南水北调中线工程主要水力学问题研究

南水北调中线工程线路长、控制建筑物多,沿线地质条件复杂、地理环境和气候条件差异较大,其工程设计、建设及运行过程中的水力学问题突出且技术难度大。长江科学院经过几十年的系统研究,取得了丰硕的研究成果并成功运用于工程中。对其中的总干渠渠道糙率问题、节制闸流量计算公式、穿黄隧洞布置形式及水力特性、突发事件下渠道应急调度、冬季冰期输水等几个主要方面的水力学研究成果进行了阐述和总结,可为中线工程运行调度提供技术支持及供类似工程设计借鉴。

Hydraulics Research on the Mid-route of South to North Water Diversion Project

The mid-route of South-to-North Water Diversion Project has many control buildings and complex geological conditions as well as quite different geographical and meteorological conditions along the long line. The design, construction and operation of the project is faced with many technically difficult hydraulics problems. Through decades of research, the Yangtze River Scientific Research Institute has obtained fruitful research results, some of which were applied to the project successfully. In this paper, we expound and summarize several major achievements including canal roughness issues, sluice discharge formula, type of the yellow river crossing tunnel and its hydraulic characteristics, emergency dispatch, and water diversion in winter. It provides technical support for the operation of the middle route and also could be regarded as reference for the design of similar projects.