Tunnel drainage system

The utility model discloses a tunnel drainage system, include: article two, longitudinal drainage ditch, many hoop drain pipes, two are access to respectively in hoop drain pipe both ends the longitudinal drainage ditch is with water flow guide the longitudinal drainage ditch, the center escape canal, its edge the length in tunnel pre -buried in in the middle of the tunnel, wherein, longitudinal drainage link up too much a sub - escape canal with center escape canal intercommunication, and by the tunnel both sides toward the third side to, sub - escape canal bottom is the slope and sets up downwards, wherein, along the length direction in tunnel, set gradually a plurality of drainage device in the left and right sides in tunnel respectively, the utility model discloses simple structure cancarry out comprehensively drainage on a large scale, has fine drainage effect to can also prevent ditch dregs deposit jam. 本实用新型公开了种隧道排水系统，包括：两条纵向排水沟；多条环向排水管；所述环向排水管两端分别通向两条所述纵向排水沟，以将水流导向所述纵向排水沟；中心排水沟，其沿所述隧道的长度预埋于所述隧道中间；其中，所