  4月(yue)19日，隨著“追夢號(hao)”盾(dun)構機破土而出，由(you)中鐵(tie)十(shi)五(wu)局(ju)城軌公(gong)司承建的沈陽地鐵(tie)3號(hao)線(xian)南塔站至文(wen)富(fu)路站盾(dun)構區間實現雙線(xian)貫通。
南-文區間(jian)(jian)長(chang)約(yue)(yue)733米(mi)，其中盾構段長(chang)約(yue)(yue)551米(mi)，礦(kuang)山段長(chang)約(yue)(yue)183米(mi)，區間(jian)(jian)線間(jian)(jian)距12-17米(mi)，線路縱(zong)斷面呈“V”字坡形，最(zui)大(da)(da)坡度25‰。該區間(jian)(jian)屬(shu)于長(chang)距離(li)小轉彎半徑，隧(sui)道易(yi)整體偏(pian)(pian)移且軸線控制難(nan)度大(da)(da)，蛇形糾偏(pian)(pian)工(gong)作量大(da)(da)，在掘進的前390環需連續下穿多個(ge)風險源，對掘進的精準性要求極高，施工(gong)風險難(nan)度大(da)(da)。
施(shi)(shi)(shi)工(gong)(gong)(gong)前，沈陽地(di)鐵集團與項目部緊盯一線(xian)，提(ti)前籌劃，精(jing)確分析工(gong)(gong)(gong)程(cheng)重難點(dian)，針對(dui)施(shi)(shi)(shi)工(gong)(gong)(gong)過程(cheng)中存在的(de)刀盤(pan)結泥餅、地(di)質狀(zhuang)況復雜(za)、盾構施(shi)(shi)(shi)工(gong)(gong)(gong)噴涌、下穿(chuan)多處(chu)風險源等問題制定了(le)(le)詳細的(de)施(shi)(shi)(shi)工(gong)(gong)(gong)方案和技(ji)術(shu)措施(shi)(shi)(shi)。在施(shi)(shi)(shi)工(gong)(gong)(gong)過程(cheng)中，始終堅持(chi)領(ling)導(dao)帶班制度，落實班前教(jiao)育，加(jia)強技(ji)術(shu)培訓，確保盾構施(shi)(shi)(shi)工(gong)(gong)(gong)更加(jia)安(an)全，管(guan)片拼裝更加(jia)規范化、標(biao)準化。經過不懈(xie)努力，項目先后克(ke)服了(le)(le)小空(kong)間(jian)、超低溫、小曲線(xian)大(da)坡度等始發難題，實現了(le)(le)洞門無滲水、地(di)面(mian)及周邊(bian)環境(jing)安(an)全的(de)目標(biao)，順利實現區間(jian)雙(shuang)線(xian)貫通(tong)。
沈陽地鐵3號線南塔(ta)站至文(wen)富路站盾構(gou)區間實現雙線貫通