This paper based on the water project ( the transfusion of water from the south to the north ) analyzes the carbonization properties systematically , which is one of the properties of concrete durability . its result can be a references to expansion the application range of the high performance concrete , strengthening the research of the high performance concrete 本文采用的是以掺加高效减水剂、一级粉煤灰、引气剂及低水胶比方式复合而成的高性能混凝土，结合南水北调中线工程对其抗碳化性能进行全面系统分析，研究结果可以作为进一步推广高性能混凝土应用的参考。
The comparative analysis is made firstly , which shows that the truss arch aqueduct can be built on the weak foundation and is also satisfied with the demand for large span length and the great discharge ability , so the type of aqueduct is a better for the project . then the finite element program ( super sap93 ) is applied to the structural analysis of the space structure 首先通过对常用渡槽结构型式的对比分析，阐明该渡槽是一种可在软弱地基上修建的、能满足大跨度、大流量要求、适用于南水北调中线工程的排水建筑物，然后运用有限元分析程序supersap93对桁架拱空间结构进行了受力分析。
