摘要
为分析护坡植物根系对尾矿坝边坡位移及稳定性的影响,以湖南平江一处尾矿坝为工程背景,采用MIDAS软件建立香根草加固尾矿坝边坡的三维数值模型,并研究了其根系对边坡位移和稳定性的影响规律。研究结果表明,植物根系的加固对于尾矿坝坡面的位移控制存在明显效果,水平纵向和竖直方向的平均位移下降率均大于50%,可有效控制尾矿坝坡面的表层土滑动,尾矿坝边坡安全稳定性系数与香根草植株植物密度呈正相关关系。
In order to analyze the influence of slope protection plant roots on the slope displacement and stability of tailings dam,taking a tailings dam in Pingjiang,Hunan as the engineering background,a three–dimensional numerical model of vetiver reinforced tailings dam slope is established by Midas software,and the influence law of its roots on slope displacement and stability is studied.The results show that the reinforcement of plant roots has an obvious effect on the displacement control of tailings dam slope.The average displacement reduction rates in horizontal–longitudinal and vertical directions are more than 50%,which can effectively control the topsoil sliding of tailings dam slope.There is a positive correlation between the safety and stability coefficient of tailings dam slope and vetiver plant density.
作者
龚飞龙
江学良
杨慧
张贤军
赵少东
刘凯
刘勇
Gong Feilong;Jiang Xueliang;Yang Hui;Zhang Xianjun;Zhao Shaodong;Liu Kai;Liu Yong(School of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China;Hunan Tianyu Geological Environment Engineering Technology Co.,Ltd,Changsha 410007,China;Hunan Xiangjiang Engineering Construction Co.,Ltd,Changsha 410017,China;Guangdong Zhongyeshanhe Con–struction Engineering Co.,Ltd,Foshan 528061,China)
出处
《湖南文理学院学报（自然科学版）》
CAS
2022年第4期51-56,共6页
Journal of Hunan University of Arts and Science(Science and Technology)
基金
国家自然科学基金(31971727)
2019年度湖南省安全生产预防及应急专项资金项目(2019–01)
湖南省林业科技创新计划项目资助(XLK202105–3)
湖南省科技创新计划资助(2022NK2056)。
关键词
数值模拟
植物护坡
香根草根系
尾矿坝
numerical simulation
plant slope protection
vetiver root system
tailings dam
