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李嫣绮,李广悦,汪弘.基于强度折减法的尾矿坝稳定性数值模拟分析[J].南华大学学报(自然科学版),2015,29(2):52~56.[LI Yan-qi,LI Guang-yue,WANG Hong.Numerical Modeling Analysis of Tailings Dam Stability Based on Strength Reduction Method[J].Journal of University of South China(Science and Technology),2015,29(2):52~56.]

基于强度折减法的尾矿坝稳定性数值模拟分析

Numerical Modeling Analysis of Tailings Dam Stability Based on Strength Reduction Method

投稿时间：2015-01-07

DOI：

中文关键词: FLA3D 强度折减法塑性区贯通安全系数

英文关键词:FLAC3D strength reduction method failure criteria safety factor

基金项目:

作者	单位
李嫣绮	南华大学环境保护与安全工程学院,湖南衡阳 421001
李广悦	南华大学铀矿冶生物技术国防重点学科实验室,湖南衡阳 421001
汪弘	南华大学环境保护与安全工程学院,湖南衡阳 421001

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中文摘要:

采用ANSYS有限元软件建立某尾矿库坝体的三维有限元模型,然后将该模型导入FLAC3D进行尾矿坝稳定性分析.选取Mohr-Coulomb理想弹塑体本构模型,采用强度折减法并以塑性区贯通为失稳判据计算尾矿坝安全系数.该方法最终得出的尾矿坝安全系数为1.93,与瑞典圆弧法计算结果(1.90)基本一致.

英文摘要:

A 3D finite element mode of a tailings dam in south China was developed using software ANSYS,which was then introduced into FLAC3D to assess the stability of the tailings dam.All constituents in the model were assigned Mohr-Coulomb elastic-perfectly-plastic behavior.Safety factor (SF) was calculated by strength reduction method and using plastic zone connection as failure criteria.The SF value obtained is 1.94,which is essential in agreement with the result of 1.90 from Sweden arc method.

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