用突变理论分析矿山冒落型地震机理
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摘要
矿山冒落型地震是一种破坏性最为严重的地质灾害之一。研究其成因机理 ,对矿山安全生产具有重大的现实意义。笔者根据矿山冒落型地震的特征 ,应用突变理论和能量守恒原理 ,建立了一个简单的力学模型 ,提出由地下开采引起采空区顶板突然破坏和冒落—释放能量—诱发地震的观点 ,并结合现场实例进行分析 ,得到顶板冒落和所释放出来的能量表达式 ,这为研究矿山冒落型地震成因机理提供了一种新的方法。
The mine earthquake caused by falling is a serious geological disaster. To study its origin and mechanism is of great significance to production safety in mine. According to the characteristics of the mine earthquake caused by falling, a simple mechanics model applying the catastrophic theory and the law of energy conservation is established. The author considers that the mine earthquake might be caused by the energy release when roof falling after underground mining. Combined with the analysis of exemplified case on location, simple formulae for roof falling and energy liberation are derived, which would provide new method for the study of the origin and mechanism of mine tremor due to falling in.
The mine earthquake caused by falling is a serious geological disaster. To study its origin and mechanism is of great significance to production safety in mine. According to the characteristics of the mine earthquake caused by falling, a simple mechanics model applying the catastrophic theory and the law of energy conservation is established. The author considers that the mine earthquake might be caused by the energy release when roof falling after underground mining. Combined with the analysis of exemplified case on location, simple formulae for roof falling and energy liberation are derived, which would provide new method for the study of the origin and mechanism of mine tremor due to falling in.
引文
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9 李善邦著.中国地震[M].北京:地震出版社,1981:156～168
2 周辉.矿震孕育过程的混沌性及非线性预测理论研究[J].岩石力学与工程学报,2000,19(6):813～813
3 谷新建.冒落型矿震成因机理的研究[J].中国安全科学学报,2002,12(2):60～63
4 梁政国,张万斌.鸟瞰我国十年来冲击地压灾害的研究[J].阜新矿业学院学报,1990,9(4):1～8
5 《采矿手册》编辑委员会编.采矿手册(第四卷)[M].北京:冶金工业出版社,1990:501～512
6 国家地震局地震研究所编.中国诱发地震[M].北京:地震出版社,1984:168～174
7 傅鹤林,桑玉发.用突变理论预测地下采场冲击地压发生的可能性[J].金属矿山,1996,2(1):19～21
8 潘一山,章梦涛.用突变理论分析冲击地压发生的物理过程[J].阜新矿业学院学报,1992,11(1):12～18
9 李善邦著.中国地震[M].北京:地震出版社,1981:156～168
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