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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)??。　　汕??(shan)頭??(tou)灣??(wan)海??(hai)底??(di)隧??(sui)道??(dao)全??(quan)長??(chang)9781米??(mi)??，最??(zui)深??(shen)處??(chu)距?(ju)離??(li)海??(hai)面??(mian)98.5米?(mi)??，所??(suo)處??(chu)海??(hai)域??(yu)位??(wei)于??(yu)8度?(du)高??(gao)烈??(lie)度??(du)地??(di)震??(zhen)區(qū)??(qu)??，隧??(sui)道??(dao)共??(gong)需??(xu)要?(yao)穿??(chuan)越??(yue)17條??(tiao)斷??(duan)層??(ceng)破??(po)碎?(sui)帶?(dai)??，其??(qi)中??(zhong)??，盾??(dun)構(gòu)??(gou)段??(duan)既??(ji)要??(yao)穿??(chuan)越?(yue)長?(chang)距?(ju)離??(li)的??(de)堅(jiān)??(jian)硬??(ying)花??(hua)崗??(gang)巖??(yan)地?(di)層??(ceng)??，礦祝(kuang)山?(shan)段?(duan)又??(you)要??(yao)解?(jie)決?(jue)穿??(chuan)越??(yue)僅??(jin)2米??(mi)多??(duo)覆??(fu)巖??(yan)的??(de)軟??(ruan)弱??(ruo)地??(di)層??(ceng)難??(nan)題??(ti)??，建??(jian)設(shè)??(she)難??(nan)度?(du)大??(da)??，施??(shi)工??(gong)工??(gong)藝??(yi)復(fù)?(fu)雜??(za)??。??歷??(li)經(jīng)??(jing)5年??(nian)左??(zuo)右??(you)的?(de)時??(shi)間??(jian)建??(jian)設(shè)??(she)??，汕??(shan)頭??(tou)灣??(wan)海??(hai)底??(di)隧?(sui)道??(dao)為??(wei)我??(wo)國??(guo)高??(gao)鐵??(tie)海??(hai)域??(yu)隧?(sui)道??(dao)建??(jian)設(shè)??(she)積??(ji)累??(lei)了?(le)有??(you)益??(yi)經(jīng)??(jing)驗(yàn)??(yan)??。。