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隧道治水是隧道设计、施工和养护中需要十分重视的问题之一,如果处理不好,便会产生种种有害的后果。在寒冻(严寒及多年冻土)地区修建隧道时,治水尤为关键。无论在国内还是在国外的寒冻地区,隧道内较为普遍地发生衬砌冻胀开裂、酥碎、剥落、挂冰,侧冰和线路冒水、积水、结冰等病害,严重威胁行车安全,降低隧道使用寿命,养护工作繁重,治理十分困难。因此,寒冻地区的隧道,不仅应有完整的防水与排水系统,还要保证隧道排水设备常年不发生结冰阻塞。
Tunnel water control is one of the most important issues in tunnel design, construction and maintenance. If not handled properly, it will have all the harmful consequences. Water control is especially critical when tunnels are built in freezing (frigid and permafrost) areas. Whether domestically or abroad in the frozen areas, the tunnel is more common occurrence of frost heaving cracking, crisp broken, spalling, hanging ice, side ice and line water, water, ice and other diseases, a serious threat to traffic safety, Reduce the service life of the tunnel, maintenance work is heavy, the management is very difficult. Therefore, the tunnel in the frozen area should not only have a complete waterproof and drainage system, but also to ensure that the tunnel drainage equipment will not clog and block all year round.