Study on Cutting High-slope Stability Evaluation Based on Fuzzy Comprehensive Evaluation Method and Numerical Simulation

Original scientific paper The cutting of a high-slope is a complex nonlinear system that is random, fuzzy and variable. Stability evaluation for it from both qualitative and quantitative perspectives is essential in disaster management. This study firstly conducts the engineering experience analogy, giving a qualitative description of the stability of the slope. Then the cutting slope stability evaluation index system and the grade evaluation standard was established. With the weight vector and membership degree in the index evaluation system determined by the fuzzy comprehensive evaluation method, the degree of stability of the slope was comprehensively evaluated according to the membership function group. The key point on the slope was quantitatively evaluated by the numerical simulation method based on qualitative results acquired from fuzzy comprehensive evaluation. This research shows that this comprehensive analysis model can be more accurate in reflecting the various factors affecting the stability of a high slope. Furthermore, the calculation and analysis result is reasonable and of relatively higher precision, so it can provide some guidance for complex slope engineering and its systems.