赵明生,池恩安,梁开水,康强,魏兴

• 1:贵州新联爆破工程集团有限公司
• 2:贵州大学矿业学院
• 3:武汉理工大学资源与环境工程学院

摘要(Abstract)：

为了研究段药量对滞回耗能谱的影响,进行了不同段药量爆破下的单孔振动试验。基于现场实测数据,利用Newmark-β时程分析方法与双线型恢复力模型对不同段药量爆破地震波作用下弹塑性SDOF结构进行能量反应,并以滞回耗能作为结构塑性累积损伤破坏的指标进行分析。结果表明:段药量是影响滞回耗能的重要因素,随着段药量的增加滞回耗能谱的峰值增大且峰值对应的结构的固有周期增大。因此可认为,段药量越大对结构产生的塑性累积损伤越大,越不利于结构的安全。研究成果可从能量的角度揭示段药量对结构塑性累积损伤破坏的影响,并为从能量的角度进行降振、抗振的深入研究提供分析基础。

关键词(KeyWords)： 爆破振动;段药量;时程分析法;滞回耗能谱

Abstract:

Keywords:

基金项目(Foundation): 贵州科技计划项目(SY2010365)

作者(Author): 赵明生,池恩安,梁开水,康强,魏兴

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