三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 坐??(zuo)落??(luo)于??(yu)天??(tian)津??(jin)市??(shi)濱??(bin)海??(hai)新??(xin)區(qū)??(qu)塘??(tang)沽??(gu)街??(jie)的??(de)海?(hai)門??(men)大??(da)橋??(qiao)??，于??(yu)1985年??(nian)11月??(yue)建??(jian)成??(cheng)通??(tong)車?(che)??，是??(shi)我??(wo)國??(guo)目??(mu)前??(qian)開?(kai)啟??(qi)跨?(kua)度??(du)最??(zui)大??(da)、提??(ti)升?(sheng)高??(gao)度??(du)最??(zui)高??(gao)的??(de)垂??(chui)直??(zhi)提??(ti)升??(sheng)式??(shi)鋼??(gang)結??(jie)構??(gou)跨??(kua)河??(he)橋??(qiao)??。??海??(hai)門??(men)大??(da)橋??(qiao)總??(zong)長??(chang)550.1米??(mi)??，大??(da)橋??(qiao)閉??(bi)合??(he)時?(shi)凈??(jing)高??(gao)7米??(mi)??，開??(kai)啟??(qi)時??(shi)凈??(jing)寬??(kuan)60米?(mi)??，凈??(jing)空??(kong)高??(gao)31米??(mi)??，可??(ke)通??(tong)過??(guo)5000噸??(dun)海??(hai)輪??(lun)???！ 〈??(dai)凱?(kai)欣??(xin)接??(jie)受??(shou)記??(ji)者??(zhe)采?(cai)訪??(fang)表??(biao)示??(shi)??，海?(hai)門??(men)大??(da)橋??(qiao)每?(mei)日??(ri)定??(ding)時??(shi)開??(kai)啟??(qi)??，提??(ti)升??(sheng)高??(gao)度??(du)是??(shi)24米??(mi)??，提?(ti)升??(sheng)速??(su)度??(du)是??(shi)每??(mei)分??(fen)鐘??(zhong)9.6米??(mi)??，上??(shang)升?(sheng)、下??(xia)落??(luo)時??(shi)間??(jian)都??(dou)是??(shi)150秒??(miao)?。??大??(da)橋?(qiao)保??(bao)持??(chi)提??(ti)升??(sheng)的??(de)時??(shi)間??(jian)一??(yi)般??(ban)跟??(gen)通?(tong)行?(xing)的??(de)船??(chuan)的??(de)數(shù)??(shu)量??(liang)有??(you)關??(guan)??，時??(shi)間??(jian)短??(duan)的??(de)情??(qing)況??(kuang)下?(xia)??，來??(lai)往??(wang)船??(chuan)20分??(fen)鐘??(zhong)、半??(ban)小??(xiao)時??(shi)就??(jiu)能??(neng)通??(tong)行??(xing)??，規(guī)??(gui)定??(ding)大??(da)橋??(qiao)保??(bao)持??(chi)提??(ti)升??(sheng)最??(zui)長??(chang)時??(shi)間??(jian)為?(wei)1.5小??(xiao)時??(shi)?。
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