摘要
基于三维有限差分理论,运用地下水模拟软件Visual MODFLOW中的SEAWAT模块,模拟了大连海洋大学新校区变密度条件下的海水入侵。模拟中考虑了有防渗墙和无防渗墙两种工况,并分析和比较了这两种工况下,新校区的地下水位和盐分浓度,其分布及变化规律。模拟结果表明:防渗墙对新校区地下水位和盐分浓度的分布及变化,影响都很小;盐分最终侵入校园区域,并且随着时间的增长,浓度上升至较高水平。
A three-dimensional finite-difference groundwater flow model was implemented to investigate the seawater intrusion problem of the new campus of Dalian ocean university under condition of variable density.The modeling package SEAWAT witch was employed in the Visual MODFLOW was applied for this purpose.Two different scenarios with and without the seepage-proof wall that was set along the north boundary of the schoolyard were considered to predict the groundwater table distribution and the salt concentration distribution and their respective variation under different conditions.The simulation results show that the groundwater table distribution and the salt concentration distribution and their variation are rarely affected by the seepage-proof wall.The salt enters the new campus and reaches a high level eventually.
出处
《水资源与水工程学报》
2012年第6期140-145,共6页
Journal of Water Resources and Water Engineering
关键词
海水入侵
数值模拟
变密度
SEAWAT
seawater intrusion
numerical simulation
variable density
SEAWAT
