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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。

　　穿黃(huang)工(gong)(gong)(gong)(gong)程(cheng)是南(nan)水北調中線(xian)干線(xian)的(de)關鍵(jian)工(gong)(gong)(gong)(gong)程(cheng)，隧(sui)洞(dong)內徑(jing)7米(mi)(mi)(mi)，外徑(jing)8.7米(mi)(mi)(mi)，深埋于黃(huang)河河床下23至35米(mi)(mi)(mi)處，采(cai)用盾構(gou)技術(shu)(shu)開挖掘進(jin)。這是我(wo)國首次采(cai)用大(da)直(zhi)徑(jing)盾構(gou)機(ji)穿越黃(huang)河，也是我(wo)國首次采(cai)用盾構(gou)技術(shu)(shu)在軟基(ji)進(jin)行(xing)長距(ju)離(li)輸水隧(sui)道工(gong)(gong)(gong)(gong)程(cheng)，具(ju)有極大(da)的(de)技術(shu)(shu)挑(tiao)戰性。葛洲壩(ba)集(ji)團(tuan)五公司承擔了穿黃(huang)隧(sui)洞(dong)II-A標的(de)施工(gong)(gong)(gong)(gong)。該(gai)標段的(de)穿黃(huang)隧(sui)洞(dong)全長4250米(mi)(mi)(mi)，使用泥水平(ping)衡式盾構(gou)機(ji)自北向南(nan)推進(jin)。工(gong)(gong)(gong)(gong)程(cheng)于2005年(nian)9月(yue)開工(gong)(gong)(gong)(gong)，計(ji)劃(hua)于2010年(nian)3月(yue)完工(gong)(gong)(gong)(gong)，總工(gong)(gong)(gong)(gong)期54.7個月(yue)。

　　工(gong)程(cheng)開(kai)工(gong)以來(lai)，葛洲壩穿黃項(xiang)目部按(an)照“營造和(he)諧(xie)文(wen)明建(jian)(jian)(jian)設(she)環境，創建(jian)(jian)(jian)世紀一流(liu)精品工(gong)程(cheng)”的(de)思路，狠抓安全、文(wen)明施(shi)工(gong)，嚴格施(shi)工(gong)質(zhi)量控制，使工(gong)程(cheng)建(jian)(jian)(jian)設(she)順利推進(jin)。目前，項(xiang)目部已完成質(zhi)量評定的(de)單元工(gong)程(cheng)達134個，評定優良率為96.2%；項(xiang)目部全年無安全責(ze)任事故發生(sheng)；文(wen)明施(shi)工(gong)也受(shou)到上級主管(guan)部門的(de)好評，先(xian)后被國(guo)務院南水北調工(gong)程(cheng)建(jian)(jian)(jian)設(she)委員會(hui)辦公(gong)室授予(yu)“文(wen)明施(shi)工(gong)單位”、“文(wen)明工(gong)地”稱號。