本文介绍了一种新型斜管——缺角正方形斜管,从水力半径、单位表面积的沉淀面积、制作斜管的单位体积材料耗量以及水力特性参数公式等方面,对该斜管与蜂窝形斜管作了分析比较,并对这两类斜管(各两种规格)进行了较长时间的小型对比试验.说明缺角正方形斜管具有较好的实用价值. This paper introduces a new type of inclined pipe, which is a square oblique pipe with missing corners, from the aspects of hydraulic radius, precipitation area per unit surface area, consumption per unit volume of material for making inclined pipes, and hydraulic parameter formulas, etc. The inclined tube was analyzed and compared, and the two kinds of inclined tubes (each of the two specifications) were subjected to a comparatively small test for a relatively long period of time. This shows that the corner-angled inclined tube has a good practical value.