文章來源(yuan)：中國(guo)鐵路工(gong)程總公司 發布時(shi)間：2010-04-10
4月(yue)6日，中(zhong)(zhong)國鐵(tie)路工(gong)(gong)程總公(gong)司一局承(cheng)建的(de)(de)(de)老(lao)虎(hu)屯(tun)(tun)隧(sui)道提(ti)(ti)前(qian)4天貫通。老(lao)虎(hu)屯(tun)(tun)隧(sui)道全長(chang)856米，最低圍巖(yan)達到Ⅲ級，隧(sui)道區局部表覆第(di)四系(xi)上更新(xin)統坡殘積細角礫土，隧(sui)道洞身所遇(yu)巖(yan)石為太古界長(chang)城系(xi)泥灰(hui)巖(yan)、鈣(gai)質(zhi)頁(ye)巖(yan)。斷面具舒(shu)緩波(bo)狀，具有擠(ji)壓片理，擠(ji)壓扁豆體及(ji)斷層泥。隧(sui)道出(chu)口(kou)緊臨大老(lao)虎(hu)村，施工(gong)(gong)干擾(rao)大。在施工(gong)(gong)過程中(zhong)(zhong)，專人負責(ze)施工(gong)(gong)技術、安全質(zhi)量、物資供(gong)應、試(shi)驗檢驗，實(shi)行(xing)(xing)全過程控制。嚴格按照“管(guan)超前(qian)、預注漿、短進(jin)(jin)尺、弱爆破、強支護、早(zao)封閉、勤量測”的(de)(de)(de)施工(gong)(gong)指(zhi)導(dao)原則進(jin)(jin)行(xing)(xing)施作(zuo)(zuo)。將(jiang)出(chu)口(kou)段(duan)100米作(zuo)(zuo)為開挖及(ji)初期支護工(gong)(gong)藝示范段(duan)，50米作(zuo)(zuo)為二次襯砌(qi)工(gong)(gong)藝示范段(duan)，規(gui)范每個施工(gong)(gong)環節，為后序工(gong)(gong)作(zuo)(zuo)提(ti)(ti)供(gong)了(le)可靠(kao)數據，起到了(le)示范指(zhi)導(dao)施工(gong)(gong)的(de)(de)(de)作(zuo)(zuo)用。針對哈大公(gong)司提(ti)(ti)出(chu)的(de)(de)(de)提(ti)(ti)前(qian)一年(nian)完工(gong)(gong)的(de)(de)(de)總體要求，中(zhong)(zhong)鐵(tie)一局認真(zhen)貫徹落實(shi)“學習實(shi)踐科學發(fa)展(zhan)觀(guan)(guan)、打好(hao)哈大2009攻堅戰(zhan)”的(de)(de)(de)號召，調(diao)整施工(gong)(gong)組織設計，迅速開展(zhan)“大干100天，確(que)(que)保(bao)主(zhu)體工(gong)(gong)程完成(cheng)”的(de)(de)(de)勞動(dong)競賽活動(dong)，并與相關責(ze)任(ren)人簽訂“員(yuan)工(gong)(gong)責(ze)任(ren)書”，明(ming)確(que)(que)責(ze)權(quan)利(li)，充分調(diao)動(dong)每個員(yuan)工(gong)(gong)的(de)(de)(de)主(zhu)觀(guan)(guan)能動(dong)性(xing)，確(que)(que)保(bao)隧(sui)道節點工(gong)(gong)期穩(wen)步推進(jin)(jin)。確(que)(que)保(bao)了(le)老(lao)虎(hu)屯(tun)(tun)隧(sui)道提(ti)(ti)前(qian)貫通，為打好(hao)提(ti)(ti)前(qian)工(gong)(gong)期施工(gong)(gong)生(sheng)產攻堅戰(zhan)奠定了(le)基(ji)礎。