揭示矿山岩体稳定性变化特征的地震活动定量特征研究  

Research on the Seismic Quantitative Character That Show the Stability Variety Characters of Mines Rock Mass

作　　者：袁子清[1] 杨小聪[1] 唐礼忠[2] 杨承祥 汪令辉[3] 

机构地区：[1]北京矿冶研究总院 [2]中南大学 [3]铜陵有色金属集团股份有限公司冬瓜山铜矿

出　　处：《金属矿山》2009年第S1期692-696,共5页Metal Mine

摘　　要：研究了冬瓜山矿震活动的震级、地震矩、能量指数、刚度模量以及Schmnit数等定量参数,得出了频率-震级与能量-地震矩分布特征以及能量指数、刚度模量、累积Schmit数的时间序列特征,揭示冬瓜山铜矿岩体经历了硬化和软化两个阶段,并以8月7号作为分界点,其后将有大的地压事件发生。然后通过对实际记录地压事件的分析,验证了结论的正确性,进一步确定了矿震活动定量特征揭示岩体稳定性变化特征的可行性和有效性,为硬岩金属矿山的岩体稳定性分析及地压灾害监测和预报提供了新的参考方法。This article researches the magnitude,moment,energy index,stiff model and Schmidt number of Dongguashan mine,and gets the distribution characters of magnitude - frequency and energy - seismic moment,the time sequence characters of energy index,stiff model and Schmidt number.Shows that the rock mass experiences stages of hardening and softening with the dividing node of 7th Aug.Then,he analysis of actual geostatic events proves the conclusions, witch confirm the feasibility and validity that the seismic quantitative character can show the stability variety character of rock mass,and reply a new method for the stability analysis of rock mss and monitoring of rock burst hazard.

关 键 词：矿山岩体 稳定性 变化特征 地震活动 定量特征 

分 类 号：TD325[矿业工程—矿井建设]