山地城市与平原城市排水管网设计的区别

Difference in Design of Drainage Systems between Hilly Cities and Plain Cities

结合重庆市具体工程实例,简要分析了山地城市与平原城市排水管网设计的区别,从雨水设计流量的计算、排水管线敷设方式、坡度和流速以及排水构筑物等多方面进行了论述,重点分析了排水设计参数的选择、确定,并指出山地城市排水管线平面与纵断面设计的特点,介绍了山地城市为地块开发后不影响水系连通而设置的临时或永久排水构筑物,并指出了山地城市排水设计应考虑的主要因素及相应的解决措施。

Based on the project cases in Chongqing, the difference in design of drainage systems between hilly cities and plain cities was analyzed. The design of the drainage system was expounded in terms of the rain flow calculation, pipe laying modes, gradient and flow velocity, drainage structures and so on. The selection and determination of the design parameters were analyzed, and the characteristics of the plan and profile design of drainage systems in hilly cities were pointed out. The temporary or permanent plots drainage structures designed to adapt the original ecological water system after the development of in hilly cities were introduced. The main factors and the corresponding measures in the design of drainage systems in hilly cities were proposed