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　　9月5日, 由葛洲壩集團五公司承建的穿黃隧洞項目成功掘進1000米。

　　穿(chuan)(chuan)(chuan)黃(huang)工(gong)(gong)(gong)程(cheng)(cheng)是南(nan)水(shui)北(bei)調(diao)中線(xian)干線(xian)的(de)關鍵工(gong)(gong)(gong)程(cheng)(cheng)，隧洞(dong)(dong)內徑(jing)(jing)7米(mi)，外徑(jing)(jing)8.7米(mi)，深埋于黃(huang)河(he)河(he)床下23至35米(mi)處，采用(yong)盾(dun)構(gou)技術(shu)開挖掘進(jin)。這是我(wo)國(guo)首(shou)次采用(yong)大直徑(jing)(jing)盾(dun)構(gou)機(ji)穿(chuan)(chuan)(chuan)越黃(huang)河(he)，也是我(wo)國(guo)首(shou)次采用(yong)盾(dun)構(gou)技術(shu)在軟(ruan)基進(jin)行(xing)長(chang)距離輸水(shui)隧道工(gong)(gong)(gong)程(cheng)(cheng)，具有極大的(de)技術(shu)挑戰性。葛(ge)洲壩集團(tuan)五(wu)公(gong)司(si)承擔了穿(chuan)(chuan)(chuan)黃(huang)隧洞(dong)(dong)II-A標(biao)的(de)施(shi)工(gong)(gong)(gong)。該標(biao)段的(de)穿(chuan)(chuan)(chuan)黃(huang)隧洞(dong)(dong)全長(chang)4250米(mi)，使用(yong)泥水(shui)平(ping)衡式盾(dun)構(gou)機(ji)自(zi)北(bei)向南(nan)推進(jin)。工(gong)(gong)(gong)程(cheng)(cheng)于2005年9月(yue)開工(gong)(gong)(gong)，計(ji)劃(hua)于2010年3月(yue)完工(gong)(gong)(gong)，總工(gong)(gong)(gong)期(qi)54.7個月(yue)。

　　工程(cheng)開工以來，葛洲(zhou)壩穿黃項目(mu)部(bu)(bu)按照“營(ying)造和諧文明建(jian)(jian)設環境，創建(jian)(jian)世紀一流精品工程(cheng)”的(de)(de)思路(lu)，狠抓安全(quan)(quan)、文明施(shi)工，嚴格(ge)施(shi)工質量控制，使工程(cheng)建(jian)(jian)設順利推進(jin)。目(mu)前，項目(mu)部(bu)(bu)已(yi)完(wan)成質量評定的(de)(de)單元工程(cheng)達(da)134個，評定優良率(lv)為96.2%；項目(mu)部(bu)(bu)全(quan)(quan)年無安全(quan)(quan)責(ze)任(ren)事故發生(sheng)；文明施(shi)工也受到上級主管部(bu)(bu)門的(de)(de)好評，先后被國(guo)務院(yuan)南(nan)水(shui)北調工程(cheng)建(jian)(jian)設委員(yuan)會辦公室(shi)授予“文明施(shi)工單位(wei)”、“文明工地”稱號。