摘要
采用大型商用动力有限元分析软件LS-DYNA,对含断层的高边坡岩体在爆破震动作用下的动力响应进行了数值模拟研究。对于不同断层厚度、断层充填介质参数及断层产状(顺层断层或反倾角断层)等的影响规律进行了详尽系统的研究,分析了地震波经过断层后的频谱变换规律。所得出的结论对于岩石高边坡开挖中爆破震动的控制具有一定的指导意义。
By using the commercial dynamic finite element analysis software, LS-DYNA, the dynamic response of high slope rock with fault under the action of blasting vibration is simulated. The influences of the thickness of fault, the parameters of the medium filled in fault, the fault occurrence （bedding faults or reversed fault） etc. on the propagation of blasting waves are studied in detail. The spectrum transformation of seismic wave after transmitting through the fault is also analyzed. The conclusion is instructive to the control of blasting vibration during the excavation blasting of high slope rock.
出处
《中国农村水利水电》
北大核心
2007年第12期67-70,73,共5页
China Rural Water and Hydropower
关键词
断层
LS-DYNA
数值模拟
减震效果
震动叠加
Fault
LS-DYNA
numerical simulation
damping effect
superposition of blasting vibration
