文(wen)章來(lai)源：中國葛洲壩集團公司(si) 發布時間：2010-07-23
經過半年多的施工(gong)，目前，葛洲壩集團一(yi)公司承(cheng)建的海南(nan)大(da)廣壩灌區(qu)中干渠三標工(gong)程施工(gong)形象滿足合同要求，工(gong)程總體進展順(shun)利。
大廣壩灌區工(gong)(gong)(gong)程(cheng)(cheng)位于海南(nan)省西部東方(fang)(fang)市(shi)境內，為大二型灌區工(gong)(gong)(gong)程(cheng)(cheng)，由(you)高、中(zhong)(zhong)(zhong)、低(di)、昌江和陀興干渠(qu)(qu)等五大渠(qu)(qu)系(xi)(xi)組成。中(zhong)(zhong)(zhong)干渠(qu)(qu)設計灌溉(gai)面積31.15萬(wan)畝，是(shi)(shi)灌溉(gai)面積最(zui)大的(de)系(xi)(xi)統。一公司承建的(de)三標段(duan)是(shi)(shi)連接2號隧洞和干渠(qu)(qu)渠(qu)(qu)尾(wei)之間(jian)的(de)渠(qu)(qu)段(duan)，全長(chang)52.9公里，是(shi)(shi)該工(gong)(gong)(gong)程(cheng)(cheng)所(suo)有標段(duan)中(zhong)(zhong)(zhong)最(zui)長(chang)的(de)標段(duan)，也是(shi)(shi)施(shi)工(gong)(gong)(gong)構筑物最(zui)多(duo)、結構最(zui)為復雜，工(gong)(gong)(gong)程(cheng)(cheng)量最(zui)大、施(shi)工(gong)(gong)(gong)難度最(zui)大的(de)標段(duan)。標段(duan)內共布置渠(qu)(qu)系(xi)(xi)建筑物227座，包括隧洞、渡(du)槽、橋梁、排洪涵洞，土(tu)石(shi)方(fang)(fang)開(kai)挖170萬(wan)立(li)方(fang)(fang)米，填方(fang)(fang)110萬(wan)立(li)方(fang)(fang)米。自去年下半年開(kai)工(gong)(gong)(gong)以來，葛(ge)洲(zhou)壩人克服施(shi)工(gong)(gong)(gong)戰線長(chang)、地(di)形繁雜、構筑物繁多(duo)、征地(di)補償等困難，優化資源配置，精心組織(zhi)施(shi)工(gong)(gong)(gong)，頑強推進工(gong)(gong)(gong)程(cheng)(cheng)施(shi)工(gong)(gong)(gong)，得到了各方(fang)(fang)肯定。
截(jie)至目(mu)前，項目(mu)部共(gong)完(wan)(wan)成(cheng)渠道土石方開挖48萬(wan)立方米(mi)，回填21萬(wan)立方米(mi)，混凝土襯砌約1500米(mi)；共(gong)設計渡槽11座(zuo)(zuo)，7座(zuo)(zuo)正(zheng)在施工(gong)(gong)(gong)；共(gong)完(wan)(wan)成(cheng)箱(xiang)涵24座(zuo)(zuo)、圓管涵11座(zuo)(zuo)，完(wan)(wan)成(cheng)一座(zuo)(zuo)公路橋(qiao)(qiao)施工(gong)(gong)(gong)；共(gong)設計人行(xing)橋(qiao)(qiao)39座(zuo)(zuo)，正(zheng)在施工(gong)(gong)(gong)6座(zuo)(zuo)，3座(zuo)(zuo)完(wan)(wan)成(cheng)橋(qiao)(qiao)板施工(gong)(gong)(gong)。工(gong)(gong)(gong)程(cheng)設計鋼(gang)筋制安3309 噸(dun)，已完(wan)(wan)成(cheng)560噸(dun)，其他各(ge)項施工(gong)(gong)(gong)正(zheng)在緊張進(jin)行(xing)中。