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　　6月30日16:00，中國鐵路工程總(zong)公司所屬(shu)的中鐵隧道集團(tuan)施工的渝懷鐵路圓梁山隧道正(zheng)洞(dong)2#溶洞(dong)段襯砌施工全面完(wan)成(cheng)，標(biao)志(zhi)著圓梁山隧道這一世(shi)界性技術難題得到了解決(jue)。

　　圓梁山(shan)(shan)隧(sui)(sui)道(dao)(dao)(dao)全長(chang)11.07km，是(shi)渝懷(huai)鐵(tie)路最長(chang)的(de)(de)(de)隧(sui)(sui)道(dao)(dao)(dao)，具(ju)有(you)高壓富水(shui)、溶(rong)(rong)洞(dong)(dong)(dong)(dong)、煤層瓦(wa)斯(si)、高地(di)(di)應力(li)等異常(chang)惡劣的(de)(de)(de)地(di)(di)質條(tiao)件(jian)，尤(you)其(qi)是(shi)2#溶(rong)(rong)洞(dong)(dong)(dong)(dong)地(di)(di)段(duan)最為(wei)復(fu)雜(za)，被專(zhuan)(zhuan)家稱為(wei)“國內外罕(han)見，具(ju)有(you)挑戰性的(de)(de)(de)技術難(nan)題”，受到鐵(tie)道(dao)(dao)(dao)部、總公司(si)及各方(fang)的(de)(de)(de)極大(da)關注。2001年(nian)3月開(kai)始進(jin)洞(dong)(dong)(dong)(dong)施(shi)工(gong)(gong)(gong)，自2002年(nian)4月23日發(fa)生第一次特大(da)規模突水(shui)涌砂(sha)后，地(di)(di)質災害不(bu)斷，施(shi)工(gong)(gong)(gong)極其(qi)困難(nan)。為(wei)按期建(jian)(jian)成圓梁山(shan)(shan)隧(sui)(sui)道(dao)(dao)(dao)，確保渝懷(huai)鐵(tie)路如期運營，中(zhong)鐵(tie)隧(sui)(sui)道(dao)(dao)(dao)集團(tuan)迎(ying)難(nan)而(er)上，堅定不(bu)移地(di)(di)認真貫徹各級組(zu)織(zhi)和(he)(he)領(ling)導(dao)(dao)的(de)(de)(de)指示，認真配(pei)合設計(ji)和(he)(he)監(jian)理單位，勇挑重擔，全力(li)以赴(fu)，千方(fang)百計(ji)，不(bu)懈進(jin)取。積極組(zu)織(zhi)國內知名專(zhuan)(zhuan)家研究對策(ce)，開(kai)展科(ke)研攻(gong)關。充(chong)分發(fa)揮(hui)集團(tuan)設計(ji)、施(shi)工(gong)(gong)(gong)、科(ke)研一體化優勢，堅持以科(ke)技為(wei)先(xian)導(dao)(dao)，采(cai)用超前地(di)(di)質預(yu)報準確探明(ming)地(di)(di)質，適(shi)時優化施(shi)組(zu)。參建(jian)(jian)將士大(da)力(li)發(fa)揚(yang)大(da)無畏的(de)(de)(de)英雄氣概，與險惡的(de)(de)(de)地(di)(di)質條(tiao)件(jian)頑強抗爭，先(xian)后通(tong)(tong)過(guo)1#、2#迂回導(dao)(dao)坑貫通(tong)(tong)實現了(le)對2#、3#溶(rong)(rong)洞(dong)(dong)(dong)(dong)進(jin)行分割處理的(de)(de)(de)戰略構(gou)想；通(tong)(tong)過(guo)采(cai)用帷幕注漿、泄水(shui)洞(dong)(dong)(dong)(dong)排水(shui)降(jiang)壓等技術措施(shi)先(xian)后實現了(le)正洞(dong)(dong)(dong)(dong)、平(ping)導(dao)(dao)3#溶(rong)(rong)洞(dong)(dong)(dong)(dong)段(duan)及平(ping)導(dao)(dao)2#溶(rong)(rong)洞(dong)(dong)(dong)(dong)段(duan)勝利貫通(tong)(tong)，最終順利完成了(le)2#溶(rong)(rong)洞(dong)(dong)(dong)(dong)段(duan)襯(chen)砌施(shi)工(gong)(gong)(gong)，攻(gong)克了(le)圓梁山(shan)(shan)隧(sui)(sui)道(dao)(dao)(dao)這(zhe)一世界(jie)性技術難(nan)題，為(wei)中(zhong)國鐵(tie)路工(gong)(gong)(gong)程總公司(si)爭得了(le)榮譽，沒有(you)辜負鐵(tie)道(dao)(dao)(dao)部建(jian)(jian)設司(si)和(he)(he)工(gong)(gong)(gong)管(guan)中(zhong)心(xin)的(de)(de)(de)信任(ren)和(he)(he)重托。