| 某深井矿山微地震活动研究 |
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| 引用本文： | 刘晓辉,武力聪,容宇.某深井矿山微地震活动研究[J].铜业工程,2011(6):1-6. |
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| 作者姓名： | 刘晓辉 武力聪 容宇 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083
2. 云南驰宏锌锗股份有限公司会泽采选厂,云南曲靖,654211 |
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| 基金项目： | 教育部长江学者和创新团队发展计划资助(IRT0950); 国家自然科学基金重点资助项目(50934002) |
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| 摘 要： | 云南驰宏锌锗股份有限公司会泽铅锌矿是我国一个千米深井矿山,其下属8号矿体采深已达1200余米,矿体赋存条件复杂,地应力高,导致微地震活动频发。本文根据微震监测数据及井下开采活动,对微震活动的时空分布、诱发模式以及预测预报进行了研究。结果表明:微震活动的时空分布主要与开采活动及地质构造有关,根据发生位置、震级大小、破坏特征可将微地震的诱发模式分为应变破裂、矿柱冲击以及断层滑移破裂三类,阐述了各自的发生机制。提出以地震学参数-活动率∑N/△t、视体积VA、能量指数EI的时间序列曲线来预测矿震灾害,并对其物理意义及破坏过程中可能出现的特征进行了理论分析,现场应用后证明:地压灾害发生前,活动率∑N/△t及视体积VA急剧增加,能量指数EI突然降低。
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| 关 键 词： | 深井开采 微震活动 时空分布 预测预报 |
Study on Microseismic Activities in a Deep Mine |
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| LIU Xiao-hui
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WU Li-cong
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RONG Yu.Study on Microseismic Activities in a Deep Mine[J].Copper Engineering,2011(6):1-6. |
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| Authors: | LIU Xiao-hui WU Li-cong RONG Yu |
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| Affiliation: | LIU Xiao-hui1,WU Li-cong1,RONG Yu 2(1.School of Civil & Environment Engineering,University of Science & Technology Beijing,Beijing 100083,China,2.Mine and Mineral Dressing Plant,Yunnan Chihong Zn & Ge Co.,LTD.,Qujing 654211,Yunnan,China) |
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| Abstract: | Huize Lead & Zinc mine is a deep kilometer well in Yunnan chihong Zn & Ge Co.,LTD.in China,in which 8# orebody's mining depth has reached more than 1200m.The deep ore body has complicated condition and high ground stress,which causes microseismic occuring frequently.Based on micro-seismic monitoring date and mining activities underground,the temporal and spatial distribution,induced model,prediction and forecast of microseismic activities are studied.The results show: temporal and spatial of the microseismi... |
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| Keywords: | deep underground mining microseismic activities temporal and spatial distribution prediction and forecast |
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