摘要
考察了向海底有限延伸的滨海含水层系统中由海潮及其载荷效率引起的地下水头波动.该系统由承压层和它下面的弱透水层所组成,并且向海底有限延伸,在海底露头处被一个半透水的淤泥层覆盖.本文综合考虑了弱透水层的越流、弹性储水、载荷效应以及来自淤泥层的越流对承压含水层的影响,并得出了相应的解析解.可以发现含水层下面的弱透水层的越流与弹性储水对承压含水层的水头波动也产生了很大的影响.
This paper considered the tide-induced head fluctuations in coastal confined two-layer aquifer system.The system comprises a confined aquifer and a semi-permeable layer beneath the confined aquifer,which extend under the sea with a finite length L.The submarine outlet of the aquifer is covered with a skin layer('outlet-capping').Mathematical model and analytical solution are given.In this model,all the effects of the parameters such as the elastic storage and the leakage of the semi-permeable layer,the tidal loading efficiencies of the semi-permeable layer and the confined aquifer,the offshore length of the aquifer,the leakage of the outlet-capping and the confined aquifer's tidal propagation on the confined aquifer were taken into account.A reality can be found that the lower semi-permeable layer's elastic storage can influence the groundwater head fluctuation significantly by it's leakage.
出处
《鞍山师范学院学报》
2007年第4期5-10,共6页
Journal of Anshan Normal University
基金
国家自然科学基金(40672167)
关键词
海潮
潮汐传导
滨海含水层系统
弹性储水率
越流
淤泥层边界
载荷效率
解析解
Tide
Tidal wave propagation
Coastal aquifer system
Elastic storage
Leakage
Submarine aquifer outlet-capping
Loading efficiency
Analytical solution
