三峡库区架空直立式码头新型结构型式及系靠船设施研究.pdf

摘要本文以重庆重大科技专项交通基础设施建设一重庆港大水位差深水码头设计、建设关键技术攻关与应用为科研课题,将重庆纳溪沟码头和果园二期码头作为实际工程,文章主要研究工作和成果如下: ①对三峡成库前后水文变化分析发现,成库后的水位使得传统的架空直立式码头建设中,水位大幅度抬高,一方面使得施工水位定得过高,增加码头造价; 另一方面,延长码头建设周期。为了适应水位,文章提出了墩柱梁板式码头结构和钢混结合的架空直立式码头结构。②针对三峡成库后水位差大、码头前沿大水深的现象,分析了两种能自动适应水位变化的系靠船设施:浮式系靠船设施和电磁自动靠泊装置,分析表明这两种靠船设施能自动随水位升降,能较好的解决传统大水位差码头采用分层系缆装置的缺点,但能否在三峡库区中(水位差30m以上)得到运用,还需进一步研究和论证。③针对目前库区架空直立式码头存在对靠船结构以及码头整体刚度要求大, 排架间距难以向更大的方向发展等缺点,提出了靠船排墩的靠船结构形式。分析表明,采用靠船排墩,船舶荷载主要作用在墩上,有利于增大码头排架间距,从而减少水下工作量,缩短码头建设工期。④根据实体墩和架空墩的特点,结合实际工程一重庆纳溪沟码头,提出了两种架空墩的方案。分析表明,架空墩的力学性能虽然不及实体墩,但其具有建筑材料省、施工时间短、施工便于向多样化方向发展,在三峡库区具有一定应用前景。关键字:三峡库区;施工水位;墩柱梁板式码头;浮式系靠船设施;电磁系泊装置;靠船排墩 ABSTRACT Asthesubject ofthestudy on thedesign ofChongqing Portgreat waterfluctuation deepwater wharf,which is themajor scientificandtechnologicalspecial transportation infrastructure ofChongqing“Eleventh Five-Year'’,based Onpracticalengineering about Naxigou terminals and orchards twoterminals The specific work thisarticlehas done arc foIIows: ①Analysis about hydrological changes before and after the Three Gorges Reservoir found thatwater pletion makes thewater levelsubstantially raisedwhen construct condition on the one handmakes theconstruction water levelset toohigh,increasing thepier cost;on the otherhand,extent thepier order toadapt towater level,this paperpresentspier beam ponents. ②In connection with the great diurnal water level range and deep water of quay,two berthing facilitieswhich callautomatically adapt towater levelchanges甜e analyzed-floating mooring berthing facilitiesand ic automatic berthing showed thatthese twoberthing facilitiesautomatically with thewater Canbebetter tosolve thedefectthattraditional leveldifference terminal stratifiedmooring whether they can be usedintheThree Gorges Reservoir(the water leveidifference more than30m),further study andverification a他 needed. ③In connectionwiththephenomenon thatSuspended Vertical havelarg