Failure probability assessment and parameter sensitivity analysis of a contaminant's transit time through a compacted clay liner
Failure probability assessment and parameter sensitivity analysis of a contaminant's transit time through a compacted clay liner
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污染物通过压实粘土衬里的传输时间的失效概率评估和参数敏感性分析
DOI：
10.1016/j.compgeo.2017.01.014
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发表时间：
2017
影响因子：
5.3
通讯作者：
Chen Yun-min
中科院分区：
文献类型：
--
作者：
Zhan Liang-tong;Chen Cheng;Wang Yu;Chen Yun-min
本文提出了污染物通过压实粘土衬砌的破坏概率评估和参数敏感性分析。采用蒙特卡罗模拟（MCS）方法对失效概率进行评估，并利用MCS中产生的失效样本研究了各种不确定性参数对失效概率的敏感性。为了便于MCS，通过收集和分析文献中报道的测量数据，开发了一个关于各种传输参数的数据库。失效概率评估和参数敏感性分析表明，吸附参数、纵向弥散度和渗透系数的不确定性对失效概率的影响最为显著。
This paper presents failure probability assessment and parameter sensitivity analysis of a contaminant’s transit time through a compacted clay liner. Monte Carlo simulation (MCS) was used to assess failure probability, and the failure samples generated in the MCS were used to investigate the sensitivity of various uncertain parameters to the failure probability. To facilitate the MCS, a database on various transport parameters was developed by collecting and analyzing measurement data reported in literature. Failure probability assessment and parameter sensitivity analysis showed that the uncertainties in adsorption parameters, longitudinal dispersivity, and hydraulic conductivity have the most significant effects on failure probability.