文章來源：中國(guo)鐵路工程(cheng)總公(gong)司 發布時間：2010-10-20
近日，中國鐵路工程總公司所屬中鐵五局承建的國家重點水利樞紐工程——新疆恰甫其海大坂隧洞工程提前5個月完工。
新(xin)疆恰(qia)甫(fu)其(qi)海綜(zong)合(he)利(li)(li)用水(shui)利(li)(li)樞紐(niu)工(gong)(gong)(gong)(gong)程(cheng)(cheng)是一個集控(kong)灌、防洪、發電、漁業、觀光(guang)為一體的(de)國家重點水(shui)利(li)(li)樞紐(niu)工(gong)(gong)(gong)(gong)程(cheng)(cheng)。其(qi)中大(da)坂隧洞全(quan)長8100米(mi)，該(gai)(gai)隧洞集溶(rong)洞、涌水(shui)、斷層(ceng)、涌泥于一體，地(di)質結構復(fu)雜，施工(gong)(gong)(gong)(gong)難度大(da)，列全(quan)線第二長大(da)隧洞，是新(xin)疆恰(qia)甫(fu)其(qi)海綜(zong)合(he)水(shui)利(li)(li)樞紐(niu)工(gong)(gong)(gong)(gong)程(cheng)(cheng)的(de)重點控(kong)制(zhi)工(gong)(gong)(gong)(gong)期工(gong)(gong)(gong)(gong)程(cheng)(cheng)。自2005年(nian)元月(yue)開工(gong)(gong)(gong)(gong)以(yi)來，工(gong)(gong)(gong)(gong)程(cheng)(cheng)中先后安(an)全(quan)順利(li)(li)渡過5處(chu)大(da)涌水(shui)、5處(chu)斷層(ceng)地(di)帶(dai)以(yi)及12個大(da)溶(rong)洞。連續(xu)取得(de)10個單口百米(mi)成洞的(de)佳績(ji)，最(zui)高(gao)紀錄單口月(yue)成洞150米(mi)，8月(yue)1日提(ti)前實現了主體工(gong)(gong)(gong)(gong)程(cheng)(cheng)完(wan)工(gong)(gong)(gong)(gong)。該(gai)(gai)隧洞開工(gong)(gong)(gong)(gong)至今(jin)，工(gong)(gong)(gong)(gong)程(cheng)(cheng)質量合(he)格率100%，優良率達97%以(yi)上并在施工(gong)(gong)(gong)(gong)過程(cheng)(cheng)中創下安(an)全(quan)生產(chan)無事故的(de)好(hao)成績(ji)。