文章來源(yuan)：中國葛(ge)洲壩集(ji)團公司(si) 發布時間：2010-03-20
3月15日，由(you)葛(ge)洲(zhou)壩集團向(xiang)家壩施工(gong)局承擔施工(gong)任務的(de)向(xiang)家壩工(gong)程二期防滲(shen)墻(qiang)成槽(cao)量已達到77%以上，目前還剩24個(ge)槽(cao)段正在抓緊施工(gong)中。
向(xiang)家壩(ba)二(er)期(qi)防(fang)滲(shen)(shen)墻是今年(nian)基坑(keng)安全度汛的卡(ka)關(guan)項目(mu)。受不良(liang)地質(zhi)影(ying)響(xiang)，防(fang)滲(shen)(shen)墻施(shi)(shi)工(gong)(gong)部位建(jian)基面最深(shen)達到(dao)60米，較以往常規40多米的防(fang)滲(shen)(shen)施(shi)(shi)工(gong)(gong)高出近30%。同時，為確(que)保施(shi)(shi)工(gong)(gong)質(zhi)量(liang)，防(fang)滲(shen)(shen)墻建(jian)基面的勘(kan)探孔由原來15米改為7.5米一個，工(gong)(gong)程量(liang)增大。為確(que)保按期(qi)完(wan)成(cheng)防(fang)滲(shen)(shen)墻施(shi)(shi)工(gong)(gong)，向(xiang)家壩(ba)施(shi)(shi)工(gong)(gong)局通過加大鉆(zhan)機設(she)備投入和大力實施(shi)(shi)激勵機制(zhi)，提高了(le)(le)廣大干部職工(gong)(gong)的主(zhu)觀能動性，使(shi)68臺鉆(zhan)機設(she)備安全運行，較好地完(wan)成(cheng)了(le)(le)各項施(shi)(shi)工(gong)(gong)生產(chan)任務。目(mu)前施(shi)(shi)工(gong)(gong)槽段閉氣效果良(liang)好，能滿足(zu)質(zhi)量(liang)控制(zhi)要求，實現(xian)3月30日(ri)防(fang)滲(shen)(shen)墻完(wan)工(gong)(gong)目(mu)標(biao)指日(ri)可(ke)待。