Method for determining supporting mode and excavation mode of novel highway tunnel

The invention discloses a method for determining a supporting mode and an excavation mode of a novel highway tunnel, which comprises the following steps of: after one cycle of the tunnel is completed and a new tunnel face is exposed, determining the RMR level of surrounding rock of the tunnel face; according to the RMR grading result of the tunnel face surrounding rock and the rock mass crushing degree, the supporting mode of the tunnel is determined; and according to a tunnel face surrounding rock RMR grading result, a final tunnel excavation mode is determined based on the corrected surrounding rock self-stabilization time Nguyen model. According to the method for determining the tunnel supporting mode and the excavation mode, the design work of the tunnel can be simplified to a great extent. In addition, the determination of the self-stabilization time of the tunnel provides a new thought for a tunnel construction excavation method. 本发明公开了一种新意法公路隧道支护方式和开挖方式的确定方法，在隧道一个循环完成且露出新的掌子面后，对掌子面围岩RMR级别进行确定；根据掌子面围岩RM