港区雨水重力淹没出流排水安全性分析

目前港区雨水排放方式多依靠重力自流排放,当受纳水体水位高于排出口管顶(渠顶)高程时,受纳水体就会倒灌雨水管网减缓港区雨水排放速度和流量,港区即存在被水淹的危险。结合工程案例,运用水力学知识对港区雨水采用重力淹没出流措施保证港区不受水淹提供理论分析。

Safety analysis of harbor rainfall drown out gravity flow drainage

At present, drainage area mostly depends on the gravity emission. When the water level is higher than the top elevation of the export tube, the containing water will flow backward into the rain pipes so as to slow down the drainage speed and volume, and thus the port area will risk the danger of flooding. Based on an engineering practice, this paper carries out a theoretical analysis of the gravity drown out drainage measures for the harbor rainfall to prevent the harbor from being flooded by the rainfall.