文章來源：中(zhong)國葛洲壩集團(tuan)公司 發布時間：2009-09-24
9月18日下(xia)午，向家(jia)壩(ba)水(shui)電(dian)站沖砂孔(kong)壩(ba)段(duan)丙塊混(hun)凝(ning)土(tu)順利澆筑，標(biao)志著電(dian)站左岸大壩(ba)6個導流底孔(kong)全部達到進水(shui)口底板(ban)高程，為(wei)向家(jia)壩(ba)工程年(nian)底截流目標(biao)的實現打下(xia)了(le)良好的基礎。
據(ju)了解，這6個導流(liu)(liu)底(di)(di)孔(kong)(kong)分(fen)別布置在向家(jia)壩(ba)(ba)(ba)水電站(zhan)左(zuo)非(fei)壩(ba)(ba)(ba)段及沖砂孔(kong)(kong)壩(ba)(ba)(ba)段內，每個導流(liu)(liu)底(di)(di)孔(kong)(kong)寬10米，高14米。其中1號(hao)(hao)(hao)至4號(hao)(hao)(hao)導流(liu)(liu)底(di)(di)孔(kong)(kong)孔(kong)(kong)長(chang)152.5米，5號(hao)(hao)(hao)和6號(hao)(hao)(hao)導流(liu)(liu)底(di)(di)孔(kong)(kong)孔(kong)(kong)長(chang)220.45米。工(gong)(gong)程(cheng)(cheng)量大，結構(gou)復雜，質量要(yao)求高，施工(gong)(gong)難(nan)度(du)大。承擔施工(gong)(gong)的(de)葛洲壩(ba)(ba)(ba)集團向家(jia)壩(ba)(ba)(ba)施工(gong)(gong)局(ju)混(hun)凝土(tu)項目部(bu)，科學配置資源，認真編制施工(gong)(gong)技(ji)術(shu)指導書，組織施工(gong)(gong)人(ren)員進行嚴格的(de)培訓，確(que)保了工(gong)(gong)程(cheng)(cheng)順利推(tui)進。