文章(zhang)來源：中國葛洲壩(ba)集團公司 發布(bu)時(shi)間(jian)：2010-03-26
3月19日11時15分，葛洲(zhou)壩(ba)集團二公司承建的(de)丹(dan)江口水電站大壩(ba)加高左岸(an)溢流壩(ba)段“四枯”閘墩，提前一個月全部加高到(dao)設(she)計高程，為大壩(ba)2009年安全度汛創造了條(tiao)件。
丹江(jiang)口水電站大壩(ba)(ba)加(jia)高工(gong)(gong)(gong)(gong)程是南(nan)水北調(diao)中線水源工(gong)(gong)(gong)(gong)程，也是目(mu)前國內最(zui)大的(de)(de)水利樞紐改擴建工(gong)(gong)(gong)(gong)程，建成后不僅可(ke)(ke)以增加(jia)水庫調(diao)節能力，攔蓄更多來水調(diao)往北方，還可(ke)(ke)解決(jue)(jue)漢(han)江(jiang)中下(xia)游防洪的(de)(de)問題。葛(ge)(ge)洲(zhou)壩(ba)(ba)集團二公司丹江(jiang)口項(xiang)(xiang)目(mu)部承(cheng)擔了(le)溢流壩(ba)(ba)段(duan)溢流面和閘墩加(jia)固加(jia)高，非溢流壩(ba)(ba)段(duan)、廠房壩(ba)(ba)段(duan)和左聯壩(ba)(ba)段(duan)下(xia)游貼(tie)坡和壩(ba)(ba)頂(ding)加(jia)高等(deng)項(xiang)(xiang)目(mu)的(de)(de)施(shi)工(gong)(gong)(gong)(gong)。合同工(gong)(gong)(gong)(gong)期為(wei)2005年8月至(zhi)2010年4月30日。開工(gong)(gong)(gong)(gong)以來，葛(ge)(ge)洲(zhou)壩(ba)(ba)人(ren)認真開展技術(shu)攻關(guan)，成功(gong)解決(jue)(jue)了(le)初(chu)期老壩(ba)(ba)體結構拆除施(shi)工(gong)(gong)(gong)(gong)、初(chu)期壩(ba)(ba)頂(ding)裂縫處(chu)理等(deng)難題，在復雜的(de)(de)施(shi)工(gong)(gong)(gong)(gong)條件和高危環境下(xia)強(qiang)化質量(liang)、安(an)全(quan)管理，確(que)保了(le)工(gong)(gong)(gong)(gong)程建設的(de)(de)安(an)全(quan)、優質、高效推進。
據悉，閘墩加高全部(bu)到頂后(hou)，該項目部(bu)將全面(mian)轉(zhuan)向18號壩(ba)段度汛棧橋安裝、門(men)塔機拆除以及16至17號壩(ba)段5000KN門(men)式啟閉(bi)機軌道梁安裝工作，向“四枯”度汛目標(biao)做最后(hou)沖刺。