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　　沿??(yan)江??(jiang)干??(gan)線??(xian)公??(gong)路??(lu)是??(shi)長??(chang)江??(jiang)經(jīng)??(jing)濟(jì)??(ji)帶??(dai)綜?(zong)合?(he)立??(li)體??(ti)交??(jiao)通??(tong)走??(zou)廊??(lang)的??(de)重??(zhong)要??(yao)組?(zu)成??(cheng)部??(bu)分?(fen)??。?據(jù)??(ju)交??(jiao)通??(tong)運(yùn)??(yun)輸??(shu)部??(bu)公?(gong)路??(lu)局?(ju)介??(jie)紹??(shao)?，截??(jie)至?(zhi)去??(qu)年??(nian)底??(di)?，長??(chang)江??(jiang)經(jīng)?(jing)濟(jì)??(ji)帶??(dai)區(qū)??(qu)域??(yu)公??(gong)路??(lu)網(wǎng)?(wang)總??(zong)里??(li)程??(cheng)達(dá)??(da)244.6萬??(wan)公??(gong)里??(li)?，其??(qi)中?(zhong)干??(gan)線??(xian)公??(gong)路??(lu)總??(zong)里??(li)程??(cheng)達(dá)?(da)30.9萬??(wan)公??(gong)里??(li)?，高??(gao)速??(su)公??(gong)路??(lu)通??(tong)車??(che)里??(li)程??(cheng)約??(yue)7.3萬?(wan)公??(gong)里??(li)??。橫??(heng)貫??(guan)東??(dong)西?(xi)的??(de)沿??(yan)江??(jiang)高??(gao)速??(su)公??(gong)路??(lu)主??(zhu)通??(tong)道??(dao)已??(yi)初??(chu)步?(bu)形??(xing)成??(cheng)?，已??(yi)建??(jian)成??(cheng)通??(tong)車??(che)里??(li)程??(cheng)超??(chao)過?(guo)3500公??(gong)里??(li)?，建?(jian)成??(cheng)率??(lv)達(dá)??(da)80%???！　≡??(zen)么??(me)辦??(ban)？??G3銅??(tong)陵??(ling)長??(chang)江??(jiang)公??(gong)鐵??(tie)大??(da)橋??(qiao)在??(zai)設(shè)?(she)計(jì)??(ji)中??(zhong)??，將??(jiang)斜??(xie)拉??(la)橋??(qiao)和??(he)懸??(xuan)索??(suo)橋??(qiao)兩??(liang)種??(zhong)橋??(qiao)型??(xing)有??(you)機(jī)??(ji)結(jié)??(jie)合??(he)??，既??(ji)保??(bao)留??(liu)了?(le)斜??(xie)拉?(la)橋??(qiao)剛??(gang)度?(du)大??(da)的??(de)優(yōu)??(you)勢??(shi)??，又??(you)利??(li)用??(yong)了??(le)懸??(xuan)索??(suo)橋??(qiao)跨??(kua)越??(yue)能??(neng)力??(li)強(qiáng)??(qiang)的??(de)特??(te)點(diǎn)??(dian)??。??同?(tong)時(shí)?(shi)??，通??(tong)過??(guo)采??(cai)用??(yong)交??(jiao)叉?(cha)合??(he)龍??(long)方??(fang)案??(an)??，節(jié)??(jie)省??(sheng)3到??(dao)6個(gè)??(ge)月??(yue)工??(gong)期??(qi)??，既??(ji)實(shí)??(shi)現(xiàn)??(xian)了??(le)技?(ji)術(shù)??(shu)與??(yu)工??(gong)期??(qi)的??(de)雙??(shuang)重??(zhong)優(yōu)??(you)化??(hua)??，也?(ye)成??(cheng)就??(jiu)了??(le)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)??。。