Study on Strength Parameters of Engineering Rock Masses under Safety Analysis of Hydropower Station Slope

摘要

Rock masses parameters are very important foundation of evaluating slope safety. In Fengtan project c, ψ value of rock masses parameters are determined through rock joint shear test in lab, direct shear test of rock masses in situ and back-analysis of displacement. The analysis shows that the results of shear test in situ is less than the results of shear test in lab of rock joints, but almost close to the results of back-analysis. These results can be used as standard parameters of rock masses strength. After practical application and observation it proves that the method of determining parameters of rock masses for slope stability is successful.