论文部分内容阅读
本文阐述了我所对长江葛洲坝枢纽泥沙问题的研究成果。这个工程是长江上兴建的第一个大型枢纽,没有先例可循,所有工程布置方案的确定及泥沙冲淤的预报,都需要通过泥沙模型试验加以解决。本试验自1974至1980年进行。根据泥沙运动理论和全沙模型试验资料,研究了葛洲坝重大的科学技术问题.例如旨在改善流态的南津关整治,减少淤积及利用水冲沙的防淤堤尺度和冲沙流量及冲沙时机,减少粗沙通过机组的电厂前布置和稳定主槽的河势方案等。现第一期工程已施工完毕,二期工程即将开工。
This article expounds the research results of the sediment problem in the Gezhouba junction in the Yangtze River. This project is the first major hub to be built on the Yangtze River. There is no precedent to follow. All project layout plans and silt scouring and sedimentation forecasts need to be resolved through sediment model tests. This test was conducted from 1974 to 1980. According to the theory of sediment movement and the experimental data of the whole sand model, the major scientific and technological problems of the Gezhouba Dam are studied, for example, the Nanjiguan regulation aimed at improving the flow regime, siltation reduction and silt embankment scale, Sand timing to reduce coarse sand through the unit’s power plant layout and stability of the main channel of the river scheme. Now the first phase of the project has been completed, the second phase is about to start.