Construction method for prefabricated assembly type subway station

Abstract

The invention discloses a construction method for a prefabricated assembly type subway station, and belongs to the technical field of rail transit. The construction method comprises the steps of 1, setting the width of each ring of the prefabricated assembly type subway station to be 2 m, wherein each ring is composed of seven prefabricated parts; 2, adopting the fine leveling strip method in a base cushion layer; 3, constructing a reaction frame; 4, assembling base plate prefabricated parts; 5, assembling side wall prefabricated parts; 6, assembling top plate prefabricated parts; 7, carrying out concrete backfilling on a side wall foundation gap; 8, carrying out grouting on a base and mortises. The construction method has the advantages that the purpose of winter construction is achieved, and construction of a foundation pit support structure of the subway station, earth excavation, construction of a main structure, earthwork backfilling and road surface recovering can be completed within a year; problems caused by subsurface excavation method construction and open-cut method construction of the station can be fundamentally solved. The assembly type subway station has the advantages of being high in construction speed and small in occupied area and having little influence on the surroundings, the quality can be guaranteed under the on-site construction efficiency, the construction speed of constructing one ring each day is achieved, and therefore the construction method is convenient to widely popularize.

Description

technical field [0001] The invention belongs to the technical field of rail transit. Background technique [0002] At present, the construction of subway stations in our country generally adopts the underground excavation method, which has high cost and long construction period. If the subway stations in the cold northern regions of my country sometimes use the conventional open-excavation method for construction, it usually takes two winters, and the quality is difficult to guarantee. , The safety risk is high, and the occupation of roads across winter is more likely to cause urban congestion, and sometimes work can only be stopped in winter. Contents of the invention [0003] The purpose of the present invention is to provide a prefabricated subway station construction method, which solves the winter construction problem and completes the foundation pit enclosure structure, earthwork excavation, main structure, earthwork backfill and road surface restoration work of the s...

AI Technical Summary

Problems solved by technology

[0002] At present, the underground excavation method is generally used in the construction of subway stations in my country, which has high cost and long construction period. If the subway stations in the cold northern regions of my country sometimes use the conventional open-cut method for construction, it usually takes two winters, and the quality is difficult to guarantee. , High safety risk, occupying roads across winter is more likely to cause urban congestion, and sometimes work can only be stopped in winter

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