黄土隧道施工严格按照“短开挖、留核心、严控水、强支护、早封闭、快成环、紧拱仰、勤量测、速反馈”的原则组织施工,隧道的边仰坡分级开挖支护、防排水工程施工、洞深衬砌及仰拱、边墙混凝土施工等方法与一般隧道大同小异,因此本文仅对套拱及管棚施工方法、大断面Ⅴ级围岩段开挖方法进行探讨。 Loess tunnel construction in strict accordance with the "short excavation, leaving the core, strict control of water, strong support, early closure, fast loop, tight arch Yang, ground measurement, speed feedback Slope grading excavation support, drainage construction, deep lining and inverted arch, side wall concrete construction and other methods and general tunnels are similar, so this article only arch camber and pipe shed construction method, large section Ⅴ grade rock section open Digging methods to explore.