三峡船闸下游引航道不稳定流试验研究

Experimental Study on Unsteady Flow of Downstream Approach Channel from Locks of Three Gorges Project

三峡工程船闸泄水、汛期大坝泄洪及枯水期电站日调节泄水等对通航的影响是需要重点研究的问题之一。阐述厂第五级船闸主辅廊道联合运行的方式，研究了各级通航流量与辅廊道向引航道内泄水引起的不稳定流对升船机口门及船闸人字门处波高的影响强度。结果表明，通过采取工程措施，是可以解决船闸泄水对升船机和船闸人字门运行的影响。

Effect of lock emptying in the Three Gorges Project to navigation is one of many study problems.This paper addresses the mode of combined operation in main and auxiliary culverts for the fifthstep lock,and the effect of the wave hilght of the different categories of navigable discharges and theunsteady flow caused by auxiliary culvert discharging into approach channel on ship lift and miter gateof lock is studied.Results show that effect of lock emptying on ship lift and miter gate of lock operation may be solved by adopting suitable engineering measures.