钦州湾湾口填海对茅尾海水交换能力的影响  

Effect of reclamation of Qinzhou bay mouth on water exchange in Maowei sea

作　　者：郭雅琼[1,2] 马进荣[1] 邹国良[1] 梁群 

机构地区：[1]南京水利科学研究院,港口航道泥沙工程交通行业重点实验室,江苏南京210024 [2]河海大学港口海岸与近海工程学院,江苏南京210098 [3]广西壮族自治区海洋局,广西南宁530012

出　　处：《水运工程》2016年第6期84-92,124,共10页Port & Waterway Engineering

摘　　要：以溶解态的保守物质作为示踪剂,建立茅尾海水交换平面二维数学模型,采用开边界污染物浓度梯度与内侧一致假定考虑了边界污染物回归,计算分析了钦州湾湾口两侧大范围填海工程对茅尾海纳潮量和水体半交换周期的影响情况。研究表明:龙门海峡通道顺畅是维持茅尾海纳潮量的关键因素,湾口宽度保持9.4 km以上茅尾海内纳潮量和水体半交换周期基本不受湾口填海工程影响。The two-dimensional mathematical model for water exchange in Maowei sea is established using the dissolved conservative material as the tracer. The pollutions are fed back at boundary under assumption that the gradient of pollutant concentration is the same both inside and outside the boundary. Based on the validation of the mathematical model, the effect on the volume of tidal prism and water change of Maowei sea is calculated and analyzed by the reclamation of the Qinzhou bay mouth. Results indicate that the width of Longmen strait is the key factor for keeping the volume of tidal prism of Maowei sea.The reclamation engineering in both sides of Qinzhou bay mouth keep the width over 9.4 km and has little effect on the water half-exchange period and the tidal prism of the Maowei sea.

关 键 词：钦州湾 茅尾海 填海工程 纳潮量 水交换 

分 类 号：P731.2[天文地球—海洋科学] U65[交通运输工程—港口、海岸及近海工程]