京唐港航道边滩实测横流分析

Analysis on observed crossflow at the beach of Jingtang waterway

针对唐山港京唐港区2014年8月—2015年4月航道边滩上的实测潮流资料,采用数理统计的方法对上述流速流向资料进行统计分析,并对横流流速和累积频率进行分析。分析结果表明,京唐港航道边滩上潮流主要为往复流,流向与岸线大致平行,流速集中在0.25~0.5 m/s;航道边滩上横流流速主要集中在0.25~0.5 m/s;挡沙潜堤堤顶挑流增大了潮流、横流的表层流速;航道边滩横流流速与累积频率有良好的对应关系,拟合曲线相关程度高,可为港区船舶调度或航道宽度设计等提供参考。

Based on the observed tidal current data at the beach of Jingtang waterway on August 2014 to April 2015, we analyzed the flow velocity and direction of tidal current with the method of mathematical statistics, and analyzed the velocity and cumulative frequency of crossflow. The results show that the tidal current on the beach of Jingtang waterway is mainly reciprocating flow, the flow direction roughly parallels to the shoreline, the velocity is concentrated in 0.25 to 0.5 m/s, the velocity ofcrossflow on the beach is mainly concentrated in 0.25 to 0.5 m/s, submerged breakwater mainly increase the velocity of tidal current and crossflow at the surface layer, the velocity of crossflow and cumulative frequency have good corresponding relationships, the correlation degree of fitting curve is high, and it can provide the reference for shop scheduling or channel width design in the port area.