摘要
结合土拱效应理论,采用数值分析方法,对深埋隧道土拱效应机理以及竖向土压力作用模式展开研究。通过分析数值模拟结果,得到隧道顶部竖向土压力分布以及隧道顶部土压力随覆土厚度分布曲线,并对理论计算公式结果进行验证。
Based on the theory of soil arching,a numerical analysis method was used to study the mechanism of soil arching and the action model of vertical earth pressure in deep tunnels. By analyzing the numerical simulation results,the vertical earth pressure distribution at the top of the tunnel and the distribution curve of earth pressure at the top of the tunnel with the cover soil thickness are obtained,and the results of the theoretical calculation formula are verified.
作者
曾新平
Zeng Xinping(China Railway Siyuan Group Southwest Survey and Design Co.,Ltd,Kunming 650200,China)
出处
《山西建筑》
2018年第17期186-187,共2页
Shanxi Architecture
关键词
地铁隧道
土拱效应
竖向土压力
数值分析
subway tunnel
soil arching effect
vertical earth pressure
numerical analysis
