文(wen)章來源:中(zhong)國冶金科工集團有限(xian)公(gong)司(si) 發布時間:2010-09-15
近日,中國冶金科工集團華冶資源開發有限責任公司在武鋼大冶鐵礦東副井工程治理井筒涌水中,實施靜水止漿墊施工工藝獲得成功。
去年12月,武鋼礦業公司大冶鐵礦東副井工程當豎井掘至-41米時,因涌水量過大被迫停工。今年3月,華冶資源在業主招標治水中中標。
幾個月來,在工(gong)(gong)程施(shi)工(gong)(gong)難度大、沒有施(shi)工(gong)(gong)經驗可借(jie)鑒的情況下,針(zhen)對如何(he)使井(jing)筒(tong)底部砼墊層(ceng)達到所要求強度、控制(zhi)水(shui)泥漿(jiang)液比(bi)例及(ji)輸(shu)送管路如何(he)下送到水(shui)下工(gong)(gong)作面等問題,工(gong)(gong)程技術人(ren)員(yuan)開(kai)展治(zhi)水(shui)攻關。經過多種方(fang)案(an)比(bi)較和多次實驗后(hou),對東(dong)副(fu)井(jing)實施(shi)了靜水(shui)止漿(jiang)墊施(shi)工(gong)(gong)工(gong)(gong)藝,獲得成功。東(dong)副(fu)井(jing)工(gong)(gong)程已(yi)(yi)于8月份(fen)復工(gong)(gong)。目前,井(jing)筒(tong)涌水(shui)量已(yi)(yi)經控制(zhi)在3立方(fang)米/時(shi),項目部將繼續對井(jing)筒(tong)明(ming)顯出水(shui)點進行封堵及(ji)壁(bi)后(hou)注漿(jiang)工(gong)(gong)作。