“2號(hao)(hao)線(xian)后(hou)通段(duan)最(zui)后(hou)一幅軌(gui)(gui)排(pai)開始吊裝合攏。”1月(yue)28日下午4:00，隨著(zhu)南昌地鐵(tie)2號(hao)(hao)線(xian)順外站(zhan)最(zui)后(hou)一排(pai)25米浮置板(ban)(ban)道床(chuang)鋼筋籠鋪(pu)設(she)就位(wei)，2號(hao)(hao)線(xian)后(hou)通段(duan)?C?C地鐵(tie)大廈站(zhan)至(zhi)辛家庵站(zhan)實現全(quan)線(xian)軌(gui)(gui)通，此舉標志(zhi)著(zhu)2號(hao)(hao)線(xian)全(quan)線(xian)開通試運營(ying)進入(ru)倒計時。建設(she)單位(wei)和(he)施工單位(wei)透露，浮置板(ban)(ban)道床(chuang)占(zhan)總鋪(pu)軌(gui)(gui)量的40%，技(ji)術難度在全(quan)國地鐵(tie)項目中屬罕見(jian)。
技術難(nan)度在全國地鐵項目中屬罕見
據了(le)解(jie)，2號線(xian)(xian)(xian)后通(tong)段(duan)鋪軌(gui)(gui)(gui)(gui)長度23.605公(gong)里(li)，自開工(gong)(gong)(gong)(gong)以來，建設單(dan)位和施(shi)工(gong)(gong)(gong)(gong)單(dan)位統(tong)籌安排、精(jing)心組(zu)(zu)織，確保施(shi)工(gong)(gong)(gong)(gong)質(zhi)量達標(biao)，按(an)期完成工(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)節(jie)點。中鐵四局軌(gui)(gui)(gui)(gui)道(dao)二(er)標(biao)常務副經(jing)理(li)修春光(guang)透露，2號線(xian)(xian)(xian)后通(tong)段(duan)軌(gui)(gui)(gui)(gui)道(dao)工(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)包含9.45公(gong)里(li)鋼彈(dan)簧浮置板道(dao)床、21組(zu)(zu)單(dan)開道(dao)岔(其中3組(zu)(zu)鋼彈(dan)簧浮置板道(dao)岔)和3組(zu)(zu)交叉渡線(xian)(xian)(xian)，浮置板道(dao)床占(zhan)總(zong)鋪軌(gui)(gui)(gui)(gui)量的(de)40%，技術難度在全(quan)國(guo)地鐵項(xiang)目中屬罕見。為提高施(shi)工(gong)(gong)(gong)(gong)質(zhi)量水平，施(shi)工(gong)(gong)(gong)(gong)單(dan)位挑選有豐富的(de)現(xian)場施(shi)工(gong)(gong)(gong)(gong)經(jing)驗人員(yuan)作為保障(zhang)，引(yin)用先進(jin)的(de)軌(gui)(gui)(gui)(gui)道(dao)基礎控(kong)(kong)制網技術，從隧(sui)道(dao)貫通(tong)測量至軌(gui)(gui)(gui)(gui)道(dao)線(xian)(xian)(xian)路精(jing)調進(jin)行全(quan)過程(cheng)(cheng)(cheng)把控(kong)(kong)，確保工(gong)(gong)(gong)(gong)程(cheng)(cheng)(cheng)達到驗收標(biao)準。
南昌(chang)軌(gui)(gui)道(dao)(dao)集(ji)團項目公司羅(luo)來煒表(biao)示(shi)，為了(le)(le)(le)提(ti)升施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)量和(he)工(gong)(gong)(gong)(gong)(gong)(gong)藝，南昌(chang)地鐵組織(zhi)相關(guan)單位，重點針(zhen)對(dui)與已經投入運營(ying)線路接(jie)軌(gui)(gui)以(yi)及多專業交叉施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)等問題進行(xing)(xing)(xing)了(le)(le)(le)全(quan)(quan)面(mian)梳理，有針(zhen)對(dui)性地制(zhi)定(ding)管(guan)控(kong)措施(shi)(shi)，并在施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)過程中(zhong)實(shi)行(xing)(xing)(xing)全(quan)(quan)程監控(kong)。針(zhen)對(dui)鋼彈(dan)簧浮置板道(dao)(dao)床，尤其是鋼彈(dan)簧浮置板道(dao)(dao)岔施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)(gong)序復雜、材料設備繁多的(de)困難，施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)單位組織(zhi)各方(fang)人(ren)員(yuan)(yuan)(yuan)對(dui)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)方(fang)法進行(xing)(xing)(xing)討論，不斷優化施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)方(fang)案，大大提(ti)高了(le)(le)(le)現(xian)場施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)(gong)效(xiao)。針(zhen)對(dui)軌(gui)(gui)行(xing)(xing)(xing)區(qu)交叉施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)多、安(an)(an)(an)全(quan)(quan)風險大的(de)特點，在已經完成鋪(pu)軌(gui)(gui)的(de)隧(sui)道(dao)(dao)內安(an)(an)(an)裝了(le)(le)(le)先進的(de)軌(gui)(gui)行(xing)(xing)(xing)區(qu)安(an)(an)(an)全(quan)(quan)系統管(guan)理平臺，實(shi)現(xian)了(le)(le)(le)對(dui)軌(gui)(gui)行(xing)(xing)(xing)區(qu)的(de)施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)業人(ren)員(yuan)(yuan)(yuan)、設備及軌(gui)(gui)道(dao)(dao)車進行(xing)(xing)(xing)精準定(ding)位和(he)監控(kong)，大大提(ti)升了(le)(le)(le)軌(gui)(gui)行(xing)(xing)(xing)區(qu)內施(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)作(zuo)(zuo)業人(ren)員(yuan)(yuan)(yuan)的(de)安(an)(an)(an)全(quan)(quan)。
2號(hao)線(xian)全線(xian)開(kai)通試運營進入倒計(ji)時
隨(sui)著南(nan)昌地鐵2號(hao)線(xian)順外站最后(hou)一排(pai)25米浮置板道(dao)床鋼筋(jin)籠鋪設就位，2號(hao)線(xian)后(hou)通段?C?C地鐵大廈站至辛家庵站實現全線(xian)軌通，此舉標志著2號(hao)線(xian)全線(xian)開通試(shi)運營進入倒計時。
為確保2號線(xian)(xian)后通(tong)段按期(qi)開(kai)通(tong)運營，施工(gong)(gong)單位將在春(chun)節(jie)期(qi)間(jian)投入(ru)作業(ye)(ye)人員100余(yu)人、機(ji)械設備20余(yu)臺繼續進(jin)行(xing)(xing)后通(tong)段剩(sheng)余(yu)約4公(gong)里(li)的(de)浮置板道床頂升作業(ye)(ye)和11公(gong)里(li)的(de)無縫線(xian)(xian)路焊(han)接施工(gong)(gong)作業(ye)(ye)，同時對已完工(gong)(gong)線(xian)(xian)路進(jin)行(xing)(xing)檢查(cha)和軌(gui)行(xing)(xing)區巡視，確保春(chun)節(jie)期(qi)間(jian)軌(gui)行(xing)(xing)區施工(gong)(gong)作業(ye)(ye)人員的(de)安(an)全。
