Finite element analysis for safety factor of Dr2 endangered rock mass of Suofengying Hydropower Plant

Function and effect of monitering-forecasting system of control works in Lianziya dangerous rock mass;

Study on Risk Assessment and Prevention Countermeasures of Dangerous Rock Mass;

Looking the model parameter of AR(1) model as the status vector,using Kalman filter method to analysis the deformation of dangerous rock mass.

On the basis of field investigation,the potential unstable rock masses can be classified into five types,the isolated unstable rock mass,the over-hang unstable rock mass,the conjoint unstable rock mass,the unstable rock mass with a soft foundation and the cataclastic uns.

Potential unstable rock mass disaster often happens in high-steep slope and steep cliff zone, which is a kind of common geohazard in mountainous area.

To the prevention of potential unstable rock mass,these experiment results provide proof to determine the impact energy.

The K154+950—155+380 of a certain freeway in Southwest lies in a cragged slope.

uguping crag is located in Shenxigou Hydropower Station reservoir area of the Dadu river in Sichuan province.

The Suguping fracturing crag is located on the left bank of Da-du river narrow reach in Shen Xi-gou hydropower station reservoir area in Si Chuan province.

On the foundation of special engineering geology investigation,we systematically analyze the boundary conditions of Dr2dangerous rock body,form mechanism and failure pattern,and have introduced briefly the handle measures that adopted now.

Usually,there are densely distributed small instable rocks in a low-angled stratofabric rock slope.