文章來源：中國葛洲壩集團股份有限公(gong)司(si) 發布時間：2009-05-04
五(wu)一(yi)前(qian)夕，葛洲(zhou)壩集團二公司承建的(de)錦屏二級(ji)水電站地下廠房(fang)2號施(shi)工支洞比(bi)預定工期(qi)提前(qian)2天貫通(tong)。
錦(jin)屏(ping)二(er)級水(shui)電站地(di)下廠房(fang)工(gong)(gong)(gong)程規模宏(hong)大，具(ju)有洞室眾(zhong)多、地(di)質條件差(cha)、布(bu)置緊(jin)湊、立體交錯、工(gong)(gong)(gong)期緊(jin)等(deng)特點，施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)技術復雜，施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)難度(du)世界罕見(jian)。總長527.38米的(de)2號(hao)(hao)(hao)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)支(zhi)洞是其(qi)中的(de)重點項目，直接制(zhi)約著(zhu)后續高壓管道及豎井開挖支(zhi)護(hu)的(de)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)。為早(zao)日實(shi)現(xian)2號(hao)(hao)(hao)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)支(zhi)洞的(de)貫(guan)通(tong)，葛洲壩(ba)人(ren)克(ke)服(fu)地(di)質缺(que)陷造(zao)成的(de)洞內大量涌水(shui)、巖爆、掉塊等(deng)困難，通(tong)過制(zhi)定趕(gan)工(gong)(gong)(gong)措施(shi)(shi)(shi)(shi)，加大設備、人(ren)員(yuan)投入，加強施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)的(de)現(xian)場組(zu)織管理等(deng)措施(shi)(shi)(shi)(shi)，確保了2號(hao)(hao)(hao)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)支(zhi)洞按期完工(gong)(gong)(gong)。