Construction method for single-construction-channel dual-line same direction and same platform subway stations

Abstract

The invention discloses a construction method for single-construction-channel dual-line same direction and same platform subway stations. According to the plane position relation of every two adjacent subway stations, a main construction channel, construction subchannels and a construction communication channel of the two stations are determined, and station excavation and support are implemented through four steps: excavation of the main construction channels and the construction subchannels, the excavation sequence and switching of station connection sections, the excavation and support sequence of pilot tunnels in station bodies on the left line and the right line of each station, excavation and support of the communication channel, construction of secondary linings of the station bodies on the left line and the right line of each station, and release of core soil. By reasonably arranging the communication construction channel for every two adjacent stations, adjusting the spatial position relation between the construction channels and the stations, and setting the construction sequence of the communication channels and the subway stations, the working efficiency of the tunnel face is enlarged to a great extent, the transportation capacity of the main construction channels and the construction subchannels is brought into a full play, the construction period is remarkably shortened, and the project cost is lowered.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for a subway station with a single construction channel, two lines, the same direction, and the same platform. Background technique [0002] The rapid development of modern cities has led to more and more urban traffic congestion, so it is an inevitable requirement for many large cities and megacities to vigorously develop public transportation, especially rail transportation. Restricted by topographic features, in order to save land, reduce noise, save energy, beautify the environment, and reduce the interference of construction on urban traffic, more and more subway stations choose to use the underground excavation method for construction. Taking Chongqing as an example, the Shapingba Station, Fengtian Road Station, Tianxingqiao Station and Erlang Station of the rail transit ring line are all constructed using the underground excavation method. In order t...

AI Technical Summary

Problems solved by technology

This construction method will cause the working face to be idle, resulting in a long constructi

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