西安理工大学学报2016，Vol.32Issue(3)：338-342,5.DOI:10.19322/j.cnki.issn.1006-4710.2016.03.015
黄土隧道围岩压力的一种极限平衡理论计算方法研究
Study of the calculation method for surrounding rock pressure in loess tunnel based on the limit equilibrium theory
摘要
Abstract
The calculation method for surrounding rock pressure is a key problem in designing the supporting structure of tunnel engineering.Based on the failure mode of loess tunnel and the field measuring results of surrounding rock pressure,a new failure mode is proposed in this paper.Ac-cording to the limit equilibrium condition of the soil mass upward loess tunnel and the soil mass on both sides,the calculation method is derived.A comparison between the new method and five common methods is conducted by calculating the surrounding rock pressure of the same loess tun-nel,revealing that result by the new method is between the maximum value and the minimum value.And with the increase of the bedded depth,the peak depth of the loess tunnel is indicated, it shows the critical bedded depth of shallow and deep tunnel with the same strength characteris-tics.At the same time,the variation of surrounding rock pressure with the change of soil strength index is also studied,which is still between the maximum value and the minimum value of common surrounding rock pressure.关键词
极限平衡理论/黄土隧道/破坏模式/围岩压力Key words
limit equilibrium theory/loess tunnel/failure mode/surrounding rock pressure分类
建筑与水利引用本文复制引用
吴飞洁,邵生俊,佘芳涛..黄土隧道围岩压力的一种极限平衡理论计算方法研究[J].西安理工大学学报,2016,32(3):338-342,5.基金项目
国家自然科学基金资助项目（41272320）；陕西省黄土力学与工程重点实验室重点科研计划资助项目（2010JS084）；陕西省科技厅基金资助项目（2014JQ5173）；陕西省教育厅基金资助项目 （）
