Analysis on Shield Machines Selection for Shenzhen Metro Construction

摘要

Engineering geology and hydrological geology in Shenzhen metro shield machine through conditions was analyzed. The emphasis was placed on the relations between Shield type with the permeability of the ground and the content of the clay. Risk evaluation in shield machine construction were made in respect of working face stability mechanisms,ground settlement,cutter wearing in unfavourable geological conditions, construction cost and construction progress. The keys to shield machine construction were discussed in detail. The paper can provide some references for similar projects.