Discussion on tunnel Excavation Methods(I)

Abstract:

Tunnel excawition methods have been studied from theories and practices.And conditions of usageand advantags of three methods have been discussed,these are:total cross section method,step method and guidinghole method,as well as the main factors in selecting excavating methods.Suggestions on populariring latest technolo-gy,technique and strengthenning management in tumsel excavation of MGMR have been put forward.