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學習快評丨qibao666888　　中?(zhong)新??(xin)網(wǎng)??(wang)汕??(shan)頭??(tou)3月??(yue)26日??(ri)電??(dian)(記??(ji)者??(zhe) 李??(li)怡??(yi)青??(qing))26日??(ri)廣??(guang)東??(dong)汕??(shan)頭??(tou)灣??(wan)海??(hai)底??(di)68米??(mi)深??(shen)處??(chu)??，隨??(sui)著??(zhe)“永??(yong)平??(ping)號??(hao)”盾??(dun)構?(gou)機??(ji)近??(jin)5層??(ceng)樓??(lou)高??(gao)的??(de)直??(zhi)徑??(jing)為??(wei)14.57m的??(de)刀?(dao)盤??(pan)破??(po)巖??(yan)而??(er)出??(chu)??。??標??(biao)志??(zhi)著??(zhe)世??(shi)界?(jie)首??(shou)座??(zuo)設??(she)計??(ji)時??(shi)速??(su)350公??(gong)里??(li)單?(dan)洞??(dong)雙??(shuang)線??(xian)高??(gao)鐵??(tie)海??(hai)底?(di)隧??(sui)道??(dao)——汕??(shan)汕??(shan)高??(gao)鐵??(tie)汕??(shan)頭??(tou)灣??(wan)海??(hai)底?(di)隧??(sui)道??(dao)成??(cheng)功??(gong)貫??(guan)通??(tong)???！　?jù)?(ju)介??(jie)紹??(shao)?，汕??(shan)頭??(tou)灣??(wan)海??(hai)底?(di)隧??(sui)道??(dao)全??(quan)長??(chang)9781米??(mi)?，橫??(heng)跨??(kua)汕??(shan)頭??(tou)灣??(wan)主??(zhu)航??(hang)道??(dao)海??(hai)域??(yu)?，洞??(dong)身??(shen)穿??(chuan)越??(yue)17處??(chu)斷??(duan)層?(ceng)破??(po)碎?(sui)帶??(dai)(含??(han)8處??(chu)活??(huo)動??(dong)斷??(duan)層??(ceng))?，建??(jian)設?(she)過??(guo)程??(cheng)中??(zhong)要?(yao)克??(ke)服??(fu)8級??(ji)高??(gao)烈??(lie)度??(du)地?(di)震??(zhen)、近??(jin)百??(bai)米??(mi)超??(chao)高??(gao)水??(shui)壓??(ya)、高??(gao)氯?(lv)鹽??(yan)侵??(qin)蝕??(shi)?，多??(duo)斷??(duan)層??(ceng)構??(gou)造??(zao)?，地??(di)層??(ceng)軟??(ruan)硬??(ying)不??(bu)均??(jun)、極??(ji)硬??(ying)巖??(yan)等??(deng)世??(shi)界??(jie)級?(ji)施??(shi)工??(gong)難??(nan)題??(ti)?，施?(shi)工??(gong)稍??(shao)有??(you)不??(bu)慎??(shen)?，極?(ji)易?(yi)引??(yin)發(fā)??(fa)海??(hai)水??(shui)滲?(shen)透??(tou)?，甚??(shen)至??(zhi)海??(hai)水??(shui)大??(da)量??(liang)涌??(yong)入??(ru)導??(dao)致??(zhi)隧??(sui)道??(dao)結??(jie)構??(gou)失??(shi)穩(wěn)??(wen)和??(he)坍??(tan)塌??(ta)廢??(fei)棄??(qi)等??(deng)風??(feng)險??(xian)?，安??(an)全??(quan)不??(bu)容??(rong)有??(you)失??(shi)??。??同??(tong)時??(shi)?，盾??(dun)構??(gou)機??(ji)在??(zai)高??(gao)達??(da)200MPa抗?(kang)壓??(ya)強?(qiang)度??(du)的??(de)極??(ji)硬?(ying)花??(hua)崗??(gang)巖??(yan)地??(di)層??(ceng)掘??(jue)進??(jin)?，施??(shi)工??(gong)難??(nan)度??(du)國??(guo)內(nèi)??(nei)外??(wai)罕??(han)見??(jian)?，被??(bei)國??(guo)鐵??(tie)集??(ji)團??(tuan)認??(ren)定??(ding)為??(wei)國??(guo)內(nèi)??(nei)在??(zai)建??(jian)風??(feng)險??(xian)最??(zui)高??(gao)、難??(nan)度??(du)最??(zui)大??(da)的??(de)隧??(sui)道?(dao)之??(zhi)一??(yi)??。為??(wei)此??(ci)?，工??(gong)程祝(cheng)建?(jian)設??(she)團??(tuan)隊??(dui)根??(gen)據(jù)??(ju)地??(di)質??(zhi)情??(qing)況?(kuang)?，采??(cai)用?(yong)陸??(lu)域??(yu)礦?(kuang)山??(shan)法?(fa)、海??(hai)域??(yu)礦?(kuang)山??(shan)法??(fa)、明??(ming)挖??(wa)敞??(chang)開??(kai)法??(fa)、明??(ming)挖??(wa)暗??(an)埋??(mai)法??(fa)、盾??(dun)構??(gou)掘??(jue)進??(jin)法??(fa)、盾??(dun)構??(gou)空??(kong)推??(tui)法??(fa)等?(deng)6種??(zhong)工??(gong)法??(fa)組??(zu)織?(zhi)隧??(sui)道??(dao)施?(shi)工??(gong)??。。