STUDY ON ENGINEERING GEOLOGICAL CONDITION AND MAJOR GEOLOGICAL PROBLEMS DURING THE CONSTRUCTION OF METROS AND TUNNELS IN SHANGHAI AREA

During the construction of great amount of metros and tunnels,more engineering geological problems have emerged.Based on the particular geological conditions in Shanghai area,this paper analyzed the engineering geological condition related to the construction of metro and tunnel projects,which includes structure character of engineering geological stratum and groundwater level situation of shallow aquifers.Then this paper studied the major engineering geological problems induced during the construction,and some division maps of engineering geological problem grade have been made out,which can be the guidance for project design and construction.