基于蠕变效应的隧道衬砌结构耐久性研究  

Research on Durability of Tunnel Lining Structure Based on Creep Effect

作　　者：李文桦[1] 刘保国[2] 

机构地区：[1]中国建筑科学研究院地基基础研究所,北京100013 [2]北京交通大学土木建筑工程学院,北京100044

出　　处：《路基工程》2013年第5期100-103,共4页Subgrade Engineering

摘　　要：以佛岭隧道工程为依托,通过蠕变试验得到围岩和衬砌相应的力学特性参数,并对佛岭隧道在开挖后及使用期间的应力-应变规律给出具体求解,经计算可知,佛岭隧道在使用若干年后,支护的径向力和相互作用力都趋向于0.38 MPa。结论对隧道衬砌结构耐久性的研究具有一定的参考意义。Taking Foling Tunnel engineering as the background, the mechanical characteristics of the surrounding rock and the tunnel lining were obtained by creep experiment, in addition, the specific solutions for the stress-strain law after the excavation and during the operation of the Tunnel were offered. Through calculation, it is known that as regards the Foling Tunnel after put into service for several years, both the radial force and the interaction of the support tend to 0. 38 MPa. The conclusion has certain reference value to the research on durability of tunnel lining structure.

关 键 词：隧道衬砌 蠕变试验 粘弹性解析 应力-应变规律 

分 类 号：U451.5[建筑科学—桥梁与隧道工程]