长沙理工大学学报（自然科学版）2016，Vol.13Issue(1)：56-61,6.
大源渡下游口门区通航水流条件改善措施试验
Experimental research on improvement measures of navigable flow condition at downstream entrance area of Dayuandu navigation
摘要
Abstract
After the expansion of the second-line ship lock in Dayuandu navigation-power junction, the flow condition at the downstream entrance area of approach channel will become complicated and will impact safe navigation of ship or fleets.In order to improve the flow condition and make the surface velocity at the entrance area suitable to the requirements of the specification,based on fully collecting geological and hydrological data,the overall hydraulic model test is carried out,in-cluding digging the downstream river combined with arranging navigation structures.According to relevant materials and experiment data,the effect produced by the change of the terrain before and after digging,and arranging leading dike and diversion piers on water flow regime is emphatically analyzed,along with describing the mechanism of decreasing recirculation and oblique flow at the downstream entrance area.The results showed that the combination of river digging with naviga-tion structures can effectively improve the flow condition at entrance area of Dayuandu navigation, and it will also provide reference for the similar engineering design.关键词
航电枢纽/模型试验/引航道口门区/河道疏挖/导流墩Key words
Navigation-power junction/model test/the entrance area of approach channel/river digging/diversion piers分类
建筑与水利引用本文复制引用
刘晓平,徐大彬,李祥,林宇健..大源渡下游口门区通航水流条件改善措施试验[J].长沙理工大学学报（自然科学版）,2016,13(1):56-61,6.基金项目
湖南省交通科技项目(201027) （201027）
