Tunnel supporting structure and method

The invention provides a tunnel supporting structure and method, and relates to the technical field of tunnel supporting. The supporting structure comprises a first anchor cable, a second anchor cable and a steel support. The number of the first anchor cables is multiple, and the first anchor cables are arranged between the tunnel parallel adit and the tunnel main hole; the second anchor cable is arranged on the top of the tunnel main hole and the inner wall of the side, away from the tunnel parallel guide, of the tunnel main hole. The bent shape of the steel support is the same as the bent shape of the section of the tunnel main hole, and the steel support is arranged on the wall face of the tunnel main hole in an attached mode. The technical scheme has the beneficial effect that the supporting strength of the tunnel with the complex structure is improved. 本发明提供了一种隧道支护结构和支护方法，涉及隧道支护技术领域。该支护结构包括：第一锚索、第二锚索和钢支架；所述第一锚索设置为多个，所述第一锚索设置于所述隧道平导和所述隧道主洞之间；所述第二锚索设置于所述隧道主洞顶部和远离所述隧道平导一侧内壁；所述钢支架弯曲形状与所述隧道主洞剖面弯曲形状相同，所述钢支架贴合设