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學習快評丨qibao666888　　中?(zhong)新??(xin)網(wǎng)??(wang)廣?(guang)州??(zhou)3月??(yue)25日??(ri)電??(dian) (郭??(guo)軍??(jun) 呂??(lv)翀??(chong) 代??(dai)儷??(li)娟?(juan))3月??(yue)24日??(ri)??，由??(you)廣??(guang)鐵?(tie)集??(ji)團??(tuan)廣??(guang)州??(zhou)工??(gong)程??(cheng)建??(jian)設??(she)指??(zhi)揮??(hui)部??(bu)建??(jian)設??(she)、中??(zhong)鐵??(tie)十??(shi)一??(yi)局?(ju)承??(cheng)建??(jian)的??(de)新??(xin)建??(jian)廣??(guang)州??(zhou)站??(zhan)至??(zhi)廣??(guang)州??(zhou)南??(nan)站??(zhan)聯(lián)??(lian)絡??(luo)線??(xian)西?(xi)塱??(塱)隧??(sui)道??(dao)出??(chu)口?(kou)明??(ming)挖??(wa)段??(duan)主?(zhu)體??(ti)結(jié)??(jie)構(gòu)??(gou)順??(shun)利??(li)封??(feng)頂??(ding)??。??這??(zhe)一??(yi)重??(zhong)要??(yao)節(jié)??(jie)點??(dian)的??(de)完??(wan)成??(cheng)??，標??(biao)志??(zhi)著??(zhe)廣??(guang)南??(nan)聯(lián)??(lian)絡??(luo)線??(xian)項??(xiang)目??(mu)建??(jian)設??(she)取??(qu)得??(de)階??(jie)段??(duan)性??(xing)勝??(sheng)利??(li)??，為??(wei)隧??(sui)道??(dao)出??(chu)口??(kou)段?(duan)順??(shun)利??(li)轉(zhuǎn)?(zhuan)入??(ru)大??(da)盾??(dun)構(gòu)??(gou)施??(shi)工??(gong)奠??(dian)定??(ding)了??(le)堅??(jian)實??(shi)基??(ji)礎(chǔ)??(chu)???！　∥??(xi)塱??(塱)隧??(sui)道??(dao)出??(chu)口??(kou)明??(ming)挖??(wa)段??(duan)全??(quan)長??(chang)660米??(mi)?，最??(zui)大??(da)開??(kai)挖??(wa)深??(shen)度??(du)達??(da)25米??(mi)??。??該??(gai)段??(duan)采??(cai)用??(yong)明??(ming)挖??(wa)順??(shun)作??(zuo)法??(fa)施??(shi)工??(gong)?，工??(gong)程??(cheng)圍??(wei)護??(hu)結(jié)??(jie)構(gòu)??(gou)形??(xing)式??(shi)復??(fu)雜??(za)?，地??(di)層??(ceng)敏??(min)感??(gan)?，基??(ji)坑??(keng)開??(kai)挖??(wa)范??(fan)圍??(wei)內(nèi)??(nei)淤??(yu)泥??(ni)質(zhì)??(zhi)地??(di)層??(ceng)分??(fen)布??(bu)占??(zhan)比??(bi)超??(chao)過??(guo)70%?，施??(shi)工??(gong)難??(nan)度??(du)極??(ji)大??(da)??。。