金堆城露天矿排土场稳定性分析

研究了金堆城钼业公司露天矿排土场工程地质特征，分析了矿山生产爆破震动对排土场边坡稳定性的影响，并对排土场边坡变形破坏特征进行了有限元数值模拟和稳定性分析计算，提出了排土场边坡的综合治理措施，得出如下结论：①排土边坡有2种整体破坏方式和3种表层浅部破坏方式；②日常生产爆破对边坡影响不大；③建议做好排土场安全监测工作、排水工作及局部支挡工作。

Stability Analysis of Jinduicheng Open-pit Mine's Dump

Based on the study of the engineering geological characteristics of the dump in Jinduicheng Molybdenum Co.'s open-pit mine and the analysis of the effect of the vibration caused by the production blasting on the stability of the dump slope,the finite element value simulation of the deformation and destruction characteristics of the dump slope and the analysis and calculation of the dump stability are made. The measures for the comprehensive treatment of the dump slope are suggested. It is concluded that (1) there are two integral destruction modes and three surface layer shallow destruction modes of dump slope, (2) the routine production blasting has small effect on the slope and (3) it is proposed that the security monitoring, drainage and local support for the dump should be done well.