摘要
在对大团山39线破碎带以北矿床开展地质调查、矿岩力学性质试验的基础上,利用FLAC3D数值模拟软件,采用Mohr-Coulomb本构模型,对前期确定的开采方案进行稳定性分析。根据数值模拟分析的结果,对采场尺寸、回采顺序等进行合理的调整与补充。结果表明,采用选定的方案对回采单元划分更佳,生产中采场顶板和围岩并未发生垮落和剥落现象,满足了采场稳定性的要求,并提高了回采效率。
On the basis of geological investigation and mechanical property test of ore rock in the north of Datuanshan 39 line fracture zone,using FLAC3D numerical simulation software,using Mohr-Coulomb constitutive model,analyze the stability of the mining plan determined in the early stage.According to the results of numerical simulation analysis,reasonable adjustment and supplement of stope size and mining sequence.The results show that,it is better to use the selected scheme to divide the mining unit,the roof and surrounding rock of the stope have not collapsed or peeled off in production,it meets the requirements of stope stability and improves mining efficiency.
出处
《中国矿山工程》
2019年第6期1-5,19,共6页
China Mine Engineering
关键词
稳定性分析
采场
数值模拟
stability analysis
stope
numerical simulation
