文章(zhang)來源：中國葛洲壩集團公司 發(fa)布時間：2009-01-17
2007年最后一天，在世界最高(gao)雙曲拱壩施工(gong)(gong)現場(chang)，由(you)葛洲(zhou)壩二公司承擔施工(gong)(gong)的錦屏一級(ji)水電(dian)站進(jin)(jin)水口開挖順利(li)達到1777米設計高(gao)程，至(zhi)此，電(dian)站進(jin)(jin)水口及泄洪洞1885至(zhi)1777米高(gao)程的石(shi)方(fang)開挖全部完成(cheng)，施工(gong)(gong)進(jin)(jin)度滿足(zu)合同工(gong)(gong)期和節點工(gong)(gong)期要求。
錦屏一級水電站進水口(kou)位于電站高拱壩上游約(yue)500米處，自(zi)1885米平臺上下垂直200余米的(de)(de)開(kai)挖(wa)部位，開(kai)挖(wa)難度(du)大(da)，安(an)(an)全(quan)風(feng)險高，施(shi)工(gong)(gong)(gong)(gong)布(bu)置(zhi)難，交叉干(gan)擾(rao)多。施(shi)工(gong)(gong)(gong)(gong)中(zhong)，葛洲壩的(de)(de)工(gong)(gong)(gong)(gong)程(cheng)技術人員和(he)施(shi)工(gong)(gong)(gong)(gong)管理人員優(you)化方(fang)案(an)，科學布(bu)置(zhi)，謹慎施(shi)工(gong)(gong)(gong)(gong)，在確保施(shi)工(gong)(gong)(gong)(gong)進度(du)和(he)安(an)(an)全(quan)的(de)(de)前(qian)提下，確保了施(shi)工(gong)(gong)(gong)(gong)質量，開(kai)挖(wa)出的(de)(de)進水口(kou)斷面平整度(du)高、基巖(yan)穩定，符合設計要求。
據了解，目前，電站進水口的開挖支護工程正緊密跟進，預計2月份可按照合同要求移交電站進水口1777米高程工作面。