摘要
以漳龙高速公路龙岩段乌石山隧道软弱围岩施工为对象,基于公路隧道开挖常用的全断面法、上下台阶法、单侧壁导坑法、双侧壁小导坑法进行数值计算和理论分析,研究开挖方式对围岩的变形量、应力场、塑性区以及洞周整体稳定性的影响,从力学的角度选择最适合在公路隧道软弱围岩地层的开挖方法,为隧道的合理支护和施工安全提供依据。
This article deals with the construction of weak surrounding rock in Wushishan Tunnel, Zhang-Long highway as research object, carries on numerical value calculation and theoretic analysis based on the methods of full section, up and down steps, single sidewall guide pit and dual sidewall guide pit, discussed influences on displacement, stress and plastic area of surrounding rock and stability of tunnel surrounding, selects best excavation method in weak surrounding rock of highway tunnel from point of view of mechanics and provides the basis of tunnel supporting and safety construction.
出处
《土工基础》
2004年第5期59-61,共3页
Soil Engineering and Foundation
