Stability evaluation of rockfall based on AHP-Fuzzy method

The development of rockfall has complicated, multifactorial, fuzzy and uncertain characters. Based on analysis of rockfall development factors, the authors quantified the weighting matrix of these factors using AHP model. And then the weighting matrix was introduced into fuzzy integrative evaluation. By combining the AHP method with fuzzy theory, the authors presented the AHP-Fuzzy methd for stability evaluation of rockfall. By engineering applications, compared to typical stability analysis method of rockfall, the AHP-Fuzzy method has preferable reliability. Besides, this method is based on partial quantitative, partial qualitative, and facile parameters, and avoiding the disadvantage of typical stability method that extremely depends on investigation quality and mechanics parameters of rockfall.