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學習快評丨qibao666888　　西??(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)??。　　廣??(guang)南??(nan)聯(lián)?(lian)絡??(luo)線??(xian)是??(shi)連??(lian)接??(jie)廣??(guang)州??(zhou)站??(zhan)與??(yu)廣??(guang)州??(zhou)南??(nan)站??(zhan)的??(de)重??(zhong)要??(yao)鐵??(tie)路??(lu)干??(gan)線??(xian)??，建??(jian)成??(cheng)后?(hou)將?(jiang)極??(ji)大?(da)緩??(huan)解??(jie)廣??(guang)州??(zhou)樞??(shu)紐??(niu)的??(de)運??(yun)輸??(shu)壓??(ya)力??(li)??，提??(ti)升??(sheng)區(qū)??(qu)域??(yu)交??(jiao)通??(tong)通??(tong)行??(xing)能??(neng)力??(li)?。??西??(xi)塱?(塱)隧??(sui)道?(dao)作??(zuo)為??(wei)該??(gai)項?(xiang)目??(mu)的??(de)關??(guan)鍵??(jian)節(jié)??(jie)點??(dian)??，其??(qi)順?(shun)利??(li)推??(tui)進??(jin)為??(wei)全??(quan)線??(xian)貫??(guan)通??(tong)奠??(dian)定??(ding)了??(le)堅??(jian)實?(shi)基??(ji)礎??(chu)?。(完??(wan))。