淤泥质海岸环抱式港池口门布置方案研究

发布时间：2018-05-07 13:17

本文选题：淤泥质海岸 + 港池布置　；参考：《水利水运工程学报》2014年01期

【摘要】：以资料分析为基础,利用数学模型计算分析的手段,针对当地旋转流和黏性泥沙的运动特性,从水流、泥沙角度对连云港徐圩港区港池布置方案中的口门位置、口门宽度和布置形式进行了论证。分析认为,由于岸滩坡度较缓,大风天破波带影响范围较广,同时被波浪掀起的细颗粒泥沙可被潮流远距离输送,因此从减小泥沙回淤角度来看,港池应采用双环抱形式,而口门应布置在连云港理论基准面高程-5 m(破波区)以外,以此可以降低破波带内悬浮泥沙进入港池和外航道的可能性。同时分析论证认为,初期方案口门不宜过窄,以减小口门的水流强度;口门采用"八字"型布置,可以提高口门航道船舶航行和近口门泊位靠离泊的安全性。上述港池布置方案建议已被设计院接受并在实施方案中体现,可供类似港口布置方案借鉴参考。
[Abstract]:On the basis of data analysis, by means of mathematical model calculation and analysis, according to the motion characteristics of local rotational flow and viscous sediment, from the point of view of water flow and sediment, the entrance position in the layout of harbor pool in Xuxu Port area of Lianyungang is analyzed. The width and layout of the gate are demonstrated. The analysis shows that because of the gentle slope of the shoreline, the wide influence of the windy wave breaking zone and the fact that the fine sediment caused by the wave can be transported by the tidal current at a long distance, the harbor pool should adopt the form of double entrainment from the point of view of reducing the silt back to silt. The entrance should be arranged outside the theoretical datum elevation of Lianyungang (breaking zone), so as to reduce the possibility of suspended sediment entering the harbor pool and the outer channel in the broken wave zone. At the same time, it is concluded that the initial scheme should not be too narrow in order to reduce the flow intensity of the entrance, and the safety of navigation and berthing of the berth near the gate can be improved by adopting the "eight characters" arrangement of the entrance. The above proposal has been accepted by the design institute and reflected in the implementation plan, which can be used as reference for similar port layout scheme.
【作者单位】：江苏省铁路办公室;南京水利科学研究院港口航道工程泥沙交通行业重点实验室;河海大学港口海岸与近海工程学院;
【基金】：国家863计划资助项目(2012AA112509)
【分类号】：U653.3;TV148

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