The Double-Index Evaluation Method Of Slope Stability And New Reinforcement Measures

The safety factor method is often adopted to evaluate the slope stability , but it does not take the randomicity and discreteness of geotechnical parameters into good consideration, which often results in the conservative result and unsafe declination. However, the method of reliability can remedy the defect effectively. The combination of comprehensive safety factor method and reliability method is much advantageous than the single safety factor method in the analysis of slope stability. This paper has come to some comprehensive conclusions on the basis of the practical use of this double-index evaluation method in the slope of Pishihang Channel. A calculating program for the double-index evaluation method is compiled to raise the calculating efficiency. The reinforce measures that adopt the new thesis of renewing stress and the expansive anchor are presented.