| 包头6.4级地震前后地下水位固体潮加卸载响应比的变化 |
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| 引用本文： | 张昭栋,刘庆国,魏焕,耿杰,王忠民.包头6.4级地震前后地下水位固体潮加卸载响应比的变化[J].高原地震,1998(4). |
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| 作者姓名： | 张昭栋 刘庆国 魏焕 耿杰 王忠民 |
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| 作者单位： | 山东省地震局，山东省建筑工程学院 |
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| 基金项目： | 中国地震局“九五攻关”课题 |
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| 摘 要： | 将加卸载响应比的理论和方法引入到地下水位潮汐资料计算中来，从岩石的应变与应力的非线性响应分析了井水位固体潮加卸载响应比的物理机理，从理论上论证可以应用地下水位观测资料来计算加卸载响应比，并研究出利用地下水位对固体潮响应来计算加卸载响应比的方法。经此方法计算了河北省万全、昌黎和河间３口水井多年的Ｂ井水位的固体潮加卸载响应比，分析了１９９６年包头６．４级地震前后地下水位固体潮加卸载响应比的变化特征。
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| 关 键 词： | 加卸载响应比 固体潮 井水位 包头地震 |
ANOMALIES OF LOADING AND UNLOADING RESPONSE RATIO OF WELL LEVEL TO EARTH TIDES BEFORE AND AFTER BAOTOU EARTHQUAKE(Ms6.4) |
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| Abstract: | The authors have quoted the theory and method of the loading and unloading response ratio to the earth tide by Yin Xiangchu in data calculation of tides of the ground water level.Through the nonlinear response of rock strain and stress,the physical mechanism of the loading and unloading response ratio of the earth tide of bulk strain have been analyzed.It is expounded and proved that calculation of the loading and unloading response ratio by means of the observation data of the ground water level is possibly,and their calculation method has been shown.The loading and unloading response ratio of the earth tide of the level in many years in the three wells:Wanquan,Changli and Hejian in Hebei province has been calculated by this method.And the short-term and impending anomalies of loading and unloading response ratio of well level to earth tides before and after Baotou earthquake(Ms6.4)in 1996 have been analyzed. |
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| Keywords: | Loading and unloading response ratio Earth tide Well level Baotou earthquake |
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