永胜6.0级地震场地与震害的关系  

The Relationship between the Sites and Earthquake Disaster of the M6.0 Yongsheng Earthquake

作　　者：施伟华[1] 周光全[1] 张祁民 张建国[1] 

机构地区：[1]云南省地震局,昆明650041 [2]云南省大理州地震局,云南大理671600

出　　处：《地震研究》2004年第z1期75-80,共6页Journal of Seismological Research

基　　金：云南省科技厅国际合作计划项目--"中越红河断裂带地震活动性与地震构造特征对比研究"(项目编号:2002GH10)

摘　　要：介绍了永胜6.0级地震震区的自然概貌,将影响震害的四种主要场地条件按其影响轻重分类,用震害指数划分了该次地震的震害分布及局部异常区,分析了局部场地特征对震害的影响。结果表明:在影响震害的诸多场地条件中,场地土特性的影响较显著,地形的影响不明显,场地土、覆盖层和地下水的影响有互相制约的现象。Natural situation in the earthquake area of the M6.0 Yongsheng earthquake is presented in the paper. Classifying of four site conditions influencing earthquake disaster according to their influence to earthquake disaster is made. The distribution of the earthquake disaster and the anomalous area of the earthquake are divided by means of disaster index. The results show that foundation soil has obvious influence to the earthquake disaster. And the foundation soil, overburden and groundwater level influencing the earthquake disaster have phenomena restricting each other.

关 键 词：震害指数 震害分布 场地条件 场地影响 永胜6.0级地震 

分 类 号：P315.9[天文地球—地震学]