Application of Fuzzy Comprehensive Evaluation Method in Rock Mass Quality Evaluation of Altered Rock Type Gold Deposits
There are certain limitations in the quality evaluation of engineering rock masses,whether it is the current commonly used Q-system classification method,geomechanical RMR classification method,or national standard BQ classification method.In order to obtain a more accurate and realistic evaluation result of rock mass quality,in this article,the fuzzy comprehensive evaluation method is used to evaluate the stability of rock mass.With the Jiaojia altered rock type gold deposit as an example,a fuzzy comprehensive evaluation is conducted on the rock stability of different types of alteration.The results show that the survey area of Jiaojia mining area is between-190 middle section and-330 middle section.Except for the pyrite sericite granite above-270 which is a Class Ⅲ stable rock mass,the rock mass quality of the other altered granite is poor in Class Ⅳ and very poor in Class Ⅴ.The stability of pyrite sericite cataclastic rock with the highest grade is the worst,and special attention should be paid to the relevant support work of the mining site when the mining site of the corresponding rock type is constructed.
rock mass qualityfuzzy comprehensive evaluationevaluation matrixaltered rock type gold deposit
万方数据
维普
