城市化的加快及建筑规划的制约使得隧道的线形越来越复杂,小半径急曲线隧道线形的应用越来越多。急曲线隧道施工技术是隧道工程界中公认的一个难题,本文配合实例分析了急曲线施工技术的难点及施工方法,并介绍了一些理论及新技术。 The acceleration of urbanization and the restriction of architectural planning make the tunnel’s shape more and more complicated, and the application of linear shape of the small radius sharp curve tunnel is more and more. The emergency curve tunnel construction technology is a recognized problem in the tunnel engineering field. This paper analyzes the difficulties and construction methods of the emergency curve construction technique with examples, and introduces some theories and new technologies.