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我国地区广阔,气候差异较大,降雨特征与雨量分布也很不均匀。不少地区雨量很集中,往往形成暴雨。为了及时排泄这些雨水,需在城市或工矿企业建立相当庞大的雨水管道系统。因此,如何在设计中满足规定技术条件下,尽量降低雨水管道系统的基建费用是很重要的。重力流雨水管道系统的传统设计方法是根据分区的雨水迳流量,分段计算管道的直径和坡度,决定其标高与敷设深度等参数,凭经验对之进行适当调整后进行设计的。设
China has a vast area with large differences in climate, and rainfall characteristics and rainfall distribution are also very uneven. In many areas, rainfall is very concentrated and heavy rains often form. In order to drain these storms in a timely manner, it is necessary to establish a fairly large rainwater pipe system in cities or industrial and mining enterprises. Therefore, it is very important to reduce the infrastructure costs of the rainwater piping system as far as possible under the specified technical conditions in the design. The traditional design method of gravity flow rainwater piping system is based on the sub-zone of rainwater flow, segmented calculation of the diameter and slope of the pipeline, to determine its elevation and laying depth and other parameters, with the experience of appropriate adjustments after the design. Assume