李海波,吴绵拔
Li Haibo Wu Mianba(Wuhan Institute of Rock and Soil Mechanics;The ChineseAcademy of Sciences;

• 1:中国科学院武汉岩土力学研究所

摘要(Abstract)：

根据反应谱理论提出了确定动载折减系数Ｂ０的方法，为边坡的动力稳定性计算提供了依据。反应谱分析结果表明，在工程爆破中当阻尼比一定时，加速度反应随固有频率的增大而增大，但加速度反应对阻尼比的变化不敏感，Ｂ０的取值在０．００８～０．１５２之间。
According to spectrum theory,a method determining the discounted coefficient of dynamic loading(B0)is put forward in this paperIt provides a basis for dynamic stability analysis of slope engineeringThe results of spectrum analysis state that in blasting engineering,when the damping ratio is constant,the reaction of acceleration increases with increasing of inherent frequencyBut the reaction of acceleration has low sensitivity on the vibrations of damping ratioThe value of B0 is from 0008 to 0152

关键词(KeyWords)： 反应谱分析,动载折减系数,动力稳定性
Spectrum analysis Discounted coefficient of dynamic loadingDynamic stability

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 李海波,吴绵拔
Li Haibo Wu Mianba(Wuhan Institute of Rock and Soil Mechanics;The ChineseAcademy of Sciences;

参考文献(References)：

• 1丁玲方．爆破动荷载折算系数的确定．第三届全国岩石动力学学术论文选集．武汉：武汉冶金科技大学出版社，1992．2克拉夫RW，彭津J．结构动力学．北京：科学出版社，1986．3龙驭球等．结构力学．北京：高等教育出版社，1983．