爆破震动对巷道稳定性影响的数值模拟研究  

Numerical Simulation on the Influence of Blasting Vibration on the Roadway Stability

作　　者：邓飞[1] 韩晓亮[1] 胡龙飞 廖声银[1] 宋志伟 宋彦超 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州市341000 [2]浙江省高能爆破工程有限公司,浙江杭州310012

出　　处：《矿业研究与开发》2015年第10期47-50,共4页Mining Research and Development

摘　　要：为研究深孔爆破对巷道围岩稳定性的影响,以采场实测震动信号为依据,运用FLAC3D软件对爆破震动过程中巷道围岩的应力场、位移场、塑性区范围和质点震速随时间的变化特征进行数值模拟分析,结果表明,爆破震动对巷道顶板的稳定性有较大影响,在其作用下巷道的应力极值与集中区域均发生明显变化,顶、底板产生明显位移。To study the influence of blasting vibration on the roadway stability,according to the actual measurement variation data,FLAC3 Dsoftware was used to simulate the scope of the stress field,displacement field and plastic zone for surrounding rock,as well as the changing characteristics of the particle velocity with time.The numerical results indicated that blasting variation,which caused clear changes on extreme value and concentrated area of stress and led to obvious displacement of the roadway＇s roof and floor,had significant influence on the roof stability.

关 键 词：深孔爆破 爆破震动 巷道 数值模拟 

分 类 号：TD235.4[矿业工程—矿井建设]