Tunnel linear structure optimization method based on equivalent lighting concept

The invention provides a tunnel linear structure optimization method based on an equivalent lighting concept, comprising a tunnel body, wherein the side walls of an inlet end and an outlet end of thetunnel body extend outward to form an extension section with curvature P; A lighting shaft is arrange at that top of the outlet section and the inlet section of the tunnel, the lighting shaft locatedat the outlet section is arranged at 1/2 of the distance between the lighting lamp nearest to the outlet section and the outlet section, The daylighting shaft located at the inlet section is arrangedat 1/2 of the distance between the lighting lamp nearest to the inlet section and the inlet section, and the daylighting shaft located at the outlet section and the inlet section is located on the longitudinal centerline at the top of the tunnel. Under the premise of ensuring the safe and comfortable lighting operation environment of the tunnel, the supplementary lighting by using solar energy after reducing the lighting sy