付军,郝亚飞,李名松,周桂松,朱根华,李海波

• 1:葛洲坝易普力股份有限公司
• 2:中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室

摘要(Abstract)：

采用离散元程序UDEC建立了含一条节理岩体的数值计算模型,并借助小波包分析技术研究了地震信号的频带能量分布特征和信噪比。分析表明,经小波包分析技术处理后的振动信号的不同频带能量可以得到很好地表达,并将振动信号分为低频干扰信号(0~20 Hz)、有效信号(20~80 Hz)和高频噪声信号(大于80 Hz)。同时,探讨了直达波和反射波各频带能量所占总能量的百分比与爆源距离的关系。

关键词(KeyWords)： 小波包分析技术;UDEC;节理岩体;振动信号;频带能量

Abstract:

Keywords:

基金项目(Foundation): 国家973计划项目(2010CB732001);; 国家杰出青年基金(51025935)

作者(Author): 付军,郝亚飞,李名松,周桂松,朱根华,李海波

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