双侧壁导坑法在超大跨度隧道工程中的应用

摘要

本文分析了超大跨度隧道施工的地质条件及设计要求,提出了基于双侧壁导坑法的隧道施工过程,并对该过程进行数值模拟分析,研究了隧道围岩的应力和位移特征.最后文章阐述了超大跨度隧道施工的问题及建议,为今后超大跨度隧道施工提供了有力的理论依据.%Based on the analysis of large span tunnel construction geological conditions and design requirements, tunnel construction process was proposed based on double-side heading method, and numerical simulation analysis was made on the process,the stress and displacement characteristics of tunnel surrounding rock was explored. Finally, the article elaborated problems and suggestions of large span tunnel construction, providing a strong theoretical basis for large span tunnel construction in future.