埋管式泄水口流量计算方法研究  

Calculation method for flow-off volume of underground discharge outlet

作　　者：田会静[1] 徐恩岳 秦亮[2] 

机构地区：[1]中交天津港航勘察设计研究院有限公司,天津300461 [2]中交天津航道局有限公司,天津300461

出　　处：《中国港湾建设》2017年第1期8-11,共4页China Harbour Engineering

基　　金：国家科技支撑计划课题项目(2014BAB16B03)

摘　　要：埋管式泄水口流量尚无成熟计算方法,针对此情况文中分析了圆管型泄水口均匀流及非均匀流、泥塘端淹没和非淹没不同状态下的水力参数计算公式,并结合工程实例分别对管线的输水能力、水面线、糙率、输水性能最佳充满度等进行了详细计算和分析,提出了淹没与非淹没两种情况的计算方法,为吹填排水管线的布置、吹填流失量的估算提供技术支撑。In view of the lack of flow-off volume calculation method on underground discharge outlet, we performed analysis on calculation formula of hydraulic parameters, including of the uniform flow and non-uniform flow at the circular tube discharge outlet, the submerged discharge and non-submerged discharge at the end of mud pot. Combined with the engineering examples, we calculated and analyzed the conveyance power of water, water surface curve, roughness, and optimal filling degree, put forward the calculation methods of submerged and non-submerged discharge. This paper has provided technical support for arranging discharge pipe and estimating flow-off volume.

关 键 词：埋管式泄水口 输水能力 自由出流 淹没出流 糙率 

分 类 号：U616.1[交通运输工程—船舶及航道工程]