三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 據(jù)??(ju)了??(le)解??(jie)??，先??(xian)導??(dao)索??(suo)是??(shi)一??(yi)根??(gen)長??(chang)2000米??(mi)、直??(zhi)徑??(jing)22毫??(hao)米?(mi)的??(de)高??(gao)強??(qiang)度??(du)鋼??(gang)絲?(si)繩??(sheng)??。?“先??(xian)導??(dao)索??(suo)過??(guo)江??(jiang)后??(hou)??，將??(jiang)形??(xing)成??(cheng)牽?(qian)引??(yin)系??(xi)統(tǒng)??(tong)??。牽??(qian)引??(yin)系??(xi)統(tǒng)?(tong)是??(shi)G3大??(da)橋??(qiao)上??(shang)部??(bu)結??(jie)構??(gou)施?(shi)工?(gong)的??(de)重??(zhong)要??(yao)組??(zu)成??(cheng)部??(bu)分??(fen)??，主??(zhu)要??(yao)用??(yong)于??(yu)架??(jia)設??(she)貓??(mao)道??(dao)(相??(xiang)當??(dang)于??(yu)空??(kong)中??(zhong)作??(zuo)業(yè)??(ye)平??(ping)臺??(tai))和??(he)主??(zhu)纜??(lan)???！敝??(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)副??(fu)總??(zong)工??(gong)程??(cheng)師??(shi)鄒??(zou)端?(duan)說??(shuo)??，“下??(xia)一??(yi)步??(bu)??，我??(wo)們??(men)將??(jiang)利??(li)用??(yong)先??(xian)導?(dao)索??(suo)來??(lai)回??(hui)拉??(la)拽??(zhuai)牽??(qian)引?(yin)??，將??(jiang)一??(yi)根??(gen)根??(gen)貓??(mao)道??(dao)繩??(sheng)拉??(la)過??(guo)江??(jiang)??，搭??(da)起??(qi)空??(kong)中??(zhong)跨??(kua)江??(jiang)施??(shi)工??(gong)‘棧??(zhan)橋?(qiao)’??，為??(wei)主祝(zhu)纜??(lan)索??(suo)股??(gu)架??(jia)設??(she)提??(ti)供??(gong)條??(tiao)件??(jian)??。” 據(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??(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??(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?(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??(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??(yan)格??(ge)把??(ba)控??(kong)?。
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