The fuzzy comprehensive prediction of rock burst induced by deep mining in Xincheng gold mine

摘要

Based on the laboratory experimental study results of rock burst and the failure mode and brittle characteristics of the rocks, etc., preliminary evaluation is made on rock burst tendency of 3 kinds of rok in deep mining position of Xincheng gold mine The rock burst ordering of the 3 kinds of rock is: sericite-quartz alteration granite > biotite granite > sericite-quartz alteration granitic cataclasite. The multivariate and multiple attribute rock burst analysis model is established and rock burst in deep mining in Xincheng gold mine is evaluated by the model. The evaluation results show that in process of mining in -580~ -630 m level, sericite-quartz alteration granite has tendency of medium rock burst, biotite granite has tendency of weak rock burst and sericite-quartz alteration granitic cataclasite has no tendency of rock burst.