文章來源：中國鐵路(lu)工程(cheng)總公(gong)司 發(fa)布(bu)時(shi)間：2009-12-26
近日，中(zhong)鐵(tie)六局承(cheng)建(jian)的北京(jing)市通(tong)州區(qu)通(tong)順路(lu)上跨(kua)(kua)京(jing)承(cheng)鐵(tie)路(lu)立交(jiao)(jiao)橋主體工(gong)(gong)程全面告竣(jun)。該橋上跨(kua)(kua)既(ji)有京(jing)承(cheng)鐵(tie)路(lu)線(xian)，與鐵(tie)路(lu)線(xian)交(jiao)(jiao)角僅為28度。橋寬28m，為雙向六車道，橋下(xia)是既(ji)有京(jing)承(cheng)鐵(tie)路(lu)線(xian)2條和預留4條鐵(tie)路(lu)線(xian)。施(shi)(shi)工(gong)(gong)中(zhong)，為了減少(shao)對鐵(tie)路(lu)運(yun)(yun)輸(shu)的影(ying)響，采用頂(ding)(ding)推(tui)法施(shi)(shi)工(gong)(gong)，頂(ding)(ding)推(tui)距(ju)離78.3米，全部施(shi)(shi)工(gong)(gong)在(zai)不中(zhong)斷鐵(tie)路(lu)運(yun)(yun)輸(shu)的前提(ti)下(xia)進行(xing)。采用了128米跨(kua)(kua)單榀鋼管拱橋豎曲線(xian)連續箱梁預制頂(ding)(ding)推(tui)施(shi)(shi)工(gong)(gong)新技術，在(zai)北京(jing)市尚(shang)屬首例(li)。