市区河道排水是解决城市区域性排涝问题的基础设施,其规模大小,取决于区域性排涝的设计标准。由于本市系平原感潮河网地区,市区河道接纳暴雨入流后排水,还受到外河水位的影响。因此,确定其规模时,需要考虑外河潮位的重现期组合问题。现就下列问题予以商榷。 Urban river drainage is to solve the problem of urban drainage problems of infrastructure, its size, depending on the design standards for regional drainage. As the city of the Department of the tidal river network in the plains, the urban river to admit stormwater inflow after drainage, but also by the river water level. Therefore, when determining its scale, it is necessary to consider the combination of recurrence periods of the tide of the river. We are now discussing the following issues.