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大宝山隧道是一座较长大的高速公路隧道，对隧道的防排水要求较高。该隧道的防排水系统，具有一定的代表性。论述了该防排水系统在施工和使用中的缺陷，并提出了一些设想和隧道衬砌结构防排水设计应遵循的途径。
Dabaoshan tunnel is a larger highway tunnel, the tunnel drainage requirements higher. The tunnel drainage system, has a certain representation. Discusses the defects in the construction and use of the drainage system, and puts forward some ideas and approaches to prevent drainage design of the tunnel lining structure.