黄土隧道特殊地质条件下的换拱技术总结

摘要

结合山西吕梁环城高速公路磨湾2号隧道换拱施工经验，重点阐述了特殊地形条件下，黄土隧道换拱的施工工艺及具体施工流程，较好地解决了施工中的诸多难题，坚持以人为本、安全第一的原则，保证了隧道换拱的施工安全。%Combining with the arch transfer construction experience of Mowan No. 2 tunnel in Shanxi Lvliang around grinding expressway, elabo- rated the construction technology and specific construction process of loess tunnel arch transfer under special geological condition, better solved the problems in construction, adhered to the principle of people-oriented, safety first, ensured the construction safety of tunnel arch transfer.