成子河船闸引航道与泄洪河道交汇区域通航水流条件与改善措施研究  

Flow characteristics and channel security research of Chengzi river ship lock approach and flood discharge channel intersection area

作　　者：丁坚[1] 吴腾[1] 邵雨辰 王霄[3] 郭淮[3] 曹昌志 

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,南京210098 [2]苏交科集团股份有限公司,南京210098 [3]淮安市水利勘测设计研究院有限公司,淮安223005

出　　处：《水道港口》2016年第2期166-169,共4页Journal of Waterway and Harbor

摘　　要：引航道与泄洪河道交汇区由于水流流向与航行进出闸方向角度较大,常产生较大横向流速,影响船舶安全进出闸。文章建立成子河船闸引航道与泄洪河道交汇区平面二维数学模型,模拟研究该区域通航水流条件及其改善措施。研究结果表明:无工程措施条件下,废黄河下泄流量为10 a一遇洪水时,成子河引航道与泄洪河道交汇区表面最大横向流速大于0.3 m/s,不能满足通航要求。当废黄河与引航道交汇区的上游设置导流墙时,导流墙将来流分为左右两股水流,向下游的主流流向逐渐与下游引航道平行,交汇区的水流受导流墙阻挡流速减小迅速,能满足通航要求。The transverse velocity in the intersection area of approach channel and flood discharge channel isusually quite large, which will affect the safety of the ship out of the gate. Taking the Chengzi river ship lock as thestudy object, 2D-mathematical model of Chengzi river was built in this paper. Based on the model, the flow patternin the intersection area of approach channel and flood discharge channel and its improvement measures were simu-lated. The result indicates that the transverse velocity in the intersection area is larger than 0.3 m/s without any engi-neering measures. The flow condition can not meet the requirements of navigation. In order to decrease the trans-verse velocity, a guide wall was set in the upstream intersection area in this paper. By the engineering measure, thetransverse velocity is reduced to lower than 0.3 m/s, which meets the requirements of navigation.

关 键 词：船闸 引航道 数学模型 导流墙 泄洪道 交汇区 

分 类 号：U617[交通运输工程—船舶及航道工程] O242.1[交通运输工程—船舶与海洋工程]