吴燕开,胡晓士,石玉斌,韩天,于佳丽

• 1:山东科技大学山东省土木工程防灾减灾重点实验室
• 2:山东科技大学土木工程与建筑学院

摘要(Abstract)：

以某采石厂矿石爆破开挖形成高边坡为例,采用ABAQUS有限元软件对爆炸荷载引起的岩石振动效应进行模拟研究,得到了岩质高边坡在爆破作用下的位移规律和质点振动衰减规律。分析了开挖扰动下地应力释放和爆炸应力波耦合作用下的边坡应力状态与边坡稳定性。结果表明:爆破振动产生的应力为静力开挖的9倍,振动造成局部岩体裂隙发育,是边坡出现塑性变形的主要原因;最大位移出现在边坡的中下部,质点振动的最大速度为59.2 cm/s。最后通过对边坡应力状态、塑性区的发展、位移变化以及质点的运动速度四个方面对边坡的稳定状态进行了综合评价,并今后指导施工提供一定依据。

关键词(KeyWords)： 爆破开挖;边坡;有限元;振动;稳定性

Abstract:

Keywords:

基金项目(Foundation): 山东科技大学科研创新团队支持计划项目(2105KYDT104)

作者(Author): 吴燕开,胡晓士,石玉斌,韩天,于佳丽

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