水科学进展2017，Vol.28Issue(1)：76-85,10.DOI:10.14042/j.cnki.32.1309.2017.01.009
闸下变动水位的船闸输水水力学计算
Hydraulics analysis of filling and emptying system for evaluating the impact of water level variation on downstream of ship locks
摘要
Abstract
To improve hydraulic analysis of filling and emptying system of ship locks that are located in strong tidal areas,a new hydraulic calculation method was developed.This method is based on the theoretical principles of ship lock's filling and emptying,considering the significant variation of water levels downstream of ship locks.This new hy draulic calculation method was used to analyze the Sanbao ship lock in Zhejiang province China,and evaluated the sensitivity of three factors:chamber area,initial water head,descending rate of downstream water level.The results showed that,when comparing to the analysis on constant water levels,the new calculation method revealed shorter fill ing time,lower peak flow and energy ratio.This study indicates that the new method can provide an appropriate evaluation of filling and emptying system on the impact of water level variation on downstream of ship locks.Findings from this study can be used to support technical design and operation of ship locks in strong tidal sea and estuary.关键词
船闸/输水系统/水力计算/变动水位Key words
ship lock/filling and emptying system/hydraulic analysis/variable water level分类
交通工程引用本文复制引用
杨元平,曹颖,杨利,李浙江..闸下变动水位的船闸输水水力学计算[J].水科学进展,2017,28(1):76-85,10.基金项目
国家自然科学基金资助项目(51379190) （51379190）
浙江省科技厅重大科技项目(2015C03003) （2015C03003）
The study is financially supported by the National Natural Science Foundation of China(No.51379190). （No.51379190）
