Construction method for open cutting tunnel

摘要

The present invention is to provide an installation tunnel construction method that can be constructed in the tunnel entrance to match the surrounding landscape by implementing the greening of the shaft cut surface early in building a driveway tunnel or railway tunnel in the mountainous area, In constructing a mountain tunnel with a section tunnel, a vertical plane is formed at the shaft position of the main tunnel and connected to the vertical plane to construct an open tunnel with an arch structure, filling soil on and around the open tunnel, and planting vegetation. After landscaping, excavate this tunnel to complete the tunnel.