汶川地震后三峡地区应力场的变化研究  

RESEARCH ON STRESS FIELD VARIATION IN THREE GORGES AREA AFTER WENCHUAN %M%s8.0 EARTHQUAKE

作　　者：张卫华[1,2] 李家明[1] 李井冈[1] 梅建昌[1,2] 

机构地区：[1]中国地震局地震研究所,武汉430071 [2]湖北省地震局,武汉430071

出　　处：《大地测量与地球动力学》2009年第5期51-53,57,共4页Journal of Geodesy and Geodynamics

基　　金：国家科技支撑计划子专题(2006BAC01B040202);国家地震局三结合课题(2012104)

摘　　要：利用2008年5月12日汶川8.0级地震发生时三峡井网8口井孔的水位阶变资料,采用承压井潮汐理论反演水井含水层体应变固体潮系数的方法,估算出该地震引起的三峡坝区、库首区应力场的调整变化。On the basis of analysis of the change of water level on may 12,2008 from the 8 wells in the Three Gorge well network, a method for inverting the parameters of the strain tide effect according to the tide theory of the pressure well is adopted. The adjustments of the stress field at the dam site and the head of the Three Gorge reservoir area are cauculated.

关 键 词：三峡井网 含水层 固体潮 地震 应力场 

分 类 号：P315.723[天文地球—地震学]