多线船闸下游引航道通航水流条件及改善方案研究  

Study on navigation flow condition and improvement measures of downstream approach channel in multi-line ship lock

作　　者：东培华[1] 马洪亮[1] 尤薇[1] 董佳[1] 

机构地区：[1]江苏省交通规划设计院股份有限公司,南京210000

出　　处：《水道港口》2013年第5期420-424,共5页Journal of Waterway and Harbor

摘　　要：多线船闸下游引航道内反向水头过大引起的船闸安全问题引人关注。以江苏刘老涧三线船闸为例,建立了非结构网格下的平面二维水动力数学模型,计算了下游引航道在二、三线船闸不同泄水条件下的水流流态及一线船闸闸门处的反向水头。采用开挖隔堤的工程措施以缓解反向水头过大的问题,计算分析了不同下闸首至开口段长度、开口段长度和开口段底高程下的最大反向水头及最大横向流速特征值变化规律,为改善多线船闸下游引航道水流流态提供参考。The ship lock security problem caused by high reversal Water head in downstream approach channel is attractive. Taking the third line of Liulaojian ship lock in Jiangsu Province as an example, a 2D hydrodynamic mathematical model with unstructured grid was established in this paper. According to different discharge of the second line and the third line ship lock, the flow pattern was simulated, and reversal water head near the gate of the first line was also calculated. Excavation of diversion dike was used to decrease the high reversal water head. According to the reserved length of dike root, excavated length of dike and bottom elevation, the variation law of the maximum reversal water head and characteristics of the maximum velocity of cross flow were analyzed to give reference for improving downstream flow pattern of multi-line ship lock.

关 键 词：多线船闸 引航道 水流条件 数学模型 

分 类 号：U617[交通运输工程—船舶及航道工程] U641.1[交通运输工程—船舶与海洋工程]