文(wen)章來源(yuan)：中(zhong)國鐵路工程(cheng)總公司 發(fa)布時間：2010-05-08
4月28日，中鐵(tie)隧(sui)道(dao)施(shi)(shi)(shi)(shi)工(gong)(gong)的(de)西安地(di)(di)(di)(di)鐵(tie)二號線(xian)15標體(ti)（體(ti)育場(chang)）—小(xiao)（小(xiao)寨(zhai)）區(qu)間(jian)左線(xian)隧(sui)道(dao)順(shun)利(li)貫(guan)通(tong)(tong)。西安地(di)(di)(di)(di)鐵(tie)二號線(xian)15標體(ti)小(xiao)區(qu)間(jian)北起陜西省體(ti)育場(chang)站，沿長(chang)安路向南至小(xiao)寨(zhai)站，區(qu)間(jian)單線(xian)全長(chang)897.148米，采用暗(an)挖法(fa)施(shi)(shi)(shi)(shi)工(gong)(gong)，隧(sui)道(dao)下穿既(ji)有機(ji)構多(duo)，通(tong)(tong)過(guo)地(di)(di)(di)(di)層復(fu)雜，施(shi)(shi)(shi)(shi)工(gong)(gong)沉降控制及(ji)安全要(yao)求高(gao)。在工(gong)(gong)程施(shi)(shi)(shi)(shi)工(gong)(gong)中，針對該(gai)區(qu)間(jian)斷(duan)面變(bian)化多(duo)，工(gong)(gong)藝、工(gong)(gong)法(fa)復(fu)雜多(duo)變(bian)，工(gong)(gong)序(xu)轉換(huan)(huan)頻繁(fan)等制約施(shi)(shi)(shi)(shi)工(gong)(gong)進度的(de)因素，不斷(duan)細化施(shi)(shi)(shi)(shi)工(gong)(gong)措施(shi)(shi)(shi)(shi)，強(qiang)化安全質量控制，確保安全順(shun)利(li)地(di)(di)(di)(di)通(tong)(tong)過(guo)了南二環(huan)長(chang)安立交(jiao)橋、F6及(ji)F6地(di)(di)(di)(di)裂縫、環(huan)城暗(an)涵、涌(yong)水(shui)流砂困難地(di)(di)(di)(di)段(duan)、人(ren)行天橋樁(zhuang)基托(tuo)換(huan)(huan)等重大危險源(yuan)的(de)考驗，提前(qian)一個月完成(cheng)了區(qu)間(jian)隧(sui)道(dao)的(de)開挖初支任務，實現了隧(sui)道(dao)的(de)順(shun)利(li)貫(guan)通(tong)(tong)。