南水北调东线工程刘山泵站进水流态整体模型试验研究

为确保南水北调东线工程刘山闸站的安全稳定运行，进行了刘山泵站进水流态整体模型试验研究工作．通过整体模型试验发现，刘山泵站原设计方案前池面层的大回旋流动诱发了进水流道进口前的吸气旋涡；修改方案采用调整刘山泵站清污机桥位置、压缩前池面层回旋流动范围的方法，在闸、站并列布置的条件下，有效地遏制了前池内的大回旋流动，消除了进水流道进口前的吸气旋涡。

Modelling inflow patterns for Liushan Pumping Station in South-to-North Water Transfer Project

To ensure safe and stable operation of the Liushan Pumping Station and the sluice, considerable modelling work has been done for trying to reveal inflow patterns of the Liushan Pumping Station. During modelling, aspiration eddies appeared to have been caused by large surface rotating currents in front of the intake of Liushan Pumping Station according to the original design solution of its forebay. Through improving the solution by relocating its raking machine and reducing the limits of water surface rotating movement in the forebay, the above-mentioned large surface rotating currents were effectively restricted and the aspiration eddies eliminated in case of parallel arrangement of the sluice and the pumping station.