万吨级重力式码头沉箱和方块结构形式的比选与造价分析

Cost Analysis and Comparison Between Gravity Quay Caisson and Concrete Block Structure of 10 000DWT Berth

针对非洲某火山岛国海岸某港8000DWT散货泊位的重力式码头沉箱结构和方块结构形式比较,进行沉箱码头和方块码头2种结构型式方案的技术经济、造价分析和施工工艺特点对比。比选分析结果表明,随着水深的增加、码头结构断面加大,与沉箱结构相比,方块结构整体性不足的缺点越发凸显,万吨级码头工程重力式方案选用沉箱结构形式更为合理。

Comparison of the gravity caisson and concrete block quay structure of 10000 DWT bulk cargo berth on an Africavolcanic island off the coast. With theanalysis ofconstruction cost,technology economy, and construction process technologyof the contrast between gravity caisson and concrete block quay structure. Results shows that, with the increase of the water depth, wharf structural sectionincreaseconcomitantly, concrete block quay structureexposed the inadequacies in integrity and shortcomings increasinglycompared with the gravity caisson structure. Therefore, it is more reasonable to adoptgravity caissonstructure in 10000 DWT bulk cargo berthgravity wharf structure selection.