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學(xué)習(xí)快評(píng)丨qibao666888　　在??(zai)海??(hai)底??(di)隧??(sui)道??(dao)實(shí)??(shi)現(xiàn)??(xian)貫??(guan)通??(tong)后?(hou)??，盾??(dun)構(gòu)??(gou)機(jī)??(ji)要??(yao)再??(zai)向??(xiang)前??(qian)空??(kong)推??(tui)約??(yue)463米??(mi)??，到??(dao)達(dá)??(da)指??(zhi)定??(ding)位??(wei)置??(zhi)后??(hou)再?(zai)進(jìn)??(jin)行??(xing)拆?(chai)機(jī)??(ji)??。??這??(zhe)也??(ye)將??(jiang)是??(shi)國(guó)??(guo)內(nèi)??(nei)首??(shou)次??(ci)實(shí)??(shi)施??(shi)超??(chao)大??(da)直??(zhi)徑??(jing)盾??(dun)構(gòu)??(gou)海??(hai)底??(di)洞??(dong)內(nèi)??(nei)拆??(chai)解?(jie)??。　　上??(shang)午??(wu)??，隨??(sui)著??(zhe)最??(zui)后??(hou)一?(yi)層??(ceng)巖??(yan)體??(ti)成??(cheng)功??(gong)破??(po)除??(chu)??，“永??(yong)平??(ping)號(hào)??(hao)”盾??(dun)構(gòu)??(gou)機(jī)??(ji)順??(shun)利??(li)露??(lu)出??(chu)??，意??(yi)味??(wei)著??(zhe)汕??(shan)頭??(tou)灣??(wan)海?(hai)底??(di)隧??(sui)道??(dao)正??(zheng)式??(shi)貫?(guan)通??(tong)??。??盾??(dun)構(gòu)??(gou)機(jī)??(ji)的??(de)直??(zhi)徑??(jing)達(dá)??(da)到?(dao)14.57米??(mi)??，相??(xiang)當(dāng)??(dang)于??(yu)5層??(ceng)樓??(lou)左?(zuo)右??(you)的??(de)高??(gao)度??(du)??。。