pipeline is excavated, and then gravel sand is filled along the trench and compacted to form a mattress layer; sequentially placing the lower protective shell, the gas pipeline and the upper protective shell into the groove, and tightly connecting the upper protective shell and the lower protective shell through bolts; backfilling soil layers, wherein backfilling soil completely covers the protective shell; then placing the bearing platform on the mattress layer; and finally, overlapping the cover plate on the bearing platform through the grooves.

As shown in figure 2, the joint of the cover plate and the bearing platform through the grooves needs to be reinforced and impermeable by cement mortar.

And as shown in fig. 3, the joint of the protective shell through the bolt is required to be sealed by glass cement.

After the construction of the buried gas pipeline protection structure is completed, the pipeline can be effectively protected, and damage to the pipeline caused by upper load, lateral soil pressure on two sides of the pipeline and corrosion of groundwater in the peripheral building construction process is avoided.

While the embodiments of the present utility model have been described in detail, the foregoing embodiments are merely preferred embodiments of the present utility model, the present utility model is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims

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.