Modelling of Quasi 3-D Groundwater Flow and Studying of Equivalent Drainage Boundary in Beihai Peninsula,Guangxi

查看全文 作　　者：Chen Chongxi Lin Min Li GuominChina University of Geosciences , Wuhan 430074Jiang Jianmin Ye Shanshi Wu NaidongGeology Bureau of Guangxi Autonomous Region , Naming 530023 出　　处：《Journal of Earth Science》索引1992年第11卷第1期,共11页 摘　　要：This paper describes a quasi 3-D finite element model of the groundwater flow intwo—aquifer system which is constructed from a sequence of aquifer flow equations coup-led by leakage terms representing flow through the aquitard.It is applied to evaluate themaximum rate of groundwater resources exploited from the coastal aquifer withoutseawater intrusion.The main task in this model is to determine the drainage boundary ofthe aquifer extending under the sea.The information of the boundary can be obtainedfrom the fluctuations of the groundwater level caused by sea-tide fluctuations.A newidea,Equivalent Drainage Boundary(EDB),is proposed and the corresponding meth-ods,determining the EDB,are developed with tidal fluctuations data observed inboreholes.The quasi 3-D model and the methods determining EDB have been appliedto the aquifer system of Beihai peninsula,Guangxi Autonomous Region of China for cal-culating the available groundwater resources. 关 键 词：QUAD 3 - D model coastal AQUIFER EQUIVALENT Drainage BOUNDARY available groundwater resources Beihai PENINSULA .