文章來源：中國鐵路工程總(zong)公司(si) 發布時間(jian)：2010-05-27
5月20日，中國鐵路(lu)工(gong)(gong)程總公(gong)司(si)中鐵隧(sui)(sui)(sui)(sui)道施(shi)工(gong)(gong)的永武高(gao)速公(gong)路(lu)A8標控(kong)制性工(gong)(gong)程橫山(shan)隧(sui)(sui)(sui)(sui)道右線勝利貫通(tong)。橫山(shan)隧(sui)(sui)(sui)(sui)道全(quan)長2940米，地(di)(di)(di)(di)質(zhi)(zhi)條(tiao)(tiao)件差(cha)，以Ⅳ、Ⅴ級圍巖(yan)(yan)為主，圍巖(yan)(yan)節理裂隙發育，穩定(ding)性差(cha)，隧(sui)(sui)(sui)(sui)道穿過7條(tiao)(tiao)斷(duan)層(ceng)(ceng)，施(shi)工(gong)(gong)難度極大。施(shi)工(gong)(gong)中遭遇了(le)千枚巖(yan)(yan)、千枚狀粉(fen)砂巖(yan)(yan)、印支期侵入花(hua)崗巖(yan)(yan)、斷(duan)層(ceng)(ceng)等多(duo)種不(bu)良(liang)地(di)(di)(di)(di)質(zhi)(zhi)，是永武高(gao)速公(gong)路(lu)地(di)(di)(di)(di)質(zhi)(zhi)條(tiao)(tiao)件最復雜、施(shi)工(gong)(gong)風險最高(gao)的隧(sui)(sui)(sui)(sui)道之(zhi)一。自開工(gong)(gong)以來，中鐵隧(sui)(sui)(sui)(sui)道精心策劃(hua)、科學組(zu)織，規范施(shi)工(gong)(gong)，有效控(kong)制作業循環時間，超前預測(ce)地(di)(di)(di)(di)質(zhi)(zhi)情況，參建員工(gong)(gong)齊心協力，采用短進(jin)尺(chi)、弱爆破(po)，穩扎(zha)穩打的方式，不(bu)畏艱險、奮力拼搏，多(duo)次(ci)戰勝涌(yong)水，順利通(tong)過7條(tiao)(tiao)斷(duan)層(ceng)(ceng)，取(qu)得(de)了(le)在極其復雜的地(di)(di)(di)(di)質(zhi)(zhi)條(tiao)(tiao)件下，隧(sui)(sui)(sui)(sui)道開挖無坍塌(ta)、無安(an)全(quan)事故的好(hao)成(cheng)績。