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| 基于有限元法的双衬层危险废物填埋场高压直流电渗漏检测 | |
| 引用本文： | 赵晓慈,张以都,杨萍,能昌信.基于有限元法的双衬层危险废物填埋场高压直流电渗漏检测[J].上海大学学报(英文版),2007,11(6):585-590. |
| 作者姓名： | 赵晓慈 张以都 杨萍 能昌信 |
| 作者单位： | School of Mechanical Engineering and Automation Beihang University，School of Mechanical Engineering and Automation，Beihang University，School of Mechatronic Engineering，China University Mining and Technology(Beijing)，Computer Department，Industrial and Commercial Institute of Shandong，Chinese Research Academy of Environmental Sciences，Beijing 100083，P.R.China，Beijing 100083，P.R.China，Beijing 100083，P.R.China，Yantai 264005，P.R.China，Beijing 100012，P.R.China |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | According to the structural characteristics of hazardous waste landfill,a new model based on the finite element method(FEM)is developed.The detection layer is considered as a sealed space and it is assumed that total current flows through the leak for the high resistivity of geomembrane liner.The leak current is regarded as a positive point current I and the other current source is-I.Electrical potential of an arbitrary point in detection layer satisfies Poisson equation. Experiments for detecting leaks in liner were carried out.Excellent agreement between experimental data and simulated model data validates the new model.Parametric curves for a single leak show that with optimum selection of field survey parameters leaks can be detected effectively.For multiple leaks,the simulated results indicate that they are detectable when leak separation is larger than measurement spacing. |
| 关 键 词： | 有限元法 双衬层危险废物 填埋场 高压直流电 渗漏检测 |
| 收稿时间： | 16 May 2006 |
| 修稿时间： | 2006-05-16 |
High voltage DC leakage detection for double-lined hazardous waste landfill based on finite element method |
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| ZHAO Xiao-ci,ZHANG Yi-du,YANG Ping,NAI Chang-xin.High voltage DC leakage detection for double-lined hazardous waste landfill based on finite element method[J].Journal of Shanghai University(English Edition),2007,11(6):585-590. | |
| Authors: | ZHAO Xiao-ci ZHANG Yi-du YANG Ping NAI Chang-xin |
| Institution: | 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100083, P. R. China 2. School of Mechatronic Engineering, China University Mining and Technology(Beijing), Beijing 100083, P. R.China 3. Computer Department, Industrial and Commercial Institute of Shandong, Yantai 264005, P. R. China |
| Abstract: | According to the structural characteristics of hazardous waste landfill,a new model based on the finite element method(FEM)is developed.The detection layer is considered as a sealed space and it is assumed that total current flows through the leak for the high resistivity of geomembrane liner.The leak current is regarded as a positive point current I and the other current source is-I.Electrical potential of an arbitrary point in detection layer satisfies Poisson equation. Experiments for detecting leaks in liner were carried out.Excellent agreement between experimental data and simulated model data validates the new model.Parametric curves for a single leak show that with optimum selection of field survey parameters leaks can be detected effectively.For multiple leaks,the simulated results indicate that they are detectable when leak separation is larger than measurement spacing. |
| Keywords: | double-liner landfill leakage detection finite element method (FEM) parameter curve |
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