付波,胡英国,卢文波,陈明,严鹏

• 1:武汉大学水资源与水电工程科学国家重点实验室
• 2:武汉大学水工岩石力学教育部重点实验室

摘要(Abstract)：

爆破振动高程放大效应是岩石高边坡爆破振动规律的研究重点之一。基于LS-DYNA的动力有限元计算,研究了岩石高边坡的爆破振动局部放大效应。结果表明:对于单层马道而言,马道外缘点和马道中点出现明显的振动放大效应,而马道内侧点和坡面中点的爆破振动放大并不明显。分别研究了考虑岩体开挖损伤以及台阶中有夹层条件下高边坡的爆破振动局部放大效应,计算结果同样显示马道外缘点和马道中点出现明显的振动放大效应,考虑开挖损伤时近区的放大程度明显增强,而在有夹层的边坡台阶处,爆破振动放大效应更加明显。基于计算结果,分析了不同典型位置测点作为实际工程爆破监测点的利弊,建议马道内侧点为理想的爆破监测点。

关键词(KeyWords)： 岩石高边坡;爆破振动;放大效应;测点布置

Abstract:

Keywords:

基金项目(Foundation): 国家杰出青年基金项目(51125037);; 国家重点基础发展规划计划(973)项目(2011CB013501);; 中央高校基本科研业务费专项资金资助项目(2012206020205);; 国家自然科学基金面上项目(51279146)

作者(Author): 付波,胡英国,卢文波,陈明,严鹏

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