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學習快評丨qibao666888　　據(jù)??(ju)介??(jie)紹??(shao)??，汕??(shan)頭??(tou)灣??(wan)海祝(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(gòu)??(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(jié)??(jie)構(gòu)?(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(gòu)??(gou)機秘(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??(cheng)建??(jian)設??(she)團??(tuan)隊??(dui)根?(gen)據(jù)??(ju)地??(di)質(zhì)?(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(gòu)??(gou)掘??(jue)進??(jin)法??(fa)、盾?(dun)構(gòu)??(gou)空??(kong)推??(tui)法??(fa)等??(deng)6種??(zhong)工??(gong)法祝(fa)組??(zu)織??(zhi)隧??(sui)道??(dao)施??(shi)工??(gong)???！　∧?(mu)前??(qian)??，在??(zai)建?(jian)汕??(shan)頭??(tou)南??(nan)至?(zhi)汕??(shan)頭??(tou)段??(duan)正??(zheng)線??(xian)長??(chang)度??(du)19.8公??(gong)里??(li)??，其?(qi)中??(zhong)汕??(shan)頭?(tou)灣??(wan)海??(hai)底??(di)隧??(sui)道??(dao)正??(zheng)是?(shi)該??(gai)段??(duan)重?(zhong)難??(nan)點??(dian)控??(kong)制??(zhi)性??(xing)工??(gong)程??(cheng)??。??。