澧河渡槽是南水北调中线总干渠上规模较大的渠、河交叉建筑物之一,槽墩采用桩基基础,其河床段地基为上硬下软的地层结构。设计中就基桩的持力层和桩径问题作了深入研究,采用缩短桩长、加大桩径的方案,较好地协调了桩体和基础承载力与变形之间的关系,合理的布置使渡槽桩基工程量显著减少。主题词:渡槽设计;灌注桩;方案选择;基础设计;南水北调中线工程 The Huanghe Aqueduct is one of the large-scale canal and river crossings on the main canal of the Middle Route of South-to-North Water Diversion Project. The foundation of the channel piers is a pile foundation, and the foundation of the riverbed section is a stratum structure that is hard and soft. In the design, the pile foundation and pile diameter of foundation pile are studied in depth. The scheme of shortening the length of pile and increasing the diameter of pile is adopted, and the relationship between pile foundation and foundation bearing capacity and deformation is well coordinated. The layout of the aqueduct pile significantly reduced the amount of engineering. Subject terms: aqueduct design; bored pile; scheme selection; basic design; mid-south water transfer project