文(wen)章來(lai)源：中國鐵(tie)路(lu)工程總公司 發布時(shi)間：2009-08-29
8月24日，中鐵三(san)局(ju)承建(jian)的滬漢蓉(rong)通道(dao)(dao)新麒麟(lin)隧(sui)道(dao)(dao)實現全(quan)(quan)面貫通。新麒麟(lin)隧(sui)道(dao)(dao)全(quan)(quan)長5917米，隧(sui)道(dao)(dao)穿越Ⅲ、Ⅳ、Ⅴ級(ji)圍(wei)巖及涌水、斷層地(di)(di)(di)段，走(zou)向為4‰、3‰的上坡，進出(chu)(chu)口均(jun)采(cai)(cai)用(yong)翼墻(qiang)式(shi)洞門，進口方向設5m單(dan)線(xian)單(dan)壓(ya)式(shi)明洞，出(chu)(chu)口方向設6m雙線(xian)單(dan)壓(ya)式(shi)明洞。開工(gong)(gong)(gong)以(yi)來，中鐵三(san)局(ju)全(quan)(quan)體參建(jian)員工(gong)(gong)(gong)奮力拼搏,克服了(le)進場前期(qi)無大(da)電、作業場地(di)(di)(di)狹窄、冬季施工(gong)(gong)(gong)、圍(wei)巖破碎地(di)(di)(di)質條件(jian)復(fu)雜多變等不利因素，在洞內(nei)通風(feng)和電力嚴重(zhong)不足、洞內(nei)涌水量(liang)大(da)等惡(e)劣(lie)條件(jian)下，嚴格按新奧法(fa)原理(li)組織施工(gong)(gong)(gong)，采(cai)(cai)取全(quan)(quan)斷面開挖，噴(pen)錨支護，曲墻(qiang)仰拱復(fu)合襯砌，有(you)序(xu)推進了(le)隧(sui)道(dao)(dao)施工(gong)(gong)(gong)進度(du)。面對巖層大(da)量(liang)涌水給施工(gong)(gong)(gong)造成的嚴重(zhong)影響,經理(li)部及時采(cai)(cai)取措施，科學組織，合理(li)安(an)排，采(cai)(cai)用(yong)三(san)臺階(jie)開挖，有(you)序(xu)加快了(le)施工(gong)(gong)(gong)進度(du)，確保了(le)隧(sui)道(dao)(dao)的安(an)全(quan)(quan)順利貫通。