| 两种井孔变径对水位影响试验的解释 |
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| 引用本文： | 张昭栋,吴子泉,魏焕,王忠民.两种井孔变径对水位影响试验的解释[J].高原地震,1997(2). |
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| 作者姓名： | 张昭栋 吴子泉 魏焕 王忠民 |
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| 作者单位： | 山东省地震局!济南，250014，山东省地震局!济南，250014，山东省地震局!济南，250014，山东省地震局!济南，250014 |
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| 摘 要： | 井孔变径对井水位固体潮效应影响的试验有两种不同的结果：一种是影响很大，响应幅度与井径的平方成反比；另一种是影响不大。本文用两种模式解释了两种结果，认为这与水井含水层的渗透系数及含水体的大小有关，渗透系数及含水体越大，则井孔变径对井水位固体潮效应影响越大。这主要体现了并孔水柱压力水头与含水层内孔隙压平衡，所以与并径大小无关。当渗透系数与含水体很小时，主要体现了井孔内水量变化与含水层释放、吸收水量平衡。一般情况下是介于两者之间。
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| 关 键 词： | 固体潮 含水体 渗透率 变径 |
EXPLANATION OF TEST OF INFLUENCE ON WELL WATER LEVEL FOR TWO KINDS OF VARIATION OF WELL RADIUS |
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| Zhang Zhaodong, Wu Ziquan, Wei Huan, Wang Zonmin.EXPLANATION OF TEST OF INFLUENCE ON WELL WATER LEVEL FOR TWO KINDS OF VARIATION OF WELL RADIUS[J].Plateau Earthquake Research,1997(2). |
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| Authors: | Zhang Zhaodong Wu Ziquan Wei Huan Wang Zonmin |
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| Abstract: | There are different two kinds of results in the test of influence on well water level for variation of well radius: one is that influence is very big, and the response amplitude is in myers ratio to the square of the well radius ; another is that influence is very little. In this paper, the two kinds of results are respectively explaned on basis of two kinds of models, and it is considered that has relation to permeability and size of the aquiferous bulk in a well aquifer. The greater the permeability and aquiferous bulk, the greater is the influence on the earth tide effect of the well water level for variation of the well radius. It mainly embodies a balance between the pressure head of the waterspouts in the well and pore pressure in the aquifer. Therefore, it has not relation to the size of the well radius. When the permeability and aquiferous bulk are very little, it mainly embodies a balance between the chanse of the water volume in the well and the water volume released or absorbed in the aquifer. It is between the both in ordinary circumstances. |
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| Keywords: | Earth tide Permeability Aquiferous bulk Variation of Well radius |
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