王智德,江俐敏,祝文化,夏元友

• 1:武汉理工大学土木工程与建筑学院
• 2:武汉职业技术学院建筑工程学院

摘要(Abstract)：

为揭示顺层岩质边坡爆破振动传播规律,采用起爆药量分别为3.2 kg、4.8 kg、4.8 kg和7.2 kg,完成现场4次爆破试验,通过沿边坡走向和坡面倾向各布置4组测点,获取振动速度监测数据。利用回归分析方法,分析不同位置的振动速度衰减规律,得到了顺层岩质边坡不同爆破开挖药量与振动速度的关系,提出了一次最大安全起爆装药预测表达式;并通过数据拟合,得到多次爆破作用下垂直与水平方向振动速度的衰减参数与药量的关系式。最后,采用3DEC数值分析方法,模拟了振动应力波在顺层岩质边坡中的传播过程,反映了顺层岩质边坡在考虑岩层走向和倾向时的振动速度变化规律,为同类型的顺层岩质边坡爆破安全控制提供参考。

关键词(KeyWords)： 顺层岩质边坡;爆破荷载;传播规律;多次爆破

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(51374163);; 云南省交通运输厅2010科技专项[云交科2010(A)07-a]

作者(Author): 王智德,江俐敏,祝文化,夏元友

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