黄骅港外航道寒潮风暴潮及大浪作用下泥沙骤淤数值模拟  

Numerical Simulation on Sudden Siltation Caused by Cold Storm Surge and Big Waves in out Channel of Huanghua Port

作　　者：章卫胜[1,2] 张金善[1,2] 赵红军[3,4] 李鑫[3,4] 

机构地区：[1]南京水利科学研究院河流海岸研究所,江苏南京210024 [2]港口航道泥沙工程交通行业重点实验室,江苏南京210024 [3]河海大学港口,海岸与近海工程学院,南京210098 [4]水文水资源与水利工程科学国家重点实验室,江苏南京210098

出　　处：《中国港湾建设》2010年第A01期32-37,共6页China Harbour Engineering

摘　　要：建立了多重嵌套网格的渤海湾风暴潮-波浪-泥沙运动数值模式,模拟了渤海湾2003年10月的一次强寒潮风暴潮。以黄骅港航道整治工程为例,模拟研究了航道整治工程前后的流场和泥沙场。研究发现,寒潮风暴潮期间,风暴潮引起的沿岸流使得黄骅港外航道跨越航道横流明显增强,为输沙提供了动力条件;黄骅港二期外航道在此次风暴中骤淤严重,口门外3～19 km段泥沙回淤在2.0 m以上;采用三期拦沙堤防护工程可以规避近岸破波区高含沙水流,外航道最大淤积区向外移,可以起到明显的防淤减淤作用。A multinest storm surge-wave-sediment model is applied to simulate strong storm surge caused by cold wave in Bohai Bay in Oct, 2003. The field of current and sediment of fore- and -aft regulating construction are calculated to analysis the effect of regulation. The results show that the alongshore current caused by storm surge strengthen the cross-channel component and that provided the impetus conditions for sediment transport. The siltation in the outer channel of Huanghua port in the second stage is very severe. For example, the thickness of＇slitting sediment in the area, 3 to 19 kilometer （away from the entrance of port） is over 2.0 meter. While the third stage dike for debris barrier is completed, the hyper-eoncentrated silt-laden flow offshore could be eluded, and the maximum deposition area goes out, thus the sediment siltation is reduced.

关 键 词：寒潮 数值模拟 粉沙质 骤淤 拦沙堤 减淤 

分 类 号：U617.6[交通运输工程—船舶及航道工程] P737.14[交通运输工程—船舶与海洋工程]