含断层高边坡在爆破震动作用下的动力响应特性研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
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.
引文
[1]电力工业部西北勘测设计研究院,高边坡稳定及处理技术-岩质高边坡开挖及加固措施研究[R].1995.
    [2]张永哲.爆破地震波传播特性研究[J].爆破,2000,17(增刊):6-10.
    [3]张正宇,张文煊,吴新霞,等.现代水利水电工程爆破[M].北京:中国水利水电出版社,2003.
    [4]Prakash A J,Palroy P,Misra D D.Analysis of blast vibrationcharacteristics across a trench and a pre-split plane[J].Fragblast,2004,8(1):51-60.
    [5]赵海鸥.LS-DYNA动力分析指南[M].北京:兵器工业出版社,2003.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心