%0 Journal Article
%T Stability reliability of a cutting slope in Laohuzui Hydropower Station in Tibet of China
%A Fei Ye
%A Hongkai Dong
%A Wenxi Fu
%J Geomatics, Natural Hazards and Risk
%D 2019
%R https://doi.org/10.1080/19475705.2018.1554604
%X Abstract The Hoek¨CBrown empirical formulas are widely used to estimate the mechanical parameters of a rock mass. However, there exists a problem of variability and uncertainty in the mechanical parameters of a rock mass estimated by the Hoek¨CBrown empirical formulas. To do this, we present a method to implement a reliability analysis of the rock mass stability directly starting with the basic variables of the Hoek¨CBrown empirical formulas. First, a quantitative assessment of the disturbance factor is recommended to overcome the subjectivity and limitation of estimating the disturbance factor according to the guidelines by Hoek et al. Second, a performance function is built up together with the safety factor of a micro-unit. Third, the Rosenblueth point estimate method is chosen to estimate the mean and standard deviation of the factor of safety. Finally, the stability reliability of a cutting slope in Laohuzui Hydropower Station in Tibet of China is analyzed. The results of the cutting slope show good agreement with the rock mass failure that occurred
%U https://www.tandfonline.com/doi/full/10.1080/19475705.2018.1554604