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小区排水管网属市政排水管的起始段,一般流量较小,常常达不到自净流速。设计时考虑的重点不在于防冲,而应是防淤。设计秒流量发生的可能性很小,如用它来设计小区排水管网,就可能使管网的坡度过小,发生淤积。因此,作者对小区排水管网设计,提出了先按最大日最大时流量计算,再用设计秒流量满管复核的建议。
Community drainage network is the beginning of the municipal drainage pipe, the general flow is small, often can not reach the self-purification flow rate. The focus of design considerations is not on anti-scouring, but anti-silting. The possibility of the design of the second-second flow rate is very small. If it is used to design the community drainage network, the slope of the pipeline network may be too small and siltation may occur. Therefore, the author of the drainage network design of the community, put forward the calculation of the maximum daily maximum flow rate, and then use the design of second full flow of review recommendations.