Circular annular underground culvert pipe construction method

Abstract

The invention provides a circular annular underground culvert pipe construction method. The method comprises the steps of preparing a reinforcement cage, preparing a plurality of culvert pipes, digging a base groove, paving a concrete base layer, paving the culvert pipes, pouring a concrete face layer and backfilling soil. By adopting the technical scheme of the construction method, the length ofthe single culvert pipe is not more than 10 meters, so that the construction process is simplified, the self-weight of each culvert pipe is reduced, and the load on the underground soil layer is reduced; the concrete base layer is connected with the underground soil layer together, so that the load pressure of the underground culvert pipes on the underground soil layer is further reduced, the probability that the underground soil layer generates settlement to damage the culvert pipes is reduced, the structures of the underground culvert pipes are kept stable, the service lives of the underground culvert pipes are prolonged, and the repair and maintenance cost of the underground culvert pipes are reduced; and in addition, every two adjacent culvert pipes are connected together through a rubber gasket ring, so that the stability of the culvert pipe structures is favorably guaranteed when the internal temperature of the underground soil layer is not balanced, and normal water supply, power supply and gas supply of to the residential life are guaranteed.

Description

technical field [0001] The invention relates to the technical field of underground engineering construction, in particular to a construction method for an annular underground culvert. Background technique [0002] Underground culvert is a device used to accommodate various pipelines for water supply, drainage, electricity, telecommunication, optical cable, heat, gas, etc. It connects the above pipeline facilities and is laid below the ground, thereby achieving the purpose of rational and efficient use of underground space. The structure of the conventional underground culvert is usually a reinforced concrete structure. For the underground structure, in order to ensure its load strength, it is necessary to increase the thickness of the concrete and the density and diameter of the steel bars, so the cost is high; due to the cumbersome construction of the underground concrete structure, a relatively longer construction period is required At the same time, due to the increase in...

AI Technical Summary

Problems solved by technology

The structure of the conventional underground culvert is usually a reinforced concrete structure. For the underground structure, in order to ensure its load strength, it is necessary to increase the concrete thickness and the density and diameter of the steel bar, so the cost is high; due to the cumbersome construction of the underground concrete structure, a relatively longer construction period is required At the same time, due to the increase in the thickness of the concrete and the diameter of the steel bar, the weight of the pipe culvert continues to increase, making it prone to settlement, which affects its working stability and reliability, especially when the internal geological structure below the ground changes. , the joints of adjacent culvert pipes are prone to fall off, which affects its working stability and reliability, and it is difficult to overhaul

Images