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學(xué)習(xí)快評丨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??(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)??！　?月??(yue)26日?(ri)??，我??(wo)國??(guo)高??(gao)速??(su)鐵?(tie)路??(lu)網(wǎng)?(wang)沿??(yan)海??(hai)通??(tong)道??(dao)的??(de)重??(zhong)要??(yao)組??(zu)成??(cheng)部??(bu)分??(fen)——汕??(shan)汕??(shan)高??(gao)鐵?(tie)迎??(ying)來??(lai)新??(xin)進(jìn)?(jin)展??(zhan)：汕??(shan)頭??(tou)至??(zhi)汕??(shan)頭??(tou)南??(nan)段??(duan)關(guān)??(guan)鍵??(jian)控??(kong)制??(zhi)性??(xing)工??(gong)程??(cheng)汕??(shan)頭??(tou)灣??(wan)海??(hai)底??(di)隧??(sui)道??(dao)成?(cheng)功??(gong)貫??(guan)通??(tong)??，這??(zhe)也??(ye)是??(shi)我??(wo)國??(guo)首??(shou)座??(zuo)設(shè)?(she)計(jì)??(ji)時(shí)??(shi)速??(su)350公??(gong)里??(li)、單??(dan)洞??(dong)雙??(shuang)線??(xian)的??(de)高??(gao)鐵??(tie)海??(hai)底??(di)隧??(sui)道??(dao)??。??。