临时矿壁稳定性影响因素敏感性分析及其应用研究  

Sensitivity analysis of impact factors of temporary ore wall stability and its application

作　　者：王贻明[1,2] 徐恒[1,2] 吴爱祥[1,2] 艾纯明[1,2] 高维鸿[1,2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《有色金属（矿山部分）》2016年第2期78-83,共6页NONFERROUS METALS(Mining Section）

基　　金："十二五"国家科技支撑计划项目(2012BAB08B02)

摘　　要：从破坏形式、荷载分析、强度、失稳势函数及影响因素5个方面推导出临时矿壁的强度安全系数和抗倾覆安全系数的计算公式,得到影响矿壁稳定性的6个主要因素,并设计6因素5水平的正交试验对这些因素进行敏感性分析。研究结果表明,矿壁厚度对矿壁稳定性影响程度最显著,进而得到矿壁厚度与强度安全系数和抗倾覆安全系数之间的关系曲线,得出不同矿壁厚度区间的破坏表现形式,最终得到一种新的矿壁厚度确定方式,为无间柱采矿法结构参数设计提供较好的依据。Two calculation formulas are established to calculate the strength safety factor and resistive overturning safety factor from failure model,load analysis,strength,instability potential function and influence factors.At the same time,the six main factors of influencing the ore wall stability are obtained and these factors＇ sensitivity is analyzed by orthogonal experiment designed using six factors-five levels technology.The study shows that the size of ore wall thickness is the most significant to its stability.Then the curve between ore wall thickness and strength safety factor,resistive overturning safety factor and the failure patterns in different ore wall thickness interval are obtained.The study got a new way to calculate ore wall thickness value,which will certainly provide identifiable ground for the structure parameters design of non-pillar mining method.

关 键 词：临时矿壁 正交极差 安全系数 尖点突变理论 参数设计 

分 类 号：TD852[矿业工程—金属矿开采]