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　　2003年??(nian)建??(jian)成??(cheng)通??(tong)車??(che)的?(de)外?(wai)環(huán)??(huan)隧??(sui)道??(dao)是??(shi)中??(zhong)國?(guo)首??(shou)條??(tiao)采??(cai)用??(yong)沉?(chen)管??(guan)法??(fa)施??(shi)工??(gong)的??(de)特??(te)大??(da)型??(xing)越??(yue)江??(jiang)隧??(sui)道??(dao)??，曾??(zeng)是??(shi)上??(shang)海??(hai)北??(bei)部??(bu)地??(di)區(qū)??(qu)唯??(wei)一??(yi)的??(de)大??(da)型??(xing)貨??(huo)運??(yun)車??(che)輛??(liang)越??(yue)江??(jiang)通??(tong)道??(dao)??。??據(jù)??(ju)統(tǒng)??(tong)計?(ji)??，外??(wai)環(huán)??(huan)隧??(sui)道?(dao)歷??(li)年??(nian)車??(che)流??(liu)量??(liang)峰?(feng)值??(zhi)近??(jin)3000萬?(wan)輛??(liang)??，為??(wei)通??(tong)車??(che)初??(chu)期??(qi)的??(de)2.4倍??(bei)??，大??(da)型??(xing)貨??(huo)車?(che)(含??(han)集??(ji)卡??(ka))約?(yue)占?(zhan)流??(liu)量??(liang)的??(de)80%??。多??(duo)年?(nian)來??(lai)由??(you)于??(yu)超??(chao)負?(fu)荷?(he)運??(yun)營??(ying)等?(deng)各??(ge)種??(zhong)原??(yuan)因??(yin)??，隧??(sui)道??(dao)留??(liu)下??(xia)沉??(chen)管??(guan)接??(jie)頭??(tou)滲??(shen)漏??(lou)、路??(lu)面??(mian)損??(sun)壞??(huai)等??(deng)“歲??(sui)月?(yue)痕??(hen)跡??(ji)”???！　≡??(gai)隧??(sui)道??(dao)是??(shi)全??(quan)國??(guo)首??(shou)個?(ge)實??(shi)現(xiàn)??(xian)“預(yù)??(yu)養(yǎng)??(yang)護??(hu)”的??(de)隧??(sui)道??(dao)??，工??(gong)程??(cheng)團??(tuan)隊??(dui)可??(ke)以??(yi)預(yù)??(yu)測??(ce)隧??(sui)道??(dao)未?(wei)來??(lai)的??(de)運??(yun)行??(xing)狀??(zhuang)況??(kuang)??，提??(ti)前??(qian)研?(yan)判??(pan)故??(gu)障??(zhang)與??(yu)養(yǎng)??(yang)護??(hu)需??(xu)求??(qiu)??，實??(shi)時??(shi)監(jiān)??(jian)測??(ce)與??(yu)反??(fan)饋??(kui)養(yǎng)??(yang)護??(hu)效?(xiao)果??(guo)??，輔??(fu)助??(zhu)科??(ke)學??(xue)養(yǎng)??(yang)護??(hu)決??(jue)策??(ce)??，為??(wei)城??(cheng)市?(shi)基??(ji)礎(chǔ)??(chu)設(shè)??(she)施??(shi)全??(quan)周??(zhou)期??(qi)安??(an)全??(quan)運??(yun)維??(wei)提??(ti)供??(gong)智??(zhi)慧??(hui)解??(jie)決??(jue)方??(fang)案??(an)??。??。