Tunnel energy absorption yielding supporting system and method

The invention relates to the technical field of tunnel construction, and provides a tunnel energy absorption yielding supporting system and method.The system comprises a flexible concrete spraying layer, a flexible reinforcing mesh, a steel frame mesh, a damping anchor rod and a concrete layer, the flexible concrete spraying layer is used for covering a tunnel rock wall, the flexible reinforcing mesh covers the flexible concrete spraying layer, and the steel frame mesh covers the flexible concrete spraying layer; the steel frame net covers the flexible reinforcing mesh, the damping anchor rod sequentially penetrates through and is connected with the steel frame net, the flexible reinforcing mesh and the flexible concrete spraying layer and then is anchored in the tunnel rock wall, and the concrete layer covers the damping anchor rod, the steel frame net and the flexible reinforcing mesh. Basalt fibers and coarse polypropylene fibers are doped in the flexible concrete spraying layer, and the flexible reinforci