文章來源：中國葛洲壩集團(tuan)公司 發布時間(jian)：2010-03-20
3月15日，由葛洲壩集(ji)團向家壩施(shi)(shi)工(gong)局(ju)承(cheng)擔施(shi)(shi)工(gong)任務的向家壩工(gong)程二期防滲(shen)墻成槽(cao)(cao)量已達到77%以上(shang)，目(mu)前還(huan)剩(sheng)24個槽(cao)(cao)段正在抓(zhua)緊(jin)施(shi)(shi)工(gong)中。
向(xiang)家(jia)壩二期防滲墻(qiang)(qiang)(qiang)是今年基坑(keng)安全(quan)度汛的卡關項(xiang)目。受不良地(di)質影響，防滲墻(qiang)(qiang)(qiang)施(shi)(shi)(shi)工(gong)(gong)(gong)部(bu)位建基面最(zui)深達到60米，較以(yi)往(wang)常規40多(duo)米的防滲施(shi)(shi)(shi)工(gong)(gong)(gong)高(gao)出近30%。同時，為確保施(shi)(shi)(shi)工(gong)(gong)(gong)質量，防滲墻(qiang)(qiang)(qiang)建基面的勘(kan)探孔(kong)由(you)原來(lai)15米改為7.5米一個，工(gong)(gong)(gong)程量增(zeng)大。為確保按期完成防滲墻(qiang)(qiang)(qiang)施(shi)(shi)(shi)工(gong)(gong)(gong)，向(xiang)家(jia)壩施(shi)(shi)(shi)工(gong)(gong)(gong)局通過加大鉆機(ji)設備(bei)投(tou)入和大力實施(shi)(shi)(shi)激(ji)勵(li)機(ji)制，提高(gao)了(le)廣大干部(bu)職工(gong)(gong)(gong)的主觀(guan)能動性，使68臺(tai)鉆機(ji)設備(bei)安全(quan)運行，較好地(di)完成了(le)各項(xiang)施(shi)(shi)(shi)工(gong)(gong)(gong)生產任務。目前施(shi)(shi)(shi)工(gong)(gong)(gong)槽(cao)段閉(bi)氣效果(guo)良好，能滿(man)足質量控(kong)制要求，實現3月30日防滲墻(qiang)(qiang)(qiang)完工(gong)(gong)(gong)目標指日可待。