单级省水船闸水级计算和影响因素探讨

Water level calculation and influencing factors of single-step lock with water saving basins

省水池水位高程及工作水头计算是省水船闸水级计算的重要内容,影响因素众多。推导建立了综合船闸总水头、上下游水位变化、省水池数量和面积、剩余水头等因素的单级省水船闸省水池水位和作用水头计算公式。根据公式分析了上下游水位变幅、省水池级数和省水池面积等对省水池水位高程和作用水头的影响。最后结合某60 m单级船闸,计算对比不同方案各级省水池水位和作用水头,提出了合理的水级划分方案。

During the water level design process of lock with water saving basins(WSB),it s an important part that to determine the water level and head of the WSB,and there are many influencing factors in the process.This paper derives and establishes calculation formulas for evaluating the water level and the water head of the single step lock with WSB,which integrates the total head of ship lock,the upper and lower stream water level variation,the number of the WSB levels and area of the WSB,and the remaining head.On the basis of formulas,the influence of factors such as the upper and lower stream water level variation,the number of the WSB levels and the area of the WSB on the water level and the water head of the WSB are analyzed.Finally,the water levels and water heads of difference WSB schemes are calculated and compared in a 60 m single-level ship lock,and a reasonable water level scheme of WSB is proposed.