文章(zhang)來(lai)源(yuan)：中國(guo)鐵路工程總公司 發布時間(jian)：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。
中鐵(tie)隧道集團承擔的(de)(de)(de)北(bei)(bei)京鐵(tie)路地(di)(di)下(xia)(xia)(xia)直(zhi)(zhi)徑(jing)線(xian)盾構管段施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)任務(wu)(wu)，是(shi)目前國(guo)內(nei)第(di)一條城市地(di)(di)下(xia)(xia)(xia)全(quan)電氣化鐵(tie)路隧道工(gong)(gong)(gong)(gong)(gong)程，其施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)難度和安(an)(an)全(quan)風(feng)險被北(bei)(bei)京市政府和鐵(tie)道部(bu)列為(wei)北(bei)(bei)京“風(feng)險最(zui)(zui)高、難度最(zui)(zui)大的(de)(de)(de)在建地(di)(di)下(xia)(xia)(xia)工(gong)(gong)(gong)(gong)(gong)程”。中鐵(tie)隧道集團參建人員從進(jin)點施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)以來，嚴格(ge)按照“高標準、講科(ke)(ke)學、不懈怠”標準化作業要求，精(jing)心組織，科(ke)(ke)學施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)，頑強拼搏(bo)，先后(hou)克服了(le)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)地(di)(di)面荷(he)載復雜，施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)均(jun)為(wei)砂卵(luan)石地(di)(di)質(zhi)、下(xia)(xia)(xia)穿護城河、天寧寺橋、西便門橋等(deng)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)困難，在確保(bao)安(an)(an)全(quan)質(zhi)量的(de)(de)(de)前提下(xia)(xia)(xia)創造了(le)國(guo)內(nei)最(zui)(zui)大直(zhi)(zhi)徑(jing)盾構地(di)(di)下(xia)(xia)(xia)獨頭掘進(jin)205.25米的(de)(de)(de)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)新紀錄，為(wei)安(an)(an)全(quan)、優質(zhi)、快(kuai)速(su)建成北(bei)(bei)京鐵(tie)路地(di)(di)下(xia)(xia)(xia)直(zhi)(zhi)徑(jing)線(xian)5175米盾構施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)任務(wu)(wu)提供了(le)可靠的(de)(de)(de)技術參數(shu)和寶(bao)貴的(de)(de)(de)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)經(jing)驗。