摘要
以屯兰矿矸石山基地为工程背景,采用GeoStudio数值模拟软件对该矿矸石山稳定性进行了模拟,分析了降雨影响下矸石山的稳定性与位移变化。研究结果表明,表面覆土对矸石山稳定性影响不大;在连续降雨条件下,矸石山边坡安全系数随降雨时间的增加而降低,且在前10 d降低幅度很大,之后趋于平稳;降雨给矸石山带来的位移变化主要发生在表面土体,且垂直位移要显著大于水平位移。
Based on the engineering background of a gangue dump base in Tunlan coal mine,GeoStudio numerical simulation software is used to analyze the stability and displacement of the dump under rainfall conditions.The results show that Surface soil coating has little effect on the stability of Gangue dump.Under continuous rainfall conditions,the slope stability decreases as the continuous rainfall days increasing in the first10days.,and subsequently the safety factor turns to gentle gradually.The displacement change caused by rainfall occurs mainly in the soil covering on the gangue dump and the displacement along vertical is significantly bigger than that of the horizontal one.
出处
《山西焦煤科技》
2017年第11期31-34,42,共5页
Shanxi Coking Coal Science & Technology
