2010年4月 施工技术 第39卷第4期 CONSTRUCTION TECHNOLOGY 83 土工膜破坏原因分析及防治措施 郑建华1，许四法2 (1.宁波市建筑工程安全质量监督总站，浙江宁波315010； 2.新江工业大学建筑工程学院，浙江杭州310014) 【摘要]为了防止雨水流人垃圾中形成的海滤液等多种有害物质流人入地下污染地下水以及周围环境，现代垃圾填 埋场都设置了防海系统.防渗系统一般由无纺布、防渗材料以及影润土土工毯等组成，由于在热应力、拉应力以及 穿刺等各种因素的作用下，可能导致防滤系统破坏而使有害物质流人地下.介绍了造成防系统破坏的原因及其 防治措施. [关键词]垃圾填埋场；防渗系统；破坏原因：防治措施 [中图分类号]TU761.11 [文献标识码]A [文章编号]1002-8498(2010)04-0083-02 Destructive Causes Analysis of Geomembrane and Prevention Measures Zheng Jianhua' Xu Sifa? (1.The Chief Supervision Station of Safety and Quality of Construction Engineering Ningbo Zhejiang 315010 China; 2.College of Cioil Engineering and Architecture Zhejiang University of Technology Hangzhou Zhejiang 310014 China) Abstract:The waste landfill should be designed no leachate that may include hazardous materials flowing into surrounding ground and water over long period of years.A seepage system posed of geomembrane geotextile and GCL is installed on the bottom and the side slope of a waste landfill.The seepage system is considered to bear various forces such as tensile force thermal stress and puncture and it would be damaged under the influence of various factors.The main reasons of damage of geomebrane are analyzed and the measures and suggestions on prevention are presented. Key words:waste landfill;seepage system;destructive cause;prevention measure 现代垃圾填埋场设计时都设置了以橡胶、树脂等很大的温度应力.垃圾填埋场的设计填埋年限都在 高分子材料做成的土工膜为主的防渗系统.但是由于15年左右，因此边坡部防渗系统的土工膜在铺设后长 我国垃圾不分类和成分复杂，防渗系统经常遭到破坏时间处于暴露状态，温度随着外界温度变化.另外，生 而渗漏. 垃圾在降解过程中产生较大热...
土工膜破坏原因分析及防治措施.pdf
