Research And Application Of The Alluvial Fan And Alluvial And Flood Plain Multi-layer Structure Aquifer Groundwater Model

This paPer summarized the sigrificance of water resource evaluation, present situation anddevelopmental tendency of watOr resource evauation, ways and means and their comparison of waterresource evaluaion .Finite-eletnent method was choosed to do duty for numerical valuation means .It briefnanged the principle of finite-element method and the steps on valuation of groundWater resource with it.This paPer put emphasis on studying the speciality of fiuid-bearing aquifer of multylayer structure ofproluvia1 fan in mountain front and alluvial-pluvial plain in Xinjiang and arid and semi-arid area ofnorth-west,Used subsystems of basic groundwarer model on phreatic aquifer and confined aquifer tOformed the groundWater systam model of this kind of typical area and tackled quilt good the relation ofsubsystCms .It studied dynamic charforristic of grOundwat6r sySt6m and submitt6d some processingmethods.The grOundwater system of Halajun basin in Xijiang AtUshi belongs to this kind of typical system ofmultiplayer aquifer, this paPer did numerical discreteness to groundWater flow equation on diffe ntaaquifer with finite-elemen tnethod,tackled farly good the relation of fluid-beedng aquifer,realizedsuccessfully dynamic numerical simulation of groUntheatOr on Halajun basin and predictCd many kinds ofexPIOitation Projects.