摘要
为了研究矿山采用大直径深孔爆破方案采矿作业中爆破震动对凿岩巷道围岩的影响,以实测爆破震动荷载为依据,用FLAC3D3.0版作为基本计算工具,从采矿巷道的应力场和变形场的研究着手,研究在爆破震动荷载作用下凿岩巷道的围岩应力场、变形场和塑性区的状况及其变化特征,最终分析得出大直径深孔爆破震动荷载对凿岩巷道围岩的影响。模拟过程中,相应监测点的变化过程体现了爆破震动对围岩影响的特点。
In order to study the impact of blasting vibration on surrounding rock of mining tunnel by large diameter deep hole blasting in mining operation. The FLAC^3D 3.0 was chosed as basic computing tools based on the actual blasting vibration loading. From the stress and deformation of mining tunnel ,the condition and its changes of stress, deformation and plastic zone of surronnding rock in tunnel under blasting vibration loading was researched, and finally the impact of large diameter deep hole blasting vibration on surrounding rock of mining tunnel. In the process of simulation, the corresponding changes of monitoring points show the impact characteristic of blasting vibration on surrounding rock.
出处
《爆破》
CSCD
2008年第3期32-35,共4页
Blasting
关键词
爆破震动
凿岩巷道
动力荷载
数值模拟
blasting vibration
mining tunnel
dynamic load
numerical simulation
作者简介
孙浩（1964-），男；铜陵：铜陵有色冬瓜山铜矿副总工程师，采矿工程师．
