The Application of the Mining Method of Undergroud Excavation in the Side passage of Shanghai Metro;

In order to meet the requirements of maintaining the original condition of rock face of underground cavern,avoiding heavy excavation to protect ground environment,and reducing support cost of large-span shallow buried cavern,a new supporting method for shallow-buried cavern based on the mining method is presented.

According to the engineering characteristics of underground pedestrian passageway in Wuhan theatre with shallow burial depth and actions of frequent moving loads the applications of open-cut method,pipe jacking method,shield driving method and shallow tunneling method are analyzed.

This method,which combines“top-down method” and “shallow tunneling method”,possesses the advantages,such as economization, safety and rapid construction,ect,and it can be applied to large underground engineering in the flourishing area of city.