| 多点渗漏垃圾填埋场三维电学检测能力及影响因素分析 |
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| 引用本文： | 姚佩佩,孙健,郭秀军.多点渗漏垃圾填埋场三维电学检测能力及影响因素分析[J].地震学刊,2012(5):585-591. |
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| 作者姓名： | 姚佩佩 孙健 郭秀军 |
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| 作者单位： | [1]中国海洋大学环境科学与工程学院,青岛266100 [2]青岛城市建设集团股份有限公司,青岛266001 |
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| 摘 要： | 通过理论分析与原位实验,研究三维电学监测系统对垃圾填埋场多渗漏点位置的检测能力,分析影响检测效果的主要因素,以为设计经济、合理、有效的实时监测系统提供依据。结果表明：膜下电位监测法具有清晰的理论基础;供电电流强弱只影响测量电位值大小,不改变其异常形态,供电强度应以保证测量电位具有较高信噪比为原则;电极系极距大小会影响对相邻漏洞的检测能力,当极距小于相邻漏洞间距时,系统可对漏点位置进行有效反映;供电电极A在填埋场顶层中部布设、B极在膜下多点相连布设的布极方式,有利于漏点检测;漏洞越大,相应位置的测量电位值越高;划痕状漏洞不易被测出。利用膜下电极系测量的电阻率剖面对漏点具有较好的反映能力,并可实现渗滤液在地下扩散过程的监测。
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| 关 键 词： | 垃圾填埋场 三维电学监测 电位分布 电阻率剖面 影响因素分析 |
Study on Detecting Capacity of 3D Electric Monitoring System for Multi-point Leakage in Refuse Landfill |
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| YAO Pei-pei,SUN Jian,GUO Xiu-jun.Study on Detecting Capacity of 3D Electric Monitoring System for Multi-point Leakage in Refuse Landfill[J].Journal of Seismology,2012(5):585-591. |
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| Authors: | YAO Pei-pei SUN Jian GUO Xiu-jun |
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| Institution: | (College of Environmental Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China l Qingdao City Construction Group Limited by Share Ltd, Qingdao, Shandong 266001,China College of Environmental Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China) |
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| Abstract: | This paper researches the 3D electrical monitoring system＇s detecting capabilities for the refuse landfill leakage points＇ position and analyzes the main factors which affect the monitoring result through theoretical analysis and test in situ. It is aimed at providing the basis for designing economic, reasonable and effective real-time monitoring system. The results show that： The potential monitoring method under the membrane has clear theoretical basis; The strength of power supply current only affects the measure- ment potential value＇s size, and it can not change the abnormal shape; The power supply should be cle- signed principally to ensure that the measurement potential value has high signal-to-noise ratio; The elec- trode spacing can affect the detecting capability for two neighboring leakage holes ; When electrode spacing is less than the distance between the two neighboring holes, the system can effectively reflect the leakage position; 3D electrical monitoring system shows the better result as the power supply electrode A is set in the middle of the landfill and B is set in some points and connecting together under the geomembrane. The bigger the loophole is, the higher the measurement potential values are. The loophole with scratch can not be detected. At the same time, using the electrode system which is under the geomembrane to get the re- sistivity profile also has better reflecting capability for leakage holes and it can realize the detection of the leachate diffusion process underground. |
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| Keywords: | refuse landfill 3D electrical monitoring potential distribution resistivity profile effect factors analysis |
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