公路隧道洞口斜交、偏压段施工技术

摘要

以云山隧道右线进口不良地质段为实例,详细介绍了洞身与山体斜交、偏压时,采用双层超前小导管注浆加固隧道围岩进洞时小导管的设计参数、施工工艺、施工要点等,对同类工程施工有一定借鉴作用。%Combined with the construction practice,the paper introduced the design parameter,construction technology and main points of highway tunnel hole bias and bias section for reference.