Pipe burying structure capable of reducing pipe top vertical loads and construction method for pipe burying structure

Abstract

The invention discloses a pipe burying structure capable of reducing pipe top vertical loads and a construction method for the pipe burying structure. The construction method comprises the steps of S1, digging a pipe groove and a backfill groove above the pipe groove and digging at least one step on two side walls of the backfill groove; S2, laying pipes in the pipe groove and completing port welding of the pipes; S3, filling earth in the pipe groove, and compacting and flattening the filled earth to the pipe top elevation; S4, laying a degradable material interlayer above the top of the pipe, wherein the degradable material interlayer is disposed below a transverse step plane of the lowest layer of steps; S5, filling earth into the backfill groove and compacting the earth. According to the pipe burying structure and the construction method for the pipe burying structure, an soil arch effect and backfill groove side wall friction can be used for obviously reducing the top pressure of the pipes, and the pipes are protected from being fractured and damaged. The construction process is simple, costs of used materials are low, and the construction method has a good application prospect and a wide generalization performance and applicable to open digging burying of underground shallow buried pipes.

Description

technical field

[0001] The invention relates to a construction technology, in particular to a pipeline embedding structure and construction method. Background technique

[0002] With the rapid development of the national economy and urbanization, there are many shallow buried underground pipelines in the fields of municipal, agricultural, hydropower and petrochemical industries, especially municipal pipelines. The construction method of digging trenches on the ground surface, laying pipes, and then directly backfilling the soil is compacted.

[0003] This conventional construction method makes the top surface of the pipeline not only subject to a large static earth pressure (the self-weight of the backfill soil on the upper part of the pipeline), but also difficult to form a soil arch effect, resulting in the direct transmission of external additional loads such as vehicles and piled loads. Pipe top. And the pipeline is easily damaged and ruptured under heavy load, which s...

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