文章來源：中國水利(li)水電建設集團公司 發(fa)布時間：2008-12-05
11月29日，由中國水電建(jian)設集團水電一(yi)局(ju)承(cheng)建(jian)的小灣水電站泄洪洞(dong)土建(jian)及金(jin)屬結(jie)構安裝(zhuang)工(gong)程提前33天，勝(sheng)利(li)實現貫通，標(biao)志著工(gong)程進入了一(yi)個嶄新的施工(gong)階段(duan)。
小灣水電(dian)站(zhan)泄洪洞全長(chang)1535.463米，泄洪洞洞身(shen)為有(you)壓變無壓“龍抬頭”布置，由(you)進水口(kou)、有(you)壓段、工(gong)作(zuo)閘門室、龍抬頭段、直槽斜坡段及(ji)出口(kou)挑(tiao)流鼻坎組成。
泄洪洞(dong)工(gong)(gong)程(cheng)(cheng)是(shi)小灣水電(dian)站最后一(yi)個(ge)(ge)土建(jian)主體工(gong)(gong)程(cheng)(cheng)，也是(shi)參建(jian)施(shi)(shi)(shi)工(gong)(gong)最大(da)節點目(mu)(mu)標。為此(ci)，中國水電(dian)一(yi)局小灣項(xiang)(xiang)目(mu)(mu)部(bu)以創建(jian)精品為目(mu)(mu)標，精心(xin)組織施(shi)(shi)(shi)工(gong)(gong)、優化資源配置、強(qiang)化過程(cheng)(cheng)控制(zhi)、嚴抓質(zhi)量和安(an)全；面(mian)對洞(dong)身長(chang)、斷面(mian)大(da)、地(di)質(zhi)條件差(cha)、洞(dong)型復雜多(duo)(duo)變、通(tong)風排煙難(nan)、施(shi)(shi)(shi)工(gong)(gong)干擾(rao)多(duo)(duo)等(deng)施(shi)(shi)(shi)工(gong)(gong)難(nan)點，他們知難(nan)而上，周密計(ji)劃，嚴格管控，不(bu)斷調(diao)整部(bu)署。為加(jia)快(kuai)施(shi)(shi)(shi)工(gong)(gong)進度，項(xiang)(xiang)目(mu)(mu)部(bu)采取(qu)了有(you)效措(cuo)施(shi)(shi)(shi)，分工(gong)(gong)明確，責任到人，層(ceng)(ceng)層(ceng)(ceng)落實，層(ceng)(ceng)層(ceng)(ceng)到位，工(gong)(gong)序(xu)銜接緊(jin)湊，并針對不(bu)良地(di)質(zhi)段，采取(qu)短進尺、弱爆破、多(duo)(duo)循環(huan)等(deng)施(shi)(shi)(shi)工(gong)(gong)手段，積極拼搶工(gong)(gong)期(qi)，生產形勢(shi)始終保持良好的態勢(shi)。今年四季度，項(xiang)(xiang)目(mu)(mu)部(bu)在工(gong)(gong)地(di)掀起大(da)干高潮，使施(shi)(shi)(shi)工(gong)(gong)速度不(bu)斷加(jia)快(kuai)，達到“一(yi)天一(yi)個(ge)(ge)模樣”。
施工中，中國水電一局的建設者加強現場安全管理，對施工質量進行嚴格控制，使施工的安全、質量整體處于受控狀態，創造了安全、質量無事故的好成績，泄洪洞工程比原計劃工期提前一個33天實現貫通。