摘要
基于三峡井网的地质构造背景和井孔结构,分析了井网各井水位潮汐特征差异与含水层物理力学参数之间的关系。总结出:在含水层孔隙度一定情况下,井水位潮差变化幅度与含水层固体骨架体积压缩系数成反比;含水层固体骨架体积压缩系数一定时,与含水层孔隙度变化成反比。此外,还与含水层导水系数、断层类型、井点距断层距离有关。
On the basis of geological tectonic background and borehole structure,the relation between the characteristic difference of earth tide of well water level and physical parameters of confined aquifers at 8 stations of the ground water monitoring well network in the Three Gorges was analysised.The following conclutions are drawn that the earth tide of well water level varies inversely as the parameters of confined aquifers,with the porosity of the aquifer being constant;The earth tide of well water level varies inversely as porosity of the aquifer,with the the parameters of confined aquifers being constant,in addition,it was related to coefficient of transmissibility of confined aquifers,fault type,distance between well point and fault.
出处
《大地测量与地球动力学》
CSCD
北大核心
2012年第4期29-32,共4页
Journal of Geodesy and Geodynamics
基金
中国长江三峡工程开发总公司专项基金(sxsn/2377)
关键词
潮汐特征
井水位
含水层
体积压缩系数
孔隙度
tide characteristic
well level
aquifer
coefficient of volume compressibility
porosity
