文章來源：中國鐵路工(gong)程總公司 發布時間：2010-12-18
11月25日，由中國鐵路工程總公司所屬中鐵隧道集團承建的北京鐵路地下直徑線二標5175米盾構施工管段，通過參建人員的精心組織、科學施工，創造了國內城市繁華地段最大直徑盾構地下獨頭掘進205.25米的施工新紀錄。
中(zhong)鐵隧道(dao)集團(tuan)承擔的(de)(de)北京(jing)(jing)鐵路地(di)下(xia)(xia)(xia)直(zhi)(zhi)徑(jing)(jing)線盾構管段施(shi)工(gong)(gong)(gong)任務，是(shi)目前國內(nei)第一條城市地(di)下(xia)(xia)(xia)全(quan)電氣化(hua)鐵路隧道(dao)工(gong)(gong)(gong)程，其(qi)施(shi)工(gong)(gong)(gong)難(nan)度(du)(du)和(he)安全(quan)風險(xian)被北京(jing)(jing)市政(zheng)府和(he)鐵道(dao)部列為(wei)北京(jing)(jing)“風險(xian)最高、難(nan)度(du)(du)最大(da)的(de)(de)在建地(di)下(xia)(xia)(xia)工(gong)(gong)(gong)程”。中(zhong)鐵隧道(dao)集團(tuan)參(can)(can)建人員從進點施(shi)工(gong)(gong)(gong)以來，嚴格(ge)按照(zhao)“高標準、講(jiang)科學、不懈怠”標準化(hua)作業要求，精心(xin)組織，科學施(shi)工(gong)(gong)(gong)，頑強拼(pin)搏，先后克服了(le)施(shi)工(gong)(gong)(gong)地(di)面(mian)荷(he)載復雜，施(shi)工(gong)(gong)(gong)均(jun)為(wei)砂卵(luan)石地(di)質(zhi)、下(xia)(xia)(xia)穿護城河、天寧寺(si)橋、西(xi)便(bian)門(men)橋等施(shi)工(gong)(gong)(gong)困(kun)難(nan)，在確(que)保安全(quan)質(zhi)量的(de)(de)前提下(xia)(xia)(xia)創造了(le)國內(nei)最大(da)直(zhi)(zhi)徑(jing)(jing)盾構地(di)下(xia)(xia)(xia)獨頭(tou)掘進205.25米(mi)的(de)(de)施(shi)工(gong)(gong)(gong)新紀錄(lu)，為(wei)安全(quan)、優質(zhi)、快速(su)建成(cheng)北京(jing)(jing)鐵路地(di)下(xia)(xia)(xia)直(zhi)(zhi)徑(jing)(jing)線5175米(mi)盾構施(shi)工(gong)(gong)(gong)任務提供了(le)可靠的(de)(de)技術參(can)(can)數和(he)寶貴的(de)(de)施(shi)工(gong)(gong)(gong)經(jing)驗。