Construction method of reconstrating existant underground space into subway station

Abstract

A construction method of renovate underground three-storey garage into double-storey subway station. The garage includes top board storey, the first underground floor slab, the second underground floor slab, bottom floor, column and external wall. The procedures are that 1) reconstruction area is set in the garage. 2) The top board storey is reserved as station top board storey, the first underground floor slab is reserved as station central board; the bottom floor is reserved as station bottom floor. 3) The second underground floor slab is eliminated, and is connected to the column said above. The pipe line and traffic structure is not changed, and the reconstruction is local construction is low to change existing underground three storey garage into underground double storey subway station.

Description

technical field [0001] The invention relates to an urban underground construction method, in particular to a construction method for transforming an underground parking garage into a subway station. Background technique [0002] Subways are playing an increasingly important role in urban development. With the continuous deepening of construction, various construction difficulties of subway stations have become increasingly prominent. According to the "Code for Urban Rail Transit Design" (DGJ08-109-2004), there are three general standard requirements for the civil engineering of subway stations: 1) The floor height of the station hall is not less than 4250mm, and the floor height of the platform is not less than 5770mm; 2) The width of the island-type station is 16-22 meters, and the width of the side-type station is 13.8-17.8 meters; 3) The column grid spacing is 8-11 meters. At present, open-cut construction is generally used, but open-cut construction of stations in cent...

AI Technical Summary

Problems solved by technology

At present, open-cut construction is generally used, but the open-cut construction of stations in the central area of ​​the city generally involves pipeline relocation and traffic organization issues, which not only greatly increases the investment of the station itself, but also has a huge impact on surrounding businesses

In this regard, foreign countries have tried to use the three-circle shield and mining method to construct underground stations, but these methods are not only expensive, but also need further research on whether they are essentially suitable for soft soil (such as the soil in Shanghai)

Images