2 tunnel s left line,this paper makes corresponding analysis on the mechanism and causes of the geological disasters such as the sandstone pressure bump,and landslide,etc.

Prediction and control of tunnel rock burst in nonpillar sublevel caving;

Research on prediction of rock burst in deep hard - rock mines;

Numerical simulation on acoustic emission during pillar rock burst;

Laboratory integrated evaluation method for engineering wall rock rock-burst;

The analysis about rock-burst in the deep-lying tunnels of the water westward-lining project;

Study of rock-burst prevention measures based on controlling the super shear stress;

Occurring mechanism of rock explosion and its prevention and cure measure;

The rock explosion is a sort of worldwide geological disasters that greatly threaten the safety of construction personnel and equipment.

This paper introduces existing factor and forecasting theory of rock explosion by Cangling tunnel as a example,analyzing the stress of rock after being blown up by using ANSYS method,combining with different criterion giving the generating probability and intensity of rock explosion,at the same time simulating sustaining defence effect on lowering and preventing the rock explosion.

Analysis on rock blasting due to deep exploitation;

In light the grey relarancy theory,it discusses the relationship between the physical mechanic property and the orienlation of rock blasting at Dongguashan copper ore deposit.