摘要
考虑隐伏多空区和坡面角的变化对边坡稳定性影响,采用FLAC3D对露天边坡的65°、66°和67°三种隐伏多空区下坡面角方案进行了稳定性数值模拟计算,通过坡面角的变化分析边坡的整体最大位移变化规律,应用Mohr圆定量分析了典型应力作用区域的岩体破坏程度。研究结果表明:通过三种不同坡面角方案的比选,坡面角为65°时整体边坡的位移变化最小,典型的应力作用区域均未受到明显的破坏,此研究成果为矿山安全经济设计提供了依据。
Considering the influence of multi -concealed goafs mtd slope angle changes on the slope stability, FLAC3D was used to simulate the stability problems of 65°, 66° and 67° slope angle on condition multi - concealed gods. The laws of maximum displacement were calculated through the changes of slope angle, and the damage extent of rocks in typical stress area is analyzed by Mohr circular quantitative method. Comparing the three schemes of different slope angle, the results show that the 65 ° slope is optimum because the relevant displacement change is minimized and the regional extent of rock mass damage is lowest. The study will provide a safe and economic design reference for all mines.
出处
《铜业工程》
CAS
2009年第4期5-7,共3页
Copper Engineering
基金
江西省教育厅资助项目(JXJG-08-84-5)
