摘要
本文概述了软岩隧洞开挖变形失稳特征,详细介绍了适用于软岩隧洞支护设计的"收敛-约束"方法的基本概念,针对该方法在软岩隧洞支护结构优化与支护时机选取合理性等方面的应用策略进行了探讨,可为软岩隧洞支护设计提供重要参考。
Firstly, this paper summarizes the characteristics of the soft rock tunnel excavation deformation instability, and then introduces the suitable for soft rock tunnel supporting design method of ＂convergence-constraint＂ the basic concept and the deficiencies, finally based on this method in soft rock tunnel supporting structure optimization and reasonable application of strategy to select a right supporting time carried on the thorough discussion, relevant knowledge can provide important reference for soft rock tunnel supporting design.
作者
吕庆
周勇
Lv Qing;Zhou Yong(Shanghai Water Engineering Design and Research Institute Co.,Ltd Shanghai 200061;PowerChina Huadong Engineering Corporation Limited Hangzhou 310014})
出处
《上海水务》
2018年第2期12-14,11,共4页
Shanghai Water
关键词
软岩隧洞
围岩稳定性
收敛—约束理论
分析探讨
soft rock tunnel
stability of surrounding rock
convergence - constraint theory
analyze
