文章來源：中國鐵路工程總(zong)公司(si) 發布時(shi)間(jian)：2009-11-13
11月6日，中鐵四局承建合武鐵路金寨隧道無砟軌道左右雙線順利鋪通，該段全長10.741公里，共鋪設雙塊式軌枕34340根，澆注C40砼道床板1.84萬立方米，左線軌枕已完成三次精調，各項技術指標均滿足設計要求。
自(zi)進入無(wu)砟軌(gui)(gui)道(dao)施(shi)(shi)工(gong)(gong)(gong)以來，組(zu)織(zhi)技(ji)術力量施(shi)(shi)工(gong)(gong)(gong)準備(bei)、精密測量、安(an)裝(zhuang)設備(bei)配置、工(gong)(gong)(gong)藝性(xing)試(shi)(shi)驗(yan)、道(dao)床板(ban)(ban)混凝土(tu)澆注等方(fang)面問題進行(xing)技(ji)術研討和(he)試(shi)(shi)驗(yan)，相繼攻(gong)克了鋼筋骨架(jia)絕(jue)緣、軌(gui)(gui)道(dao)板(ban)(ban)成(cheng)品精度(du)控(kong)制等多項技(ji)術難(nan)點，加大(da)了臨(lin)時施(shi)(shi)工(gong)(gong)(gong)用電、施(shi)(shi)工(gong)(gong)(gong)機械(xie)作業和(he)吊裝(zhuang)作業、道(dao)路交(jiao)通疏導(dao)等方(fang)面的(de)安(an)全(quan)檢查和(he)控(kong)制力度(du)，保(bao)證了無(wu)砟軌(gui)(gui)道(dao)施(shi)(shi)工(gong)(gong)(gong)的(de)安(an)全(quan)有序進行(xing)。合武鐵(tie)路金寨隧(sui)(sui)道(dao)是安(an)徽省境內最(zui)長的(de)鐵(tie)路隧(sui)(sui)道(dao)，也是目前國(guo)內最(zui)長的(de)正(zheng)在實(shi)施(shi)(shi)洞內無(wu)砟軌(gui)(gui)道(dao)作業的(de)隧(sui)(sui)道(dao)。無(wu)砟軌(gui)(gui)道(dao)是我國(guo)當(dang)前最(zui)先進的(de)軌(gui)(gui)道(dao)技(ji)術，施(shi)(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝新、技(ji)術難(nan)度(du)大(da)，尤其是施(shi)(shi)工(gong)(gong)(gong)精度(du)要求特別高，允(yun)許誤差僅為1毫(hao)米。