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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　據(jù)??(ju)介??(jie)紹??(shao)??，G3銅??(tong)陵??(ling)長??(chang)江??(jiang)公??(gong)鐵??(tie)大??(da)橋??(qiao)具??(ju)有?(you)“跨??(kua)度??(du)大??(da)、荷??(he)載?(zai)重??(zhong)、結(jié)??(jie)構(gòu)??(gou)新??(xin)”的??(de)特??(te)點??(dian)??。??大??(da)橋?(qiao)路??(lu)線??(xian)全??(quan)長??(chang)11.88公??(gong)里??(li)??，其??(qi)中??(zhong)跨??(kua)江??(jiang)主??(zhu)橋??(qiao)長??(chang)1505米?(mi)??，主??(zhu)跨??(kua)長??(chang)988米??(mi)??，是?(shi)世?(shi)界??(jie)首??(shou)座??(zuo)雙??(shuang)層??(ceng)斜??(xie)拉?(la)——懸??(xuan)索??(suo)協(xié)??(xie)作??(zuo)體??(ti)系??(xi)大??(da)橋??(qiao)??，建??(jian)設(shè)??(she)難??(nan)度??(du)大??(da)??，先??(xian)導(dǎo)??(dao)索??(suo)順??(shun)利??(li)過??(guo)江??(jiang)??，為??(wei)后??(hou)續(xù)??(xu)主??(zhu)纜??(lan)及??(ji)鋼??(gang)梁??(liang)架??(jia)設(shè)??(she)等??(deng)上??(shang)部??(bu)結(jié)??(jie)構(gòu)??(gou)主??(zhu)體??(ti)施??(shi)工??(gong)奠??(dian)定?(ding)了??(le)堅??(jian)實??(shi)基??(ji)礎(chǔ)??(chu)???！　?jù)?(ju)中??(zhong)鐵??(tie)大??(da)橋??(qiao)局??(ju)G3大??(da)橋??(qiao)項??(xiang)目??(mu)部?(bu)一??(yi)分??(fen)部??(bu)總??(zong)工??(gong)程??(cheng)師??(shi)宋??(song)海??(hai)濤??(tao)介??(jie)紹??(shao)??，本??(ben)次??(ci)先??(xian)導(dǎo)??(dao)索??(suo)過??(guo)江??(jiang)采??(cai)用??(yong)水??(shui)上??(shang)拖??(tuo)輪??(lun)牽??(qian)引??(yin)法??(fa)??。??在??(zai)蕪??(wu)湖??(hu)海??(hai)事??(shi)局??(ju)7艘??(sou)海??(hai)巡??(xun)艇??(ting)的??(de)全??(quan)程?(cheng)護??(hu)航??(hang)下??(xia)??，由??(you)一??(yi)艘??(sou)1200匹??(pi)馬??(ma)力??(li)的??(de)拖??(tuo)輪??(lun)將??(jiang)先??(xian)導(dǎo)??(dao)索??(suo)從??(cong)北??(bei)岸??(an)拖??(tuo)拽??(zhuai)至??(zhi)南??(nan)岸??(an)與?(yu)引??(yin)索??(suo)相??(xiang)連??(lian)??，最??(zui)后??(hou)啟??(qi)動??(dong)南??(nan)北??(bei)主??(zhu)塔??(ta)的??(de)卷??(juan)揚?(yang)機??(ji)將??(jiang)導(dǎo)?(dao)索??(suo)最?(zui)低?(di)點??(dian)提??(ti)升??(sheng)至??(zhi)離??(li)江??(jiang)面??(mian)75米??(mi)的??(de)高??(gao)空??(kong)??。整??(zheng)個??(ge)過??(guo)程?(cheng)中??(zhong)需??(xu)避??(bi)免??(mian)先?(xian)導(dǎo)??(dao)索??(suo)沉??(chen)底??(di)被??(bei)水??(shui)下??(xia)障??(zhang)礙?(ai)物??(wu)纏??(chan)繞??(rao)等??(deng)危??(wei)險??(xian)??，所??(suo)以??(yi)在??(zai)牽??(qian)引??(yin)過??(guo)程??(cheng)中??(zhong)卷??(juan)揚??(yang)機??(ji)的??(de)速??(su)度??(du)和?(he)駁??(bo)船??(chuan)的??(de)速??(su)度??(du)需??(xu)嚴(yán)??(yan)格??(ge)把??(ba)控??(kong)??。

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