A SYSTEM FOR MULTIPERSON AND MULTILAYER FUZZY COMPREHENSIVE EVALUATION OF ROCK SLOPE STABILITY

In the paper, the theories of System Engineering and Fuzzy Mathematics are applied to construct a multiperson and multilayer fuzzy comprehensive evaluation model for rock slope stability according to the characters that the evaluation indexes are multilayer and that the evaluation process is completed by many people in engineering geology evaluation of slope stability.The main factors affecting the stability of rock slope are analyzed, a structure of multilayer ordered evaluation tree (MOET) is set up for the comprehensive evaluation of rock slope stability, and the quantification methods are suggested for evaluation indexes of MOET which include four kinds of subordinate functions and an integrated index-weight determination system. then a fuzzy reasoning algorithm is formulated on the basis of slope engineering knowledge, a computer program flow chart of the whole comprehensive evaluation process and a computer program system for multiperson and multilayer fuzzy comprehensive evaluation of rock slope stability(SM2FCERS2) ard developed. Finally, an example is used to show the effectiveness of the system.