安溪一号井水位的同震阶变响应特征  

Co-seismic water level steps of the Anxi-1 well,Fujian Province and their relation to rainfall conditions

作　　者：王芳[1] 黄辅琼[2] 

机构地区：[1]中国地震局地球物理研究所,中国北京100081 [2]中国地震台网中心,中国北京100045

出　　处：《地震地磁观测与研究》2012年第5期169-177,共9页Seismological and Geomagnetic Observation and Research

基　　金：国家自然科学基金委地学部主任专项(41040036)

摘　　要：选取福建安溪一号井,利用阶变响应幅度与震级、震中距之间的定量关系,分析该井的同震阶变响应特征。研究表明,降雨对井水位的同震阶变响应有一定影响;降雨通过载荷作用改变井口附近的局部应力状态,从而影响井水位对地震的响应能力。By using the quantitative relationship between the well water level change and the earthquake magnitude, the epicentral distance, this paper statistically investigated co-seismic water level step characteristics of Anxi-1 well, Fujian Province. It means that the rainfall loading, which might change the local tectonic stress state within the well area, can make an influence on co-seismic water level changes.

关 键 词：井水位 同震阶变 降雨荷载 安溪一号井 

分 类 号：P315.723[天文地球—地震学]