摘要
三峡水库蓄水对库首区孕震环境影响有多大,是否需要对潜在震源的划分方案及现行地震危险性分析方法做出调整、改进,是一个亟待解决的问题。综合分析了三峡水库蓄水前后形变、重力等同步观测资料;论述了蓄水对库首区孕震环境与潜在震源可能的影响,并提出了一些研究设想。
It is a problem that to what extent the seismogenic environment will be affected by reservoir impounding and whether the delimiting scheme of potential focus and the seismic risk analysis should be adjusted. The synchronous observations of deformation and gravity before and after impounding are analyzed comprehensively, and the possible effect on the seismogenic environment and potential seismic source is discussed and a new idea about reservoir earthquake is presented by developing a numerical model to analyse the change of tectonic stress field.
出处
《大地测量与地球动力学》
CSCD
北大核心
2005年第3期116-120,共5页
Journal of Geodesy and Geodynamics
基金
科技部2002年公益研究专项(国科发[2002]484号)
长江三峡开发总公司(CT-03-07-02)
关键词
三峡库首区
孕震环境
构造应力场数值模拟
工程地震学
水库地震
the head region of the Three Gorges Reservoir, seismogenic environment, numerical model of tectonic stress field, engineering seimology, reservoir earthquake
