三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)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(jié)??(jie)構(gòu)??(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(shí)??(shi)凈??(jing)高??(gao)7米??(mi)??，開??(kai)啟??(qi)時(shí)??(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(shí)??(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(shí)??(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(shí)??(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(guān)??(guan)??，時(shí)??(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(shí)??(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(shí)??(shi)間??(jian)為?(wei)1.5小??(xiao)時(shí)??(shi)??。
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