一、前言我国中小型泵站量大面广,其集水池布置有正向进水和侧向进水两大类。国内外对正向进水的集水池已有一定的研究成果,但对侧向进水的集水池的研究虽然国外的成果不少,但国内还是较少的。侧向进水水流条件复杂,在实际工程中,有不少中小型泵站采用侧向进水,其中侧向斜坡式集水池具有一定的代表性和典型性。因此,我们对这种形式进行了较系统的试验研究,探讨侧向进水的水流特性与泵的效率 I. Introduction China’s large and medium-sized pump station is large and wide, and its cistern is equipped with two types of water inflow and lateral inflow. At home and abroad, there is a certain amount of research results on the water collecting basin which is going to water inflow. However, the research on water collecting basins on the side is quite a few in China, but there are still few in China. Side inlet water flow conditions are complex, in practical projects, there are many small and medium-sized pumping station using lateral water, including side slope cistern has a certain representation and typical. Therefore, we conducted a systematic experimental study of this form to investigate the characteristics of the water flow in the lateral inflow and the efficiency of the pump