文章來源：中國鐵路(lu)工程總公司 發(fa)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。
中鐵(tie)隧道(dao)集團承擔(dan)的北京(jing)鐵(tie)路(lu)(lu)地下(xia)(xia)直徑線盾構(gou)管段(duan)施(shi)工(gong)(gong)(gong)(gong)任務(wu)，是目前國內第一(yi)條(tiao)城(cheng)市(shi)地下(xia)(xia)全電氣化(hua)鐵(tie)路(lu)(lu)隧道(dao)工(gong)(gong)(gong)(gong)程，其施(shi)工(gong)(gong)(gong)(gong)難度和(he)安全風險被北京(jing)市(shi)政府和(he)鐵(tie)道(dao)部(bu)列為北京(jing)“風險最(zui)高、難度最(zui)大的在建(jian)地下(xia)(xia)工(gong)(gong)(gong)(gong)程”。中鐵(tie)隧道(dao)集團參(can)建(jian)人(ren)員從進點施(shi)工(gong)(gong)(gong)(gong)以來，嚴格按照“高標(biao)準、講科學(xue)、不懈怠(dai)”標(biao)準化(hua)作業(ye)要求，精心組織，科學(xue)施(shi)工(gong)(gong)(gong)(gong)，頑強拼搏，先后克服(fu)了(le)(le)施(shi)工(gong)(gong)(gong)(gong)地面荷載(zai)復雜，施(shi)工(gong)(gong)(gong)(gong)均為砂卵(luan)石地質(zhi)(zhi)、下(xia)(xia)穿(chuan)護城(cheng)河、天寧(ning)寺橋、西便門橋等施(shi)工(gong)(gong)(gong)(gong)困難，在確保安全質(zhi)(zhi)量的前提下(xia)(xia)創造了(le)(le)國內最(zui)大直徑盾構(gou)地下(xia)(xia)獨頭掘進205.25米(mi)的施(shi)工(gong)(gong)(gong)(gong)新(xin)紀錄(lu)，為安全、優質(zhi)(zhi)、快速建(jian)成(cheng)北京(jing)鐵(tie)路(lu)(lu)地下(xia)(xia)直徑線5175米(mi)盾構(gou)施(shi)工(gong)(gong)(gong)(gong)任務(wu)提供了(le)(le)可靠的技術參(can)數和(he)寶(bao)貴(gui)的施(shi)工(gong)(gong)(gong)(gong)經驗。