摘要
本文应用有限单元法对抚顺西露天矿北帮边坡及地表变形进行分析.确定了在地下开采当时、露天开采当时及不同充填类型地下采场当构造地应力降低时边坡及地表的变形特征.给出了不同情况下的位移场、应力场及塑性区的分布.并对不同情况下的变形、应力分布及塑性区特征进行了对比研究.
In this paper, finite element method is used to analyse the deformation of the slope and ground surface of Fushun west open pit. The slope and groundsurface deformation due to under-groud mining, open pitting and tectonic stress releasing have been detected. The distribution of deformation field, stress field and plastic area has been carried out. Acomparative study of characteristics of ground deformation stress distribution and plastic area caused by underground mining, open pit minind, and tectonic stress releasing, also has been given in this paper.
关键词
地表变形
有限元
采煤
groundsurface deformation, finite element, coal mining, open pitting
