文章(zhang)來源：中(zhong)國鐵路工程總公司 發布時間：2009-12-23
12月10日，中(zhong)(zhong)(zhong)鐵(tie)二局施(shi)(shi)工(gong)(gong)的龍廈(sha)鐵(tie)路控制(zhi)性工(gong)(gong)程(cheng)(cheng)上東(dong)山隧道中(zhong)(zhong)(zhong)部(bu)至出口段提(ti)前19天順利(li)貫通。上東(dong)山隧道總長4657米，其中(zhong)(zhong)(zhong)中(zhong)(zhong)(zhong)部(bu)至出口段長2555米。上東(dong)山隧道屬山區地(di)(di)貌(mao)，地(di)(di)質(zhi)(zhi)構造極為復雜，洞(dong)身(shen)穿過(guo)(guo)巖性分(fen)界接觸斷裂帶、地(di)(di)下水發(fa)育帶、淺埋軟弱(ruo)帶等不良地(di)(di)質(zhi)(zhi)帶，施(shi)(shi)工(gong)(gong)難度很大。項目部(bu)針對復雜地(di)(di)質(zhi)(zhi)條(tiao)件，不斷優(you)化施(shi)(shi)工(gong)(gong)設計，嚴格(ge)現場施(shi)(shi)工(gong)(gong)管理，對特殊地(di)(di)段及(ji)時調整施(shi)(shi)工(gong)(gong)方(fang)案，時刻抓好(hao)施(shi)(shi)工(gong)(gong)過(guo)(guo)程(cheng)(cheng)中(zhong)(zhong)(zhong)的安全質(zhi)(zhi)量工(gong)(gong)作，確保了工(gong)(gong)程(cheng)(cheng)順利(li)提(ti)前貫通。