文章來源：中國鐵(tie)路工程總公司 發布時間：2010-05-08
4月(yue)28日，中(zhong)(zhong)鐵(tie)隧(sui)道施(shi)工(gong)的(de)西(xi)安(an)(an)地鐵(tie)二號線(xian)(xian)15標體（體育(yu)場）—小(xiao)（小(xiao)寨）區間(jian)左線(xian)(xian)隧(sui)道順利貫(guan)通(tong)。西(xi)安(an)(an)地鐵(tie)二號線(xian)(xian)15標體小(xiao)區間(jian)北起陜(shan)西(xi)省體育(yu)場站，沿(yan)長安(an)(an)路向南(nan)至小(xiao)寨站，區間(jian)單線(xian)(xian)全(quan)長897.148米，采(cai)用暗挖法(fa)施(shi)工(gong)，隧(sui)道下穿既有(you)機構多(duo)，通(tong)過地層復雜，施(shi)工(gong)沉降控制及安(an)(an)全(quan)要求高。在工(gong)程(cheng)施(shi)工(gong)中(zhong)(zhong)，針對該區間(jian)斷面變(bian)化(hua)(hua)多(duo)，工(gong)藝、工(gong)法(fa)復雜多(duo)變(bian)，工(gong)序轉換頻繁(fan)等制約施(shi)工(gong)進度的(de)因素(su)，不(bu)斷細(xi)化(hua)(hua)施(shi)工(gong)措施(shi)，強化(hua)(hua)安(an)(an)全(quan)質量控制，確(que)保安(an)(an)全(quan)順利地通(tong)過了南(nan)二環(huan)長安(an)(an)立交(jiao)橋、F6及F6地裂縫(feng)、環(huan)城暗涵(han)、涌水流(liu)砂困難地段、人行天橋樁基托換等重大危險源的(de)考驗，提(ti)前一個(ge)月(yue)完成了區間(jian)隧(sui)道的(de)開(kai)挖初支任務，實現了隧(sui)道的(de)順利貫(guan)通(tong)。