文章來(lai)源：中(zhong)國鐵路工程總公司 發布時間：2011-02-03
近日，中國鐵路工程總公司所屬中鐵四局承建的國內自來水行業首個全線采用3.6米超大管徑、超千米長距離頂進的上海青草沙原水工程嚴橋支線C6標工程全線順利貫通，為上海市整個原水工程的如期完成開創了先決條件。
上(shang)(shang)海(hai)青(qing)草沙(sha)水源地原(yuan)水工(gong)(gong)(gong)程嚴(yan)(yan)橋(qiao)(qiao)支線(xian)(xian)(xian)(xian)工(gong)(gong)(gong)程是(shi)上(shang)(shang)海(hai)“十一(yi)五”重(zhong)點(dian)(dian)建設項目，是(shi)上(shang)(shang)海(hai)世博會的(de)重(zhong)要配套工(gong)(gong)(gong)程之一(yi)，工(gong)(gong)(gong)程位于上(shang)(shang)海(hai)市(shi)浦(pu)東新區。嚴(yan)(yan)橋(qiao)(qiao)支線(xian)(xian)(xian)(xian)作(zuo)為工(gong)(gong)(gong)程陸域輸水管(guan)(guan)線(xian)(xian)(xian)(xian)中的(de)重(zhong)要支線(xian)(xian)(xian)(xian)，其供水規模為440萬m3/日(ri)，管(guan)(guan)線(xian)(xian)(xian)(xian)全(quan)線(xian)(xian)(xian)(xian)采(cai)用頂(ding)管(guan)(guan)施工(gong)(gong)(gong)。由(you)市(shi)政分公司承建的(de)上(shang)(shang)海(hai)青(qing)草沙(sha)水源地嚴(yan)(yan)橋(qiao)(qiao)支線(xian)(xian)(xian)(xian)C6標，具有(you)頂(ding)管(guan)(guan)直徑(jing)大、單段(duan)頂(ding)進距離長(chang)、近(jin)距離雙排同時(shi)頂(ding)進的(de)特(te)點(dian)(dian)，在國內(nei)尚屬首(shou)次。其鋼(gang)管(guan)(guan)直徑(jing)DN3600，管(guan)(guan)線(xian)(xian)(xian)(xian)長(chang)度2119m×2，工(gong)(gong)(gong)程全(quan)線(xian)(xian)(xian)(xian)分兩段(duan)，由(you)一(yi)座工(gong)(gong)(gong)作(zuo)井(jing)和(he)兩座接(jie)收井(jing)組成，其中J26-J25段(duan)頂(ding)距為1119米(mi)，J26-J27段(duan)頂(ding)距為1004米(mi)。