地质通报2013，Vol.32Issue(7)：1099-1104,6.
海潮引起初始水位倾斜的滨海承压含水层地下水位变化的数值模拟
Numerical simulation of groundwater level fluctuation in a coastal confined aquifer with sloping initial groundwater level induced by the tide
摘要
Abstract
The tide may induce fluctuations in groundwater levels in coastal aquifers.In this paper; a numerical model describing 1D groundwater flow in a coastal confined aquifer was established based on the finite element method.Fluctuation in the tide was simplified as a sinusoidal wave.Groundwater level oscillations in a coastal confined aquifer with sloping initial groundwater level were simulated.A comparison of the results with those of the aquifer with horizontal groundwater level shows that the groundwater level oscillations induced by the tide in the coastal confined aquifer are similar to those of the tide but the fluctuation ranges of groundwater levels are smaller than those of the tide.The degree of the effect by the tide is related to the distance from the coast.The fluctuation range of groundwater levels and the tidal efficiency decrease negatively exponentially with the distance from the coast and are smaller than those of the aquifer with horizontal groundwater level.The time lag of the groundwater levels to the tide increases linearly with the distance from the coast.关键词
承压含水层/潮汐效应/数值模型/海岸带/地下水Key words
confined aquifer/ tidal effect/ numerical model/ coastal zone/ groundwater分类
天文与地球科学引用本文复制引用
陈瑞阁,周训,赵敬波,宋超..海潮引起初始水位倾斜的滨海承压含水层地下水位变化的数值模拟[J].地质通报,2013,32(7):1099-1104,6.基金项目
中央高校基本科研业务费专项资金资助项目(编号:2-9-2012-98)、教育部博士学科点专项科研基金优先发展领域项目(编号:20110022130002)和国家自然科学基金项目(批准号:41172227) （编号:2-9-2012-98）
