| 由地下水位变化反演大同—阳高6.1级地震前后应力场的动态图像 |
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| 引用本文： | 张昭栋,王吉易,耿杰,魏焕.由地下水位变化反演大同—阳高6.1级地震前后应力场的动态图像[J].内陆地震,1999(2). |
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| 作者姓名： | 张昭栋 王吉易 耿杰 魏焕 |
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| 作者单位： | 山东省地震局!济南，250021，河北省地震局!石家庄，010021，山东省地震局!济南，250021，山东省地震局!济南，250021 |
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| 基金项目： | 中国地震局“九五”攻关课题!96－913－04-01 |
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| 摘 要： | 分析研究了承压含水层应力应变与井水位变化之间的定量关系，得出了井水位变化与含水层应力应变之间的定量关系公式，给出了利用承压井水位变化反演含水层应力变化的两种新方法。利用大同地震前后井水位变化资料，反演了该地震前后大区域应力场的动态调整变化，并形成了时间与空间的演化图像。利用这些图像分析了大同地震前后大区域应力场的动态调整变化特征与可能的机制。
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| 关 键 词： | 地下水 应力场 动态图像 大同一阳高地震 |
DYNAMIC PATTERNS OF STRESS FIELD INVERSED BY THE VARIATION OF GROUNDWATER LEVEL AROUND DATONG-YANGGAO Ms6. 1 SHOCK |
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| Zhang Zhaodong ,Wang Jiyi, Geng Jie, Wei Huan.DYNAMIC PATTERNS OF STRESS FIELD INVERSED BY THE VARIATION OF GROUNDWATER LEVEL AROUND DATONG-YANGGAO Ms6. 1 SHOCK[J].Inland Earthquake,1999(2). |
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| Authors: | Zhang Zhaodong Wang Jiyi Geng Jie Wei Huan |
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| Abstract: | By studying the quantative relationship between the variation of water level in a artesianwell and the variation of the stress and strain applied to the aquifer,their quantative relationformulae are gotten,and two new methods using the well level variation to inversc the stressvariation of the aquifer are given. Based on the data of the well level varying around the Datong earthquake,the dynamic adjustment variation of the stress field in a large region is inversed,thereby shaping evolution patterns in time and space. From these patterns, the characteristics and probable mechanism of dynamic adjustment variation of stress field in thelarge region are analyzed. |
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| Keywords: | Ground water Stress field Dynamic pattern Datong-Yanggao earthquake |
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