裂隙岩体巷道围岩稳定性模拟研究  

NUMERICAL SIMULATION OF STABILITY STATUS OF ROADWAY SURROUNDING ROCK IN FRACTURED ROCK MASS

作　　者：王潇 

机构地区：[1]北京中大爆破工程有限公司,北京100083

出　　处：《矿冶》2014年第4期31-34,共4页Mining And Metallurgy

摘　　要：首先分析了某矿山的工程地质条件及构造裂隙分布情况,并对关键区域岩体结构进行研究。采用数值模拟手段研究了裂隙岩体在开挖及回采条件下的应力变化及围岩变形规律,分析得到不同采掘阶段无底柱分段崩落法对裂隙岩体围岩稳定性的影响。Analysis is made on engineering geological condition and tectonic fissures distribution of the targeted mine. And the developed joint fissures of the rock mass of critical area are studied. Numerical simulation is used to study the stress changes and surrounding rock mass deformation law of fractured rock mass in the excavation and mining conditions. Taking advantage of the non-pillar sublevel caving method, the influence of this caving method on the surrounding rock stability of the fractured rock mass in different excavation phase is analyzed.

关 键 词：裂隙岩体 围岩稳定性 数值模拟 

分 类 号：TD315.5[矿业工程—矿井建设]