摘要
由于边坡岩体参数和破坏形式的不同,锚杆很难发挥最佳的支护效果。本文以一铁路红层边坡工点为例,评估该工点的边坡病害,并设计了4种锚杆设置方案。运用FLAC 3D软件建立有限差分模型,分析锚固方案的防护效果,得出最优锚杆设置方案。研究结果表明:锚杆支护对改善边坡整体性有良好作用;根据边坡情况,适当地调整锚杆的长度,既能更好地发挥边坡的加固性能,又能保证施工的经济性。
Due to the different rock mass parameters and failure forms of slope,it is difficult for bolt to play the best support effect.In this paper,taking a railway red bed slope as an example,the slope disease of the construction site was evaluated,and four kinds of bolt setting schemes were designed.Using FLAC 3D software to establish the finite difference model,analyze the protection effect of the anchorage scheme,and obtain the optimal anchor setting scheme.The results show that bolt support has a good effect on improving slope integrity.According to the condition of the slope,adjusting the length of the anchor can not only give full play to the reinforcement performance of the slope,but also ensure the economy of the construction.
作者
张玉芳
ZHANG Yufang(Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
出处
《铁道建筑》
北大核心
2021年第2期67-70,共4页
Railway Engineering
基金
国家重点研发计划(2018YFC1504904)
中国铁路总公司科技研究开发计划(P2018G001)。
关键词
铁路路基
锚杆支护
数值模拟
边坡加固
锚杆长度
方案优化
railway subgrade
bolt support
numerical simulation
slope reinforcement
bolt length
scheme optimization
