基于含水层体应变反演的天津地区井水位同震响应特征分析

Co-seismic Response Characteristics of Groundwater Level in Tianjin Based on Volumetric Strain Inversing of Aquifer

摘要: 以汶川M_S8.0地震、日本M_W9.0地震和尼泊尔M_S8.1地震为例，统计了天津地区7口井水位的同震响应特征。在此基础上，利用水位反演含水层体应变的方法，反演出天津地区井含水层的同震响应体应变变化量。结果表明，利用水位同震变化量反演出的含水层体应变，能够较为真实地反映出井孔所在位置的应变变化情况。

Abstract: Taking WenchuanM_S8.0, Japan M_W9.0, Nepal M_S8.1 as instances, this paper analyzed the co-seismic response characteristics of 7 wells' groundwater level in Tianjin. On this basis, we inversed the volumetric strain of this 7 wells' aquifer. The results show that, the variations of the volumetric strain of aquifer inversing by groundwater level with earthquake can realistically reflected the strain variation of the location borehole.