摘要
针对云南某矿地下矿体的采场稳定性,运用FLAC^(3D)建模并进行开挖模拟,选择标高3 556~3 571 m建立采场模型,对采场长度、宽度以及高度分别为30、14和15 m的结构参数水平进行模拟,并得出开挖区域的位移应力图和顶底板的位移监测,之后运用Monte Carlo法建立极限方程,代入Matlab进行数值模拟,得出顶底板和边帮的失效概率。采场的左边帮、右边帮的失效概率较小,而顶底板的失效概率相对较大。
The stability of the mining field in an underground mine in Yunnan province was investigated using FLAC^3D modeling and simulation method. The excavation at the elevation 3 556 - 3 571 m was selected to set up the mining model. The structure parameters of 30 m,14 m and 15 m respectively were simulated for the length,width and height of the stope,and the displacement of excavation area was calculated and the displacement monitoring of the top bottom plate obtained. After using the Monte Carlo method to set up limit equation of the numerical simulation in Matlab,the failure probabilities of the roof,floor and slope can be obtained. It is shown that the failure probabilities of the left hand side and the right side of the stope are relatively small,while the failure probability of the top plate is relatively large.
作者
乔守乐
卿黎
梁志强
杨永盛
QIAO Shou-le;QING Li;LIANG Zhi-qiang;YANG Yong-sheng(Land and Resources Engineering College,Kunming University of Science and Technology,Kunming 650093,Chin)
出处
《矿冶》
CAS
2018年第4期45-49,共5页
Mining And Metallurgy
基金
教育部博士点基金项目(KKQS201521001)
