Hydraulic properties and leachate level analysis of Kimpo metropolitan landfill, Korea
Hydraulic properties and leachate level analysis of Kimpo metropolitan landfill, Korea
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DOI：
10.1016/s0956-053x(01)00019-8
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发表时间：
2002-01-01
期刊：
影响因子：
8.1
通讯作者：
Lee, SI
中科院分区：
文献类型：
--
作者：
Jang, YS;Kim, YW;Lee, SI
通过室内试验，对金浦都市垃圾填埋场垃圾和覆盖土的水力特性进行了测定。改变压实度，以确定对导水率、田间持水量和永久萎蔫点的影响。利用属性开发了一种可靠的渗滤液分析数值工具。HELP是一种用于填埋场性能水文评价的模拟模型。为了校准，将使用实验室测试测量的参数值的模拟结果与现场数据进行比较。应用该模型，根据压实度和覆土厚度的变化，预测渗滤液水位的变化。结果表明，随着中间覆盖层土壤和垃圾压实度的增加，田间持水量和导水率降低，渗滤液水位升高。覆盖层厚度对渗滤液水位的影响较小。根据室内试验和数值试验的结果，提出了一个围海造地的指导原则。(C)2002爱思唯尔科技有限公司。保留所有权利。
Hydraulic properties of waste and cover soil from Kimpo Metropolitan Landfill were experimentally measured by laboratory tests. The degree of compaction was changed to identify the effect on hydraulic conductivity, field capacity, and permanent wilting point. Properties were utilized in developing a reliable numerical tool for leachate analysis. HELP, a simulation model for hydrologic evaluation of landfill performance, was adopted for that purpose. For calibration, results from simulation using the parameter values measured by laboratory tests were compared against the field data. The model was applied to predict the leachate level change according to the degree of compaction and cover soil thickness variation. It was found that the increase in the degree of compaction for intermediate cover soil and waste results in the decrease of field capacity and hydraulic conductivity, hence, the increase of leachate level. The effect of cover layer thickness on the leachate level was minor. Based on the findings from laboratory and numerical experiments, a guideline for reclamation practice was recommended. (C) 2002 Elsevier Science Ltd. All rights reserved.