【摘要】 常见的水库地震有三种 :断层破裂型 (构造型 )、浅表应力局部调整型 (微破裂型 )和岩溶型 ,构造型水库地震震级较高。本文从地应力、库水压力、断层渗透水压力的分布规律着手 ,应用弹性断裂力学原理分析了三种应力产生的应力强度因子及总的应力强度因子 ,并从复合型应力强度因子的断裂判据 ,分析了水库地震的发震规律更多还原

【Abstract】 The general reservoir-induced earthquake has three kinds:fault-breaking model(tectonic model),stress-adjusting model at low-surface(tiny breaking model)and karst model.The tectonic model has higher magnitude.Using elastic fracture mechanics theory,the authors analyze the stress intensity gene and total stress intensity gene produced by the three kinds of stresses through the distributing law of earth stress,pressure from reservoir water and pressure of penetrative water from fault.The authors also analyze occurring-law of reservoir-induced earthquake from breaking foundation of compounding stress intensity gene.更多还原