某垃圾填埋场防渗帷幕方案设计及效果浅析

Design and effect evaluation of anti-seepage curtain for a municipal solid waste landfill site

近几年,随着城市生活垃圾的大量产生,我国部分垃圾填埋场处于满负荷工作状态。由于地质构造、渗滤液收集管腐蚀破损等诸多因素影响,填埋场内渗滤液在防渗薄弱处常发生渗滤,造成环境二次污染。通过在采取遥感和地质取样等手段对某城市垃圾填埋场场地水文地质勘查的基础上,通过采取并优化防渗帷幕设计方案,针对该场地地质环境特点建立三维可视化动态污染质时空运移规律分析计算模型,并与实测结果进行对比,证明注浆防控工程措施是有效的。

In recent years,with a large number of municipal solid waste production,some landfill sites in China are under full load.Due to geological structure,leachate collection pipe corrosion damage and many other factors,leachate in landfill often percolates at the weak point of seepage control,secondary pollution of the environment offen happen.On the basis of hydrogeological survey of a municipal waste landfill site by means of remote sensing and geological sampling,by adopting and optimizing the design scheme of anti-seepage curtain,according to the geological environment characteristics of the site,a three-dimensional visualization model was established to analyze and calculate the time-space transport law of dynamic pollutants,and compared with the measured results,it is proved that grouting prevention and control engineering measures are effective.