右江鱼梁枢纽施工期通航水流条件改善措施

Improvement measures of navigation flow condition in construction period of Yuliang Hydro-junction Project

枢纽施工期的通航问题是施工总体战略布置、总工期和总造价的关键性课题,它影响着施工布置、工程量及工期安排。右江鱼梁枢纽利用缩窄的河床通航来解决一期施工期的通航问题,文中采用物理模型试验和自航遥控船模试验相结合的研究方法,分析了右江鱼梁枢纽一期工程施工期设计方案的通航水流条件,对设计方案下影响通航水流条件的各个因素进行总结,提出了一些改善水流条件的工程措施,基本解决了一期工程施工期的通航问题。

Navigation problem in construction period which has been a key point of general layout, total time limit and total cost, has great influence on the construction layout, engineering quantity and construction schedule. River bed contraction was used to solve the navigation problems in the 1 st stage construction period of Yuliang Hydro - junction Project. Based on the method of combining remote - controlled self- propelled ship model test with physical model test, the navigation flow condition in construction period of Yuliang Hydro - junction Project was analyzed. Each factor which influences the navigation flow condition was summarized. Then engineering measures for improving water flow condition are presented. Finally the navigation problem in construction period of the 1st stage project has been solved generally.