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學(xué)習(xí)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(gòu)?(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(biāo)??(biao)志??(zhi)著??(zhe)世??(shi)界??(jie)首??(shou)座??(zuo)設(shè)??(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)??。　　據(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(shè)??(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(dǎo)??(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(fēng)??(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??(ji)在?(zai)高??(gao)達(dá)??(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(jìn)??(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(rèn)??(ren)定??(ding)為??(wei)國??(guo)內(nèi)??(nei)在祝(zai)建??(jian)風(fēng)??(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(shè)?(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(jìn)?(jin)法??(fa)、盾??(dun)構(gòu)??(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)??。。