电势差法在复合土工防渗膜渗漏位置探测中的应用  

Application of Potential Difference Method in Detection for Composite Geomembrane’s Leakage Position

作　　者：赵敬川[1,2] 陈亮[1,2] 梁越[3] 王宇铭[4] 陈雷[1,2] 丁小闯[1,2] 

机构地区：[1]河海大学 岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [2]河海大学岩土工程研究所,江苏南京210098 [3]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [4]杭州海康威视数字技术股份有限公司,浙江杭州310052

出　　处：《水利与建筑工程学报》2013年第1期80-83,共4页Journal of Water Resources and Architectural Engineering

基　　金：重庆交通大学水利水运工程教育部重点实验室暨国家内河航道整治工程技术研究中心开放基金项目"水库大坝深埋隐伏渗漏通道探测与反演研究"(SLK2011A02)

摘　　要：针对复合土工膜防渗的垃圾填埋场,利用土体电阻率较小而土工膜相对绝缘的特性,自行设计试验仪器,在土工膜两侧施加电场,膜上定点测量电势差的方法,判定防渗膜渗漏孔洞的位置。经开挖验证,实际的土工膜破损处与测量结果准确对应,并通过现场验证试验,反演了一种判定土工膜渗漏破损面大小及位置的方法。Based on the advantage and characteristics of small soil resistivity and relatively insulated geomembrane, a suit of specific test instrument is designed for the landfill site of composite geomembrane. As the electric field is applied on both sides of the geomembrane, the potential difference method of fixed-point measurement is used to determine the anti- permeability membrane＇ s could correspond accurate leakage hole location. It is verified through excavation that the actual geomembrane＇ s defects ly with the measurement results, and through on-site verification tests, a method is inversed and formed for judging the size and position of geomembrane＇ s seepage breakage

关 键 词：垃圾填埋场 防渗膜 渗漏探测 电势差法 渗漏破损面 

分 类 号：TL441.33[核科学技术—核技术及应用]