Tunnel reinforcing structure

The invention relates to a tunnel reinforcing structure which comprises a horizontally-arranged bottom plate, a plurality of supporting shells are arranged on the bottom plate at equal intervals in the circumferential direction, a driving structure for driving the supporting shells to move is arranged on the bottom plate, and moving grooves are formed in every two adjacent supporting shells. And an inner plate is slidably connected into the moving groove, one end of the inner plate is located in one supporting shell, the other end of the inner plate is located in the other adjacent supporting shell, and the inner plate is slidably connected with the supporting shells. The tunnel supporting and reinforcing device has the advantages that in the supporting and reinforcing process, the influence of rock blocks and soil blocks falling off from the tunnel on tunnel internal construction can be reduced, and then the safety of constructors is improved. 本申请涉及一种隧道加固结构，包括有水平设置的底板，所述底板上设置有支撑外壳，所述支撑外壳沿着周向等距设置多个，所述底板上设置有驱动