山东大学学报 (工学版) ›› 2023, Vol. 53 ›› Issue (3): 31-40.doi: 10.6040/j.issn.1672-3961.0.2021.506
柴少波1,2,史杰辉1,阿比尔的2,刘钦1,宋浪1
CHAI Shaobo1,2, SHI Jiehui1, ABI Erdi2, LIU Qin1, SONG Lang1
摘要： 假定岩体为开尔文非线性体、结构面法向满足Barton-Bandis模型、切向满足库仑滑移模型,基于时域递归法得到应力波在岩体和结构面中的传播方程。根据简化的边坡模型,结合应力波传播路径和时间延迟,对结构面与边坡坡面之间的多重反射波的传播情况进行分析,利用叠加原理得到边坡面上任意质点的法向和切向振动速度表达式。通过数值模拟对比验证理论分析的准确性,并对本研究理论和数值方法的适用范围进行简要说明。研究结果表明,结构面的刚度、监测点水平位置、坡角和坡脚竖向距离等均会对边坡振动放大效应产生一定的影响。从理论方面阐明岩体结构面对坡面质点振动放大效应的影响规律,为岩质边坡动力响应的深入研究提供理论依据。
中图分类号:
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