文章來(lai)源：中(zhong)國鐵(tie)路工程(cheng)總公司 發布時間(jian)：2009-12-23
12月10日，中(zhong)鐵(tie)二局施(shi)(shi)工(gong)(gong)(gong)的(de)龍廈(sha)鐵(tie)路(lu)控制(zhi)性工(gong)(gong)(gong)程(cheng)(cheng)(cheng)上東山隧(sui)(sui)道中(zhong)部至出(chu)口段提前19天順利(li)貫通。上東山隧(sui)(sui)道總長(chang)4657米，其(qi)中(zhong)中(zhong)部至出(chu)口段長(chang)2555米。上東山隧(sui)(sui)道屬山區(qu)地(di)(di)貌(mao)，地(di)(di)質構造(zao)極為復雜(za)(za)，洞身穿過巖性分界接觸斷裂(lie)帶(dai)(dai)、地(di)(di)下水發育(yu)帶(dai)(dai)、淺埋軟弱帶(dai)(dai)等不良地(di)(di)質帶(dai)(dai)，施(shi)(shi)工(gong)(gong)(gong)難度很大。項目部針(zhen)對復雜(za)(za)地(di)(di)質條件(jian)，不斷優化施(shi)(shi)工(gong)(gong)(gong)設計，嚴格現場施(shi)(shi)工(gong)(gong)(gong)管理，對特殊(shu)地(di)(di)段及(ji)時調整施(shi)(shi)工(gong)(gong)(gong)方(fang)案，時刻抓好施(shi)(shi)工(gong)(gong)(gong)過程(cheng)(cheng)(cheng)中(zhong)的(de)安(an)全質量(liang)工(gong)(gong)(gong)作，確(que)保(bao)了(le)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)順利(li)提前貫通。