路基工程Issue(3)：173-177,5.DOI:10.13379/j.issn.1003-8825.2017.03.36
基于有限元分析的高地应力软岩隧道蠕变特性研究
Study on Creep Property of High Ground Stress Soft Soil Tunnel Based on Finite Element Analysis
王明年 1李炬 2于丽 1谭永杰 2孙其清1
作者信息
- 1. 西南交通大学土木工程学院,成都610031
- 2. 西南交通大学交通隧道工程教育部重点实验室,成都610031
- 折叠
摘要
Abstract
Due to its large deformation,long deformation time,and significant creep effect,the high ground stress soft rock tunnel is a great challenge for tunnel design,construction and operation,and the creep property is deeply researched for Erlang Mountain Tunnel in Kangting-Nyingchi Section of Sichuan-Tibet Railway by numerical simulation.The results show that the larger the burial depth of the tunnel is,the larger deformation rate of the surrounding rock during initial period,and the deformation rate becomes stable 2 ～ 3 months after completion of tunnel surrounding rock excavation.The creep trends to accelerate 180 days after completion of the excavation when the burial depth is 1 500 m and 2 000 m.关键词
软岩隧道/高地应力/大变形/数值模拟/蠕变Key words
soft rock tunnel/high ground stress/large deformation/numerical simulation/creep分类
天文与地球科学引用本文复制引用
王明年,李炬,于丽,谭永杰,孙其清..基于有限元分析的高地应力软岩隧道蠕变特性研究[J].路基工程,2017,(3):173-177,5.
