摘要
地下水防污性能评价可为地下水资源规划和保护提供重要的科学依据。本文在回顾以往地下水防污性能评价方法的基础上,根据珠江三角洲地区水文地质条件,提出了珠江三角洲地区浅层地下水天然防污性能评价模型的初步设想——DRTALGC模型,该模型包括地下水埋深、包气带评分介质、包气带评分介质厚度、含水层介质、距河距离、地形坡度以及盖层等7个影响因子。
Groundwater vulnerability assessment can supply important scientific basis for groundwater resource planning and protection. In this paper, on the basis of retrospect anciently groundwater vulnerability assessment methods, according to hydrogeology conditions of Pearl River Delta region, referring to DRASTIC and DRTA models, the shallow groundwater intrinsic vulnerability assessment model in Pearl River Delta region DRTALGC model is put forward. It involves seven impact factors： depth to the watertable, rating media of vadose zone, thickness of rating media in vadose zone, aquifer material, level distance from site to river, gradient of landform and caprock.
出处
《工程勘察》
CSCD
北大核心
2008年第11期44-49,共6页
Geotechnical Investigation & Surveying
基金
中国地质调查局地质大调查项目(NO.2010534807)
