北京平原区地下水承压含水层组防污性能评价  

Antifouling Property Evaluation of Confined Aquifer Group in Beijing Plain

作　　者：赵微[1] 杨巧凤[1] 林健[1] 杨庆[1] 江岳[1] 

机构地区：[1]北京市水文地质工程地质大队,北京100195

出　　处：《城市地质》2017年第3期64-70,共7页Urban Geology

基　　金：北京市财政专项经费项目(PXM2015_158305_000010);北京市环境保护局综合研究项目(HCZB-2012-BJ1188)

摘　　要：防污性能研究是保护地下水环境工作的基础,为加强对承压含水层地下水资源的保护,本文分别对北京市平原区3个承压含水层组的固有防污性能进行评价。选取隔水层的岩性、厚度、连续性,含水层的岩性、分层状况和相邻含水层的水头差等要素,构建承压含水层组防污性能评价指标体系,采用评价指标评分加权计算的方法,开展分层评价,最终将防污性能划分为好、较好、中等、较差和极差5个等级。结果表明,由第一承压水层向深层,防污性能逐渐增强;每个层组的防污性能均具有一定的区域分布性,整体来看,平谷区防污性能差,大兴区和通州区防污性能好。Antifouling property research is the basis to protect groundwater environments. To strengthen to protect the confined aquifer groundwater resources, the inherent antifouling property of the three groups of confined aquifers in Beijing plain was evaluated separately in the paper. We selected several features such as aquifuge lithology, thickness, continuity, and aquifer lithology, stratification, and hydraulic head difference of adjacent aquifers, constructing confned aquifer group antifouling property evaluation system, and used weighted evaluation score calculation to carry out stratified evaluation. Eventually antifouling property is divided into five levels. The results indicate that from the shallow confned aquifer to the deep, antifouling property gradually increased. Antifouling property of each layer shows some regional distribution. Overall, poor antifouling property is located in Pinggu district and good antifouling property in Daxing and Tongzhou districts.

关 键 词：防污性能 承压含水层组 分层评价 北京平原区 

分 类 号：X824[环境科学与工程—环境工程]