摘要
大部分的边坡失稳都与降雨有关。为了研究降雨入渗作用下对堆积体边坡的稳定性变化规律,以赤峰市某高速公路堆积体边坡工程为例,利用数值模拟Geo-studio软件分析了边坡在不同降雨条件下的入渗特征、稳定系数变化、危险滑面的演化规律。结果表明:在持续降雨9h后,不同降雨强度下的边坡稳定性系数急剧降低,此时边坡极易发生滑坡破坏;随着降雨强度的增加,边坡危险滑移面会逐渐向岩土体内部延伸,并呈现出广而深的特征。
Most slope failures are related to rainfall.In order to study the changes in the stability of the accumulation body slope under the action of rainfall infiltration,taking a highway accumulation body slope project in Chifeng City as an example,numerical simulation was used to analyze the infiltration characteristics and stability of the slope under different rainfall conditions,coefficient change and evolution law of dangerous sliding surface.The results show that after 9 hours of continuous rainfall,the slope stability coefficient under different rainfall intensities decreases sharply,and at this time the slope is prone to landslide damage;With the increase of rainfall intensity,the dangerous slip surface of the slope will gradually extend to the inside of the rock and soil,and present the characteristics of wide and deep.
作者
孙世国
方晓楠
何健
邓王倩
Sun Shiguo;Fang Xiaonan;He Jian;Deng Wangqian(School of Civil Engineering,North China University of Technology,Beijing 100144,China)
出处
《黑龙江工业学院学报（综合版）》
2021年第9期77-82,共6页
Journal of Heilongjiang University of Technology(Comprehensive Edition)
基金
国家重点研发计划课题(项目编号:2016YFC0701810)
国家自然科学基金(项目编号:41772335)。
关键词
高速公路
堆积体边坡
边坡稳定性
降雨入渗
expressway
accumulation slope
slope stability
rainfall infiltration
