船闸下游引航道口门区急流碍航改善措施比选  

Comparison and selection of improvement measures for jet flow navigation obstruction in outlet area of shiplock downstream

作　　者：彭伟 冯小香[1] 普晓刚[1] 

机构地区：[1]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456

出　　处：《中国港湾建设》2017年第10期47-52,共6页China Harbour Engineering

摘　　要：已建船闸口门区大流量碍航问题广泛存在。研究以五强溪枢纽下游急流碍航问题为出发点,采用定床物理模型试验和遥控自航船模试验为技术手段,在对工程河段现状通航水流条件分析的基础上,从改善局部流速分布、减小口门区引流等角度,分别提出挖槽方案、导流墩方案、桩基透空式隔流堤方案和桩基透空式导流屏方案。通过各方案通航水流条件和船舶航行条件比选,创新性提出的桩基透空式导流屏方案可较好解决五强溪枢纽下游口门区通航条件改善难题,并已成功通过工程实践的检验。The problems of navigation obstruct in the outlet area of shiplock are widespread when discharge is great. Take thejet flow navigation obstruction downstream of Wuqiangxi hydropower station as the starting point, using the technology ofphysical model test and remote-control ship model test, on the basis of analyzing the navigation flow condition, we presentedthe programs such as excavate riverbed, build diversion pier,pile foundation open -type partition dikes and pile foundationsubmerged vanes to improve the local velocity distribution, and reduce the discharge of the outlet area of shiplock. By analyzingthe navigation flow condition and ship sailing conditions of each program, we put forward the innovative program of pilefoundation submerged vanes, which can improve the outlet area of shiplock navigation condition of Wuqiangxi hydropowerstation downstream, and was verified by engineering practice.

关 键 词：船闸口门区 导流墩 隔流堤 导流屏 通航条件 

分 类 号：U641[交通运输工程—船舶及航道工程]