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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　杭??(hang)州??(zhou)灣??(wan)跨??(kua)海??(hai)鐵??(tie)路??(lu)橋??(qiao)是??(shi)南??(nan)通??(tong)至??(zhi)寧??(ning)波??(bo)高??(gao)鐵??(tie)關(guān)??(guan)鍵??(jian)控??(kong)制??(zhi)性??(xing)工??(gong)程??(cheng)??，采??(cai)用??(yong)無??(wu)砟??(zha)軌??(gui)道??(dao)??，設(shè)??(she)計??(ji)時??(shi)速??(su)350公??(gong)里??(li)??，全??(quan)長??(chang)29.2公??(gong)里??(li)??，共??(gong)有??(you)北??(bei)、中??(zhong)、南??(nan)三??(san)座??(zuo)航??(hang)道??(dao)橋?(qiao)和??(he)跨??(kua)大??(da)堤??(di)、海??(hai)中?(zhong)、淺??(qian)灘?(tan)區(qū)??(qu)引?(yin)橋??(qiao)??，屬??(shu)超??(chao)長??(chang)大??(da)的??(de)高??(gao)速??(su)鐵??(tie)路?(lu)橋??(qiao)梁??(liang)集??(ji)群??(qun)工??(gong)程?(cheng)??。??其??(qi)中??(zhong)北??(bei)航??(hang)道??(dao)橋??(qiao)主??(zhu)跨??(kua)為??(wei)450米??(mi)??，是??(shi)世??(shi)界??(jie)最??(zui)大??(da)跨??(kua)度??(du)無??(wu)砟??(zha)軌??(gui)道??(dao)雙??(shuang)塔??(ta)雙??(shuang)索??(suo)面?(mian)鋼??(gang)箱??(xiang)-鋼??(gang)桁??(heng)組??(zu)合?(he)梁??(liang)斜??(xie)拉??(la)橋??(qiao)；中??(zhong)航??(hang)道??(dao)橋??(qiao)主??(zhu)跨??(kua)為??(wei)2×448米?(mi)??，為?(wei)世??(shi)界?(jie)最??(zui)大??(da)跨??(kua)度??(du)無??(wu)砟?(zha)軌??(gui)道??(dao)三??(san)塔??(ta)斜??(xie)拉??(la)橋??(qiao)；南??(nan)航??(hang)道??(dao)橋??(qiao)主??(zhu)跨??(kua)為??(wei)364米??(mi)??。　　首??(shou)個??(ge)主??(zhu)塔?(ta)墩??(dun)樁??(zhuang)基??(ji)昨??(zuo)天??(tian)下??(xia)午??(wu)施??(shi)工??(gong)完??(wan)成??(cheng)

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