某水库诱发地震的危险性预测  

FORECASTING THE HAZARD OF EARTHQUAKE DUE TO RESERVOIR FILLING OF A RESERVOIR

作　　者：刘耀涛 左三胜[2] 赵志祥[3] 

机构地区：[1]四川省机场集团公司规划发展部,成都610202 [2]成都理工大学环境与土木工程学院,成都610059 [3]国电公司西北勘测设计研究院,兰州730050

出　　处：《地质灾害与环境保护》2006年第4期88-91,共4页Journal of Geological Hazards and Environment Preservation

基　　金：国家自然科学基金资助项目(40272118)

摘　　要：在某工程的区域稳定性研究和水库区工程地质调查的基础上,综合分析了水库的区域地震地质条件。依据实际存在的诱发地震条件组合,对该水库诱发地震的环境进行了分区评价。重点研究了水库区地质背景、水库诱发地震的关键因素及水库诱发地震的潜在危险性预测等方面。研究表明水库在运行过程中有发生裂隙断块岩体型或裂隙喀斯特岩体型诱发地震的可能性,但诱发地震强度仅为微震或弱震,其基本烈度不会超过历史构造地震对区内的影响。Earthquakes occur frequently under the complex quake geological condition in China, and they did occur during the time of reservoir filling. Until now 25 cases were recorded. Therefore China is one of the countries that earthquakes occur frequently due to reservoir filling. Based on the areal stability research and geological investigation of reservoir, the areal seism geological condition was analyzed synthetically. This paper evaluated the environment of earthquake occurring and the reservoir district geological background. The results suggest there is the feasibility that the earthquake occurs due to 2 kinds of reasons when the reservoir is in the store process： one is that fractured rockmass in flaw, the other is karst rockmass with flaw.

关 键 词：诱发地震 区域稳定 诱发地震条件 工程地质分区 基本烈度 

分 类 号：TU475.1[建筑科学—结构工程]