Tunnel buried pipe drainage structure

The utility model discloses a tunnel buried pipe drainage structure which comprises a tunnel lining, a groove is formed in the tunnel lining corresponding to a water leakage construction joint, a drainage half pipe is arranged in the groove, and a water collecting hole communicated with the drainage half pipe is formed in the tunnel lining corresponding to a leakage water outlet point. An electric tracing band used for heating drained water is arranged in the drainage half pipe. Underground water behind the masonry can be smoothly discharged; the drainage system is prevented from being frozen and blocked by arranging the electric tracing band and the heat preservation structure in a frost heaving area, smooth drainage in the pipeline is guaranteed, the structure is compact, and the occupied external space is small. 本实用新型公开了一种隧道埋管排水结构，包括隧道衬砌，所述隧道衬砌中对应渗漏水施工缝设有凹槽，凹槽内设有排水半管，隧道衬砌中对应渗漏出水点设有与排水半管相连通的集水孔；所述排水半管中设有用于对排水加热的电伴热带。其可将砌背后地下水顺畅排出；在有冻胀的地区通过设置电伴热带和保温结构避免排水系统结冰堵塞，保证管道内排水顺畅，并且结构紧凑，占用外部空间小。