Compound roof country rock supporting construction of coal road

Compound roof country rock supporting construction of coal road, including first stage supporting construction, second stage supporting construction and phase III supporting construction, first stagesupporting construction includes lateral wall supporting construction and top supporting construction, lateral wall supporting construction includes the lateral wall metal mesh, the first pallet and second stock, the vertical setting of lateral wall metal mesh covers on the lateral wall of tunnel, it is inboard that the first pallet is located the lateral wall metal mesh, the second stock is perpendicular with the lateral wall metal mesh, second stock one end and the first pallet fixed connection, the other end extends to the tunnel outside, and be equipped with anchor agent between second stock and the tunnel lateral wall wall body, top supporting construction includes top metal net, first steel band and first stock, and the top metal net covers at the top of roadway face, and first steelband is located top metal