并列双线船闸单侧闸墙长廊道输水系统布置及水力学模型试验研究

Layout and hydraulic model study of filling and emptying system with single wall culvert for parallel double-lane locks

长洲三线四线船闸为目前国内规模最大的单级船闸。针对其并列布置方案,提出单侧闸墙主廊道闸底横支廊道的输水系统形式。通过水力计算分析及1∶32的水工模型试验研究,提出输水系统的具体布置,确定船闸不同运行方式下的阀门开启方式,得到输水过程的相关水力特性,解决了单侧闸墙廊道布置下闸室水流分布不均的问题。研究表明:提出的输水系统布置是合理可行的,各水力特征值均满足规范和设计要求,且输水系统布置于两线船闸之间,便于管理,减小了工程量,并可减少船闸耗水量。研究成果可为巨型船闸设计及船闸节水研究提供借鉴。

Changzhou 3rd and 4th lane locks are the biggest single-step locks in China. Based on the parallel layout plan for these new locks, the filling and emptying system with single long culvert in the lock wall and lateral manifolds in the lock bottom has been put forward. By means of hydraulic analysis and model test （model scale 1：32）, the specific layout of the filling and emptying system and the valve＇s opening patterns under different operation mode have been determined, the hydraulic characteristics during lock filling and emptying have also been studied, the uneven flow distribution in lock chamber with single wall culvert layout has been well improved. The results indicate that the layout of the filling and emptying system is reasonable and practical; each of the hydraulic characteristics satisfies the designing requirements. The filling and emptying system which is laid out between the two locks is convenience for management and can reduce the work quantities, it also can save water due to the connecting culvert. The results can be used for the huge lock design and lock water saving study.