地下水污染防治中防渗材料渗透系数研究  

Study on Permeability Coefficient of Impervious Materials in Prevention and Control of Groundwater Pollution

作　　者：张海黎 ZHANG Haili(Sichuan Xinyang Yuanjin Environmental Protection Technology Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]四川欣洋远锦环保科技有限公司,四川成都610000

出　　处：《河南科技》2022年第23期62-65,共4页Henan Science and Technology

摘　　要：地下水污染防控中,防渗措施是隔离地面污染源、阻断污染物进入地下水环境、防止地下水污染的有效措施。由于渗透系数更能直观地表达材料防渗性能,地下水污染防治相关标准规范中,均以渗透系数作为防渗材料选择和防渗设计的依据。然而,防渗工程常采用的防渗混凝土、水泥基渗透结晶型防水涂料、环氧树脂及聚脲防水涂料等防渗材料均以抗渗压力表示防水性能。通过分析防渗材料抗渗压力的测试规定,结合地下水流动规律符合达西定律的特点,建立了抗渗压力与渗透系数的换算方法。通过将防渗材料的抗渗压力换算为渗透系数,为防渗材料选择和防渗方案制定提供参考。In the prevention and control of groundwater pollution,anti-seepage measures are effective mea⁃sures to isolate ground pollution sources,block pollutants from entering groundwater environment and prevent groundwater pollution.Because the permeability coefficient can directly express the impermeability of materi⁃als,in relevant standards of groundwater pollution prevention and control,the permeability coefficient is taken as the basis for selection of seepage prevention materials and design of seepage prevention.However,the materials often used in anti-seepage engineering,such as impervious concrete,cement-based infiltration crystalline waterproof coating,epoxy resin and polyurea waterproof coating are often used in anti-seepage en⁃gineering,the waterproof performance are indicated by impermeable pressure.By analyzing the test rules for impervious pressure of impervious materia and combining with the characteristics of groundwater flow accord⁃ing with Darcy's law,the conversion method of impermeable pressure and permeability coefficient is estab⁃lished.By converting the impervious pressure of impervious material into permeability coefficient,it provides reference for the selection of impervious material and the formulation of impervious scheme.

关 键 词：防水涂料 防渗混凝土 抗渗压力 渗透系数 

分 类 号：TG333[金属学及工艺—金属压力加工]