地表锚杆在大断面浅埋地铁修建中的应用研究

摘要

In this paper,the simulation analysis of 3D FDM is carried out to analyze the application of the surface anchor rod in the construction of large section and shallow buried subway. It also researches the stress characteristics of the anchor rod in different length and in different space and the settlement regularities of rock in different place from tunnel portal. Meanwhile,the engineering measures of the anchor rod in the appli-cation of the subway station are analyzed,and achieves some reference conclusion.%对地表锚杆在大断面浅埋地铁修建中的应用进行了三维有限差分数值模拟研究，研究了不同长度及不同间距条件下锚杆的受力特征及距隧道洞口不同位置处围岩的沉降规律，同时对锚杆在地铁车站应用的工程措施进行了分析，得出了一些有参考价值的结论。