Crossing main underdrains installed DN500mm HDPE pipe in and branch underdrains installed DN200mm pipes lay on the bottom of landfill site.The pipes are used to collect and guide the leachate.

• 填埋区场底建有纵横交错的主盲沟和支盲沟，盲沟内设有DN500毫米高密度聚乙烯HDPE管和DN200毫米管网的垃圾渗滤液收集导排系统；