高水头省水船闸水工结构及输水系统研究

长江上游地区水头高、流速快、水位变幅大，对通航建筑物提出了较高的要求，采用升船机形式较难解决运量小、高地震烈度对塔柱的横向位移要求等问题；多级船闸形式又面临耗水量巨大、下游引航道流态不佳等问题。省水船闸是解决上述问题的有效结构形式，但在我国的应用经验较为有限。以三峡新通道工程为依托，从省水船闸的工作原理出发，分别对结构选型、省水池布置、结构高程及尺度确定、输水系统的计算流程和参数确定方法等关键问题进行研究，并通过结构核算、输水效率、省水量3个方面说明省水船闸方案的可行性及其相对于梯级船闸的优越性。

Research on structure and water-conveyance system in high water head water-saving ship lock

Most of the rivers in the upper Yangtze River have high water head,rapid flow,large variation of water level.Serving as a navigation structure,ship lift cannot satisfy great traffic volume and lateral displacement limitation of tower column under earthquake,while traditional multistage ship lock has to deal with a series of problems:huge water consumption,poor flow regime in lower lock approach,etc.Water saving ship lock can effectively solve the problems above,however not enough experience has been gained domestically.Based on the water-saving ship lock scheme of the new channel of Three Gorges project,from the perspective of working principle of water-saving ship lock,this article sdudies structure selection,layout of water basins,structure elevation and scale are discussed in detail.Structure stability,conveyance efficiency of the scheme are analyzed,and superiority comparison to cascade ship lock scheme is expounded.