三电极法在土工膜渗漏检测中的应用
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摘要
针对已投入使用的垃圾填埋场土工膜渗漏检测热点问题,提出一种新的土工膜渗漏检测方法——三电极法。此方法运用于某垃圾卫生填埋场实际工程中,通过电位差、电流和电阻率等综合参数来反映探测异常区,准确找到垃圾填埋场渗沥液渗漏点,更适用于上层垃圾覆盖层深厚且电导率复杂的在运行垃圾填埋场土工膜渗漏探测。
In view of the hot issue of geomembrane leakage detection in landfills that had been put into use,a new geomembrane leakage detection method which was called three-electrode method was proposed. The method was applied to practical engineering,and the detected abnormal areas were reflected by the comprehensive parameters such as potential difference,current and resistivity,which could accurately find the leakage point of leachate in landfill. It was more suitable for the detection of geomembrane leakage in landfill sites with deep overburden and complex electrical conductivity.
In view of the hot issue of geomembrane leakage detection in landfills that had been put into use,a new geomembrane leakage detection method which was called three-electrode method was proposed. The method was applied to practical engineering,and the detected abnormal areas were reflected by the comprehensive parameters such as potential difference,current and resistivity,which could accurately find the leakage point of leachate in landfill. It was more suitable for the detection of geomembrane leakage in landfill sites with deep overburden and complex electrical conductivity.
引文
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[2]曹叶.城市生活垃圾渗滤液处理工艺的分析[D].西安:长安大学,2013.
[3]赵敬川,陈亮,梁越,等.电势差法在复合土工防渗膜渗漏位置探测中的应用[J].水利与建筑工程学报,2013,11(1):80-83.
[4]U.S. EPA. Survey of technologies for monitoring containment liners and covers:Report#EPA/542-R-04-013[R]. 2004.
[5]Parra J O,Woen T E. Model studies of electrical leak detection surveys in geomembrance-lined impoundements[J]. Geophysics,1998,53(11):1453-1458.