文章來源：中國葛洲壩集團公司 發布時間：2010-09-23
經(jing)過四(si)年多的(de)艱苦努力，目(mu)前(qian)，葛洲(zhou)壩集團與中(zhong)鐵隧道集團聯合(he)承建的(de)南水北調(diao)中(zhong)線(xian)一期穿黃(huang)工程II-A標總(zong)長(chang)3450米(mi)的(de)過黃(huang)河(he)隧洞已(yi)掘進到3000米(mi)處(chu)，整個隧洞11月中(zhong)旬有望全(quan)線(xian)貫(guan)通。這將是人(ren)類歷史上首次(ci)穿越(yue)黃(huang)河(he)。
南水(shui)北(bei)調(diao)中線穿(chuan)黃(huang)工(gong)(gong)(gong)(gong)(gong)程(cheng)是(shi)南水(shui)北(bei)調(diao)工(gong)(gong)(gong)(gong)(gong)程(cheng)中投(tou)資(zi)較(jiao)大(da)、施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)難度(du)最(zui)高、立交規(gui)模(mo)最(zui)大(da)的(de)(de)控制(zhi)工(gong)(gong)(gong)(gong)(gong)期建(jian)筑物，也是(shi)人(ren)類歷史上最(zui)宏(hong)大(da)的(de)(de)穿(chuan)越(yue)大(da)江大(da)河工(gong)(gong)(gong)(gong)(gong)程(cheng)。該工(gong)(gong)(gong)(gong)(gong)程(cheng)的(de)(de)兩條(tiao)穿(chuan)黃(huang)隧洞(dong)(dong)，是(shi)整個工(gong)(gong)(gong)(gong)(gong)程(cheng)中最(zui)引人(ren)注目(mu)的(de)(de)控制(zhi)性(xing)項(xiang)目(mu)，每條(tiao)隧洞(dong)(dong)長4250米，包括800米長的(de)(de)邙山隧洞(dong)(dong)和(he)總長3450米的(de)(de)過黃(huang)河隧洞(dong)(dong)，單洞(dong)(dong)直徑(jing)7米，采用目(mu)前世(shi)界上較(jiao)為先進的(de)(de)盾構(gou)技術(shu)進行挖掘施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，技術(shu)含量高，施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)期長。工(gong)(gong)(gong)(gong)(gong)程(cheng)于(yu)(yu)2005年9月開工(gong)(gong)(gong)(gong)(gong)，計劃于(yu)(yu)2010年3月竣工(gong)(gong)(gong)(gong)(gong)。葛洲壩集團(tuan)與(yu)中鐵隧道(dao)集團(tuan)組(zu)成(cheng)的(de)(de)南水(shui)北(bei)調(diao)中線一期穿(chuan)黃(huang)工(gong)(gong)(gong)(gong)(gong)程(cheng)聯合體，承(cheng)擔了(le)II-A標(biao)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)任務，主要(yao)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)項(xiang)目(mu)包括北(bei)岸豎井(jing)、南岸豎井(jing)、過河隧洞(dong)(dong)段、邙山隧洞(dong)(dong)段、出(chu)口建(jian)筑物、北(bei)岸防護堤等項(xiang)目(mu)的(de)(de)土建(jian)及設(she)備安裝施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)。葛洲壩集團(tuan)五公(gong)司代表葛洲壩集團(tuan)履約。
開工(gong)以(yi)來，葛(ge)洲(zhou)壩建設者們(men)開展技術攻關，狠抓質量、安全監(jian)控，圓(yuan)滿(man)完成(cheng)了(le)盾(dun)構(gou)機(ji)的(de)(de)組裝、調(diao)試，豎井開挖，確保了(le)隧洞掘(jue)(jue)(jue)(jue)進(jin)(jin)施工(gong)的(de)(de)順利(li)進(jin)(jin)行(xing)。2008年6月(yue)(yue)，盾(dun)構(gou)機(ji)整(zheng)機(ji)始(shi)發。經過一(yi)年多的(de)(de)艱苦努力，于今年7月(yue)(yue)掘(jue)(jue)(jue)(jue)進(jin)(jin)至2600米(mi)(mi)處，進(jin)(jin)入(ru)黃(huang)(huang)河(he)(he)河(he)(he)床底施工(gong)，正(zheng)式開始(shi)穿越(yue)(yue)黃(huang)(huang)河(he)(he)之(zhi)旅。8月(yue)(yue)20日，盾(dun)構(gou)機(ji)進(jin)(jin)入(ru)主河(he)(he)道段(duan)(duan)施工(gong)。截至9月(yue)(yue)15日，盾(dun)構(gou)機(ji)已在主河(he)(he)道段(duan)(duan)掘(jue)(jue)(jue)(jue)進(jin)(jin)220米(mi)(mi)，順利(li)到達3000米(mi)(mi)處，距離(li)南(nan)岸豎井僅剩450米(mi)(mi)。項目(mu)部經理(li)部預測，在地質條件不發生重大變(bian)化(hua)和(he)掘(jue)(jue)(jue)(jue)進(jin)(jin)設備(bei)正(zheng)常的(de)(de)情況(kuang)下，盾(dun)構(gou)機(ji)可望于11月(yue)(yue)中(zhong)旬到達南(nan)岸豎井，完成(cheng)過河(he)(he)段(duan)(duan)隧洞施工(gong)。屆時，南(nan)水北調(diao)中(zhong)線(xian)一(yi)期(qi)穿黃(huang)(huang)工(gong)程II-A標的(de)(de)過黃(huang)(huang)河(he)(he)隧洞將全線(xian)貫通，亙古流淌的(de)(de)黃(huang)(huang)河(he)(he)也(ye)將首次(ci)被人(ren)類穿越(yue)(yue)。