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　　6月30日(ri)16:00，中國鐵(tie)路(lu)(lu)工(gong)(gong)程總公司所屬的中鐵(tie)隧道集(ji)團施(shi)工(gong)(gong)的渝(yu)懷鐵(tie)路(lu)(lu)圓(yuan)梁(liang)山隧道正(zheng)洞2#溶洞段(duan)襯砌施(shi)工(gong)(gong)全面完成，標志著圓(yuan)梁(liang)山隧道這(zhe)一(yi)世界性技術難(nan)題得到了解(jie)決。

　　圓梁山(shan)隧(sui)(sui)道(dao)全(quan)長11.07km，是渝懷(huai)鐵(tie)(tie)(tie)路最(zui)長的隧(sui)(sui)道(dao)，具有(you)高(gao)壓富(fu)水(shui)、溶(rong)洞(dong)(dong)、煤層瓦斯、高(gao)地(di)應(ying)力(li)等異常(chang)惡劣(lie)的地(di)質條件，尤其(qi)是2#溶(rong)洞(dong)(dong)地(di)段最(zui)為(wei)(wei)復雜(za)，被專家稱為(wei)(wei)“國(guo)(guo)內外罕見(jian)，具有(you)挑戰性的技(ji)術難(nan)題”，受到(dao)鐵(tie)(tie)(tie)道(dao)部(bu)、總(zong)公司及各方的極(ji)大(da)關(guan)(guan)注(zhu)。2001年(nian)3月開始(shi)進(jin)洞(dong)(dong)施(shi)(shi)工(gong)(gong)(gong)(gong)，自2002年(nian)4月23日(ri)發生第一(yi)次特大(da)規模(mo)突水(shui)涌(yong)砂后(hou)，地(di)質災害不斷，施(shi)(shi)工(gong)(gong)(gong)(gong)極(ji)其(qi)困難(nan)。為(wei)(wei)按期建成圓梁山(shan)隧(sui)(sui)道(dao)，確保渝懷(huai)鐵(tie)(tie)(tie)路如期運(yun)營，中(zhong)鐵(tie)(tie)(tie)隧(sui)(sui)道(dao)集(ji)團迎難(nan)而上，堅定不移地(di)認(ren)真(zhen)貫徹各級組(zu)(zu)織和領導(dao)的指示，認(ren)真(zhen)配合設計和監理單(dan)位，勇挑重擔，全(quan)力(li)以赴(fu)，千方百計，不懈進(jin)取。積極(ji)組(zu)(zu)織國(guo)(guo)內知名專家研(yan)究(jiu)對(dui)策，開展(zhan)科(ke)研(yan)攻關(guan)(guan)。充分發揮集(ji)團設計、施(shi)(shi)工(gong)(gong)(gong)(gong)、科(ke)研(yan)一(yi)體化優勢，堅持以科(ke)技(ji)為(wei)(wei)先(xian)(xian)導(dao)，采用(yong)超(chao)前地(di)質預報準確探(tan)明地(di)質，適時優化施(shi)(shi)組(zu)(zu)。參建將士大(da)力(li)發揚大(da)無畏的英雄氣概，與險(xian)惡的地(di)質條件頑強抗爭，先(xian)(xian)后(hou)通(tong)過(guo)1#、2#迂回導(dao)坑貫通(tong)實現了(le)(le)對(dui)2#、3#溶(rong)洞(dong)(dong)進(jin)行分割處理的戰略構想；通(tong)過(guo)采用(yong)帷幕注(zhu)漿、泄水(shui)洞(dong)(dong)排水(shui)降壓等技(ji)術措施(shi)(shi)先(xian)(xian)后(hou)實現了(le)(le)正洞(dong)(dong)、平導(dao)3#溶(rong)洞(dong)(dong)段及平導(dao)2#溶(rong)洞(dong)(dong)段勝利貫通(tong)，最(zui)終順利完成了(le)(le)2#溶(rong)洞(dong)(dong)段襯(chen)砌施(shi)(shi)工(gong)(gong)(gong)(gong)，攻克了(le)(le)圓梁山(shan)隧(sui)(sui)道(dao)這一(yi)世界性技(ji)術難(nan)題，為(wei)(wei)中(zhong)國(guo)(guo)鐵(tie)(tie)(tie)路工(gong)(gong)(gong)(gong)程總(zong)公司爭得(de)了(le)(le)榮譽，沒有(you)辜負鐵(tie)(tie)(tie)道(dao)部(bu)建設司和工(gong)(gong)(gong)(gong)管(guan)中(zhong)心的信任和重托。