黄金科学技术 ›› 2018, Vol. 26 ›› Issue (6): 729-735.doi: 10.11872/j.issn.1005-2518.2018.06.729
所属专题: 专题名称
Zilong ZHOU(),Yifan WANG*(),Changtao KE
摘要:
采矿作业后残留的采空区对地下作业和地表建筑安全造成极大威胁,开展采空区系统的稳定性评价,有助于指导正常生产并预防灾害的发生。从矿柱“多米诺骨牌”级联破坏现象出发,构建并联矿柱承载模型。对矿柱强度进行估算,建立矿柱群系统承载力的极限状态方程。以某铬铁矿为例,基于Monte-Carlo模拟方法评价不同安全系数标准下矿柱群系统的稳定性,结果表明矿柱群的失效概率远大于失效标准,与矿山实际坍塌相符。在此基础上,研究发现矿柱承载力和矿柱数量是影响矿柱群系统稳定的主要因素。
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