Overhang protective device of pipelines in pit slot excavation process and construction method thereof

Abstract

The invention provides an overhang protective device of pipelines in the pit slot excavation process and a construction method thereof. The overhang protective device comprises two trusses of overhangmain brackets and two groups of steel wire ropes; the overhang main brackets are symmetrically arranged on soil layers on opposite sides of pit slots; and the steel wire ropes are symmetrically arranged, and one group of the steel wire ropes corresponds to one truss of the overhang main brackets. The specific construction method comprises the steps that the pipeline overhang positions and overhang main bracket heights are determined according to overhang pipeline lengths and forced conditions; lock fastening pieces are mounted on the pipeline overhang positions and upper portion cross bars ofthe overhang main brackets; fixing foundations and fixing blocks are mounted; the overhang main brackets are connected to the fixing foundations, binding rings are connected to the fixing blocks; andend portions of one ends of the steel wire ropes are connected with the lock fastening pieces of the pipelines, the other ends of the steel wire ropes penetrate through the fastening pieces of the overhang main brackets in a tension and extension mode and are fixed to the binding rings. The overhang protective device of the pipelines in the pit slot excavation process and the construction methodthereof can effectively protect and overhang the pipelines, and has the characteristics of simple device, balance stress, space-saving and convenient construction.

Description

technical field [0001] The invention relates to the technical field of civil engineering construction, in particular to a suspension device for pipeline protection during pit excavation and a construction method thereof. Background technique [0002] Pipelines such as water, electricity, heating and gas are mostly buried underground. With the rapid development of urban construction, underground pipelines are becoming more complex and changeable. It is inevitable to excavate the underground soil layer, and the protection of pipelines during the excavation process is particularly important. Usually, the method of isolation or reinforcement is used for pipeline protection, but the construction process is relatively complicated, and the treatment will hinder the construction of the next stage. In addition, there is a method of temporarily fixing the structure for protection, but because the fixing measures are relatively simple and unreasonable It is beneficial to the stress st...

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a suspension protection device for pipelines during pit excavation and its construction method. Through the interaction of suspension main frame, steel wire rope and other fixed equipment, the protection of pipelines during excavation is realized to solve the problem of Problems such as unstable force and obstruction of construction in pipeline protection

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