卫生垃圾填埋场边界的地电特性研究

Electrical Characters of Sanitary Landfill Border

研究卫生垃圾填埋场边界的地电特性,界定卫生垃圾填埋场边界有助于场地环境的维护和管理,采用电阻率二维层析成像技术中的3种装置排列(测深、温纳、偶极-偶极)对小型卫生垃圾填埋场模型进行对比测量,通过电阻率二维层析成像技术对填埋场边界的地电特性进行分析研究。研究结果表明,在测深和温纳两种装置排列,不能进行精确定位;而偶极-偶极的反演图象中可以界定垃圾填埋场的侧向和底部边界,其误差小于5%。

To determine the boundary of a sanitary landfill more accurately,this paper introduces a technology,namely 2D electric resistivity tomography（ERT）.Thus,a comparative survey was conducted,in which electrical characters of the landfill border were measured with three arrays such as sounding array,Wenner array and dipole-dipole array respectively.Result showed that dipole-dipole array is more accurate with an error lower than 5% in determining the landfill boundary,being useful in defining the landfill＇s lateral and bottom boundary.