Once deep-buried long tunnel is constructed in soft rock under high crustal stress,rheology of soft rock is an outstanding engineering geology problem.

Once deep-buried long tunnel is constructed in soft rock under high crustal stress,rheology of soft rock is an outstandingengineering geology problem.

In this paper,deformation and failure modes and geological characteristics of its surrounding rockmass and construction of a deep-buried long tunnel in the ShangHai-ChengDu State Highways West Part of HuBei Province were investigated.

Prediction and prevention of harmful gas in deep-lying long tunnel;

Hazard caused by harmful gases is one of the main geological hazards of deep-lying long tunnels.

Application of CSAMT electromagnetic image system in survey of deeply-buried long tunnels for expressways;

The exploration of the 5th inclined shaft in the deep buried large tunnel

The long-deep tunnels under complex geological conditions always have water-fathering problems which affect the construction safety and course.