In allusion to one larger cavity of 1 165 m level in Jinchuan Mine,optimization design and numerical analysis of excavation and supporting engineering were studied,and the idea of having support after appropriate yield was also put forward.

Application of ADINA in simulation of foundation pit excavation and support;

3D creep numerical simulation of excavation and support in frozen soil curatin wall of crossing tunnel;

When introduction is made to the high slope excavation and support design for both the inlet and outlet of the diversion tunnel of the Gelantan hydropower station,the importance of high slope improvement on shortenin.

Field monitor measuring for the safety of excavating and supporting in underground engineering and forecast and prevention for geological hazards;