| 水库诱震机制新理论的探索──断层带弱化与岩体软化效应诱震理论 |
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| 引用本文： | 秦四清 张倬元. 水库诱震机制新理论的探索──断层带弱化与岩体软化效应诱震理论[J]. 工程地质学报, 1995, 3(1): 35-44 |
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| 作者姓名： | 秦四清 张倬元 |
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| 作者单位： | 1.中国航空工业勘察设计研究院,北京100086; |
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| 基金项目： | 国家博士后科学基金,国家地质灾害与环境保护开放实验室资助 |
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| 摘 要： | 针对走滑断层诱发的水库地震，建立了尖点突变模型，提出了发震的充要力学条件判据及地震释放能量的简单表达式。以突变理论分析为依据，建立了水库诱震机制的新假说，简称为断层带弱化与岩体软化效应诱震理论，较合理地解释了水库地震与岩性、构造、水位的关系及水库地震序列ｂ值的特征。本文的讨论从整体上深化了对水库诱震机制的认识。
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| 关 键 词： | 水库地震 尖点突变模型 弱化 软化 刚度比 |
| 收稿时间： | 1994-06-02 |
EXPLORATION OF NEW THEORY ON RESERVOIR-INDUCED EARTHQUAKE MECHANISM-THEORY ON EARTHQUAKE INDUCED BY EFFECTS OF FAULT ZONE WEAKENING AND ROCKMASS SOFTENING |
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| Qin Siqing. EXPLORATION OF NEW THEORY ON RESERVOIR-INDUCED EARTHQUAKE MECHANISM-THEORY ON EARTHQUAKE INDUCED BY EFFECTS OF FAULT ZONE WEAKENING AND ROCKMASS SOFTENING[J]. Journal of Engineering Geology, 1995, 3(1): 35-44 |
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| Authors: | Qin Siqing |
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| Affiliation: | 1.China Aviation industry Institute of Geotechnical Investigation and Surveying and Design, Beijing 100086;2.Chendu institute of Technology,Chengdu 610059 |
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| Abstract: | A cusp catastrophe model is constructed for the strike-slip fault earthquake, a necessary criterion for judgement of sufficient mechanical earthquake and a simple expression of released energy by earthuake are presented. Based on the catastrophe theory analysis,a new assumption, simply called theory on induced earthquake by fault zone weakening and rockmass softening, is sugested reasonably explaining the relation between reservoir-induced earthquake and rock types,structures,water level,and the characteristic of b value of reservoir-induced earthguake sequence.We have a clear knowledge of reservoir-inuced earthquake mechanism from this paper discussion |
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| Keywords: | Reservoir-induced earthquake Cusp catastrophe model Weakening Softening Stiffness ratio. |
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