文章來源(yuan)：中國水利水電(dian)建設集團(tuan)公司 發布時(shi)間：2008-10-24
10月(yue)18日(ri)至22日(ri)，由(you)中國工程院(yuan)(yuan)院(yuan)(yuan)士張超然、譚靖夷、馬洪琪(qi)、鄭守仁和20名專家(jia)組(zu)(zu)成的溪洛(luo)渡(du)導(dao)流(liu)洞(dong)(dong)(dong)截(jie)流(liu)驗(yan)收(shou)小(xiao)組(zu)(zu)，通過實地查勘、聽(ting)取檔案匯報、現場檢(jian)查、交流(liu)討論(lun)等方(fang)(fang)式，對溪洛(luo)渡(du)導(dao)流(liu)洞(dong)(dong)(dong)進行驗(yan)收(shou)，由(you)中國水(shui)電(dian)建設集團(tuan)(tuan)水(shui)電(dian)六局承擔的左岸1#~3#導(dao)流(liu)洞(dong)(dong)(dong)，洞(dong)(dong)(dong)挖成型好(hao)、混凝土(tu)澆筑好(hao)、現場清理整潔度高，驗(yan)收(shou)資(zi)料齊(qi)全，受到(dao)好(hao)評(ping)。三峽工程開(kai)發(fa)(fa)總公(gong)司副總經(jing)理樊啟(qi)祥說：“六局的導(dao)流(liu)洞(dong)(dong)(dong)工程，從初始階段一直(zhi)到(dao)驗(yan)收(shou)階段，抓得緊、抓得主動，各(ge)方(fang)(fang)面(mian)條件創造(zao)得比較(jiao)好(hao)，希望水(shui)電(dian)集團(tuan)(tuan)在其他各(ge)項施工中繼續(xu)發(fa)(fa)揮帶頭(tou)作用(yong)。”
溪(xi)洛(luo)渡水電(dian)(dian)站(zhan)導流洞(dong)(dong)工(gong)(gong)程是大(da)江截(jie)流的(de)(de)關鍵項目，導流洞(dong)(dong)的(de)(de)分流條件(jian)事關截(jie)流成敗，施(shi)工(gong)(gong)過程中(zhong)，中(zhong)國(guo)水電(dian)(dian)六局承擔的(de)(de)左岸(an)1#、2#、3#導流洞(dong)(dong)預裂爆(bao)(bao)破共獲(huo)得業主評定的(de)(de)9個樣板段，創(chuang)出了月石方洞(dong)(dong)挖27.1萬立(li)方米(mi)的(de)(de)國(guo)內同類工(gong)(gong)程施(shi)工(gong)(gong)進(jin)度新紀(ji)錄(lu)，在Ⅲ—Ⅳ類圍巖中(zhong)同時(shi)進(jin)行三個相(xiang)鄰的(de)(de)最大(da)跨(kua)度達(da)34米(mi)的(de)(de)特大(da)斷面(mian)洞(dong)(dong)室開挖與(yu)支護施(shi)工(gong)(gong)，創(chuang)國(guo)內水電(dian)(dian)站(zhan)地下洞(dong)(dong)挖跨(kua)度新紀(ji)錄(lu)。其中(zhong)，“特大(da)斷面(mian)導流洞(dong)(dong)開挖與(yu)襯砌”施(shi)工(gong)(gong)工(gong)(gong)藝，獲(huo)得水電(dian)(dian)建設集(ji)團科技進(jin)步一等獎(jiang)，經專家評定達(da)到(dao)國(guo)際先進(jin)水平(ping)。順利實(shi)施(shi)了1#－3#導流洞(dong)(dong)進(jin)口圍堰(yan)和(he)出口圍堰(yan)385高程以上的(de)(de)爆(bao)(bao)破拆(chai)除(chu)，該(gai)爆(bao)(bao)破為(wei)國(guo)家A級爆(bao)(bao)破，實(shi)際效果(guo)良好。
據(ju)悉(xi)，三峽工(gong)(gong)程(cheng)開(kai)發總公(gong)司(si)溪洛(luo)渡(du)建設(she)(she)部，將導(dao)流洞工(gong)(gong)程(cheng)作為(wei)試點(dian)，優化混凝(ning)(ning)土配合(he)比，增加洞內混凝(ning)(ning)土澆(jiao)筑強度，在底板鋪設(she)(she)冷卻水(shui)管，為(wei)大(da)壩和(he)廠(chang)房(fang)施工(gong)(gong)積累經驗和(he)技術(shu)數據(ju)，因此，導(dao)流洞施工(gong)(gong)質(zhi)量、外(wai)觀形象成為(wei)專家組關(guan)注的焦點(dian)。