PIANC Smart Rivers 2022

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The ship lock with water saving basins can store part of water during the operation, which has the outstanding advantage of saving water resources. At the same time, the water-saving ship lock can divide the total water head into stages, significantly reduce the operating head of each stage, which can provide technical conditions for simplifying the shiplock’s filling＆emptying system and improving the operating conditions of lock's valves. It also provides an idea for solving the problem of high head ship lock construction in alpine and gorge areas of southwest China. For ship lock with high water head and large water level variation, the layout of the saving basins and the division of water level are very important. They determine the overall layout, operation efficiency and safety performance of the ship lock. What needs more attention is that with the increase of water head and water level variation, the classification arrangement of water-saving ship lock will become very complex. Therefore, based on the Baishi water-saving ship lock project(60m-class), the analysis and calculation research are carried out in this paper. First of all，the influence laws of key factors such as water-saving rate, water level variation, water saving pool area and water head on water level division are obtained. On this foundation, a reasonable water level classification scheme for 60m-class ship lock project is proposed. Through a large number of simulation calculations, the hydraulic characteristics of ship lock under different operating conditions are obtained, and the feasibility of ship lock layout scheme is demonstrated. 
The research results can provide direct technical support for Baishi shiplock project, and provide reference for the design and construction of similar water-saving shiplock projects.

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