中南大学学报（自然科学版）2017，Vol.48Issue(5)：1326-1334,9.DOI:10.11817/j.issn.1672-7207.2017.05.027
透镜体影响尾矿坝安全性的规律及其简化方法
Simplification method of lenticles and its impact on safety of tailings dam
摘要
Abstract
Based on the method of orthogonal test design, the sensitivity analysis of parameters of the lenticle was performed and a simplification method for lenticles was proposed to increase the efficiency of numerical modeling. Firstly, the depth of seepage line, the displacement of dam crest and the safety factor were considered as the evaluation indexes and the size, horizontal and vertical position, the ratio of major axis minor axis, cohesion and friction of lenticles were treated as impact factors, and the influence of these six impact factors on the safety of tailing dam was discussed through orthogonal experiment design method. An impact coefficient was defined to evaluate the impact degree of six impact factors to the safety of tailing dam, and the judge criterion was established through the combination of the principal component analysis and discriminant analysis. Based on this judge criterion, it was determined whether the lenticle is to be removed from the numerical model. The results show that the simplified method has strong operability in the process, and the calculated safety factor has certain reliability.关键词
尾矿坝/透镜体/主成分分析法/判别分析法/稳定性分析Key words
tailing dam/lenticles/principal component analysis/discriminant analysis/stability analysis分类
建筑与水利引用本文复制引用
李志平,彭振斌,何忠明,袁维..透镜体影响尾矿坝安全性的规律及其简化方法[J].中南大学学报（自然科学版）,2017,48(5):1326-1334,9.基金项目
国家自然科学基金资助项目(51508042) (Project(51508042) supported by the National Natural Science Foundation of China) （51508042）
