岩土工程学报Issue(12)：2205-2216,12.DOI:10.11779/CJGE201512010
垃圾土电阻率特性试验研究
Experimental study on electrical resistivity of municipal solid waste
摘要
Abstract
Based on the classification of its particle sizes, the electrical resistivity properties of municipal solid waste (MSW), collected from Chongqing landfills are studied. The effects of various factors (solution, porosity, moisture content and temperature, etc.) on the electrical resistivity of MSW are tested indoors. The test results show that when more pollutants are added to the specimens, such as oil pollutant, NaCl,ZnCl2 and leachate solution, a decrease trend is observed for the electrical resistivity with the increase of porosity in the waste. Supposing the porosity of landfills keeps constant, the proportion of bulk that the circuit of water and solid particles connects in parallel increases with the increase of moisture content in the waste. Meanwhile, the effect of leachate on the resisitivity mainly depends on the dilution degree of leachate, and a decrease is obtained for the electrical resistivity with the increases of moisture content in refuse. Temperature tests indicate that the correlation between electrical resistivity and temperature can be expressed as attenuation exponential function. When the moisture content keeps constant, three kinds of conductive models may be mutually transformed in the waste with the change of porosity of MSW, and it eventually causes the change of electrical resistivity. Finally, a high-density resistivity chromatography is applied in the field tests. The test results can be applied for analyzing the enriched degree and migration path of leachate in the waste mass due to the process of biodegradation of MSW, and they are in favor of evaluating the change of inter-structure of MSW.关键词
垃圾土/渗滤液/电阻率/含水率/孔隙率/温度Key words
municipal solid waste/leachate/electrical resistivity/moisture content/porosity/temperature分类
建筑与水利引用本文复制引用
赵燕茹,陈湘生,黄力平,周仲华,谢强..垃圾土电阻率特性试验研究[J].岩土工程学报,2015,(12):2205-2216,12.基金项目
中国博士后科学基金第57批面上项目（2015M570296）；中央高校基本科研业务费资助项目 （）
