摘要
隧道变形等级判定包含分级指标选择、分级标准确定和指标值预测三部分。文章以圆形隧道粘弹、塑性解为基础,建立了考虑围岩蠕变特性的隧道变形预测方法及其分级标准,并结合兰渝线木寨岭隧道碳质板岩段工程实例,通过和基于弹塑性解的方法进行比较分析,验证了该方法的合理性,为隧道变形的控制措施研究提供理论参考。
The tunnel deformation level determining includes the grading indicator selection,grading cri-teria determination and indicator value forecasting. Based on circular tunnel viscoelastic and plastic solution,this article established the tunnel deformation prediction method and its grading standards con-sidering the creep characteristics of surrounding rocks,and combined with Muzhailing Tunnel carbona-ceous slate-rock segment engineering of LanzhouChongqing Line,through the analysis compared to the method based on elastoplastic solution,it verified the rationality of this method,thereby providing the theoretical reference for control measure research of tunnel deformation.
出处
《西部交通科技》
2016年第1期78-83,共6页
Western China Communications Science & Technology
关键词
隧道变形
围岩蠕变
蠕变劣化
预测
粘弹塑性解
Tunnel deformation
Surrounding rock creep
Creep degradation
Forecasting
Viscous elastoplastic solution
