文章來源(yuan)：中國鐵(tie)路工程(cheng)總(zong)公司 發(fa)布時間：2009-12-23
12月10日，中鐵二局施工(gong)(gong)(gong)(gong)(gong)的龍廈鐵路控制性工(gong)(gong)(gong)(gong)(gong)程(cheng)上東(dong)(dong)山(shan)隧道(dao)中部(bu)(bu)至出口(kou)段(duan)提(ti)前19天順利貫通。上東(dong)(dong)山(shan)隧道(dao)總(zong)長4657米(mi)，其中中部(bu)(bu)至出口(kou)段(duan)長2555米(mi)。上東(dong)(dong)山(shan)隧道(dao)屬山(shan)區地貌，地質(zhi)構(gou)造(zao)極為復雜，洞(dong)身穿過(guo)巖(yan)性分界接觸斷(duan)裂帶(dai)、地下水發育帶(dai)、淺埋軟弱帶(dai)等不良地質(zhi)帶(dai)，施工(gong)(gong)(gong)(gong)(gong)難度很大(da)。項(xiang)目部(bu)(bu)針對(dui)復雜地質(zhi)條件，不斷(duan)優化施工(gong)(gong)(gong)(gong)(gong)設計，嚴格(ge)現場施工(gong)(gong)(gong)(gong)(gong)管(guan)理，對(dui)特(te)殊(shu)地段(duan)及時調整施工(gong)(gong)(gong)(gong)(gong)方案，時刻(ke)抓好施工(gong)(gong)(gong)(gong)(gong)過(guo)程(cheng)中的安全(quan)質(zhi)量工(gong)(gong)(gong)(gong)(gong)作，確保了工(gong)(gong)(gong)(gong)(gong)程(cheng)順利提(ti)前貫通。