Reinforcing device for increasing section of highway tunnel lining

The utility model discloses a highway tunnel lining section increasing and reinforcing device which comprises a movable trolley and further comprises an installation base, a telescopic assembly and a formwork assembly. The mounting base is fixedly mounted on a movable trolley, the fixed end of the telescopic assembly is connected with the mounting base, and the movable end of the telescopic assembly is detachably connected with the formwork assembly; and the telescopic assembly works to push and abut against the formwork assembly to the inner arc face of the tunnel for lining operation. The lining section can be rapidly increased, and the construction quality of the increased section is ensured. The construction precision is improved through the movable trolley, manpower consumption is reduced, and the concrete pouring quality is improved. The problems that in the prior art, adaptability to tunnels of different sizes is poor, and the whole lane needs to be closed during construction are solved. 本实用新型公开一种公路隧道衬