岩土工程学报2023，Vol.45Issue(z2)：253-257,5.DOI:10.11779/CJGE2023S20040
地震作用下岩质边坡失稳动力响应离散元分析
Dynamic response of rock slope instability under earthquake through discrete element method
摘要
Abstract
Taking the Hongshiyan slope as the research object,combined with microscopic crack development,the discrete element method is used to study the initiation mechanism and failure process of Hongshiyan slope under seismic dynamics.The results show that with the seismic wave input,cracks develop rapidly in the weak interlayer areas due to low strength.Hongshiyan slope shows a progressive failure and collapse process of"layer-by-layer peeling off",and the disintegration phenomenon is more serious.The displacement of particles on the air-facing surface is larger.The larger the buried depth in the same vertical direction inside the slope,the smaller the particle displacement.The variation of particle velocity is closely related to the time history of the seismic waves,and the velocity curve is basically consistent with the shape of waves.关键词
地震动力响应/红石岩边坡/离散元/裂纹/渐进破坏Key words
seismic dynamic response/Hongshiyan slope/discrete element/crack/progressive failure分类
建筑与水利引用本文复制引用
刘士奇,王环玲,程志超,李宝建..地震作用下岩质边坡失稳动力响应离散元分析[J].岩土工程学报,2023,45(z2):253-257,5.基金项目
国家重点研发计划项目(2018YFC1508501) （2018YFC1508501）
