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媒體嘉通

嘉興市區快速路環線工程上演“飛跨古運河”


來源:嘉興日報  記者(zhe) 張瑞潔 通訊員 蔣雯霞 張宇杰 攝影 朱浩(hao)杰

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昨天下午5 點(dian)18分,距(ju)世界第一大矩形頂管“南(nan)湖號”正式始發(fa)僅一天,市區(qu)快速路環線工程(cheng)再(zai)傳捷報,又(you)一控制性節點(dian)工程(cheng)——龍(long)鳳橋高架(jia)橋首片鋼(gang)箱梁啟動架(jia)設。

在(zai)禾城流(liu)淌了千年的(de)京杭古運(yun)河南側,一出叫人屏息以待的(de)“ 飛跨(kua)古運(yun)河”正在(zai)上(shang)演。

“起(qi)!”一(yi)聲令下,被固定在古運河南(nan)側箱梁上重(zhong)達150噸的架(jia)橋機帶著重(zhong)47.4噸、長20.35米、寬

3.2的鋼(gang)(gang)箱(xiang)梁朝北面緩緩移動(dong),40多分(fen)鐘后,被固(gu)定在(zai)機身下的鋼(gang)(gang)箱(xiang)梁穩(wen)穩(wen)地落下,第一(yi)片(pian)鋼(gang)(gang)箱(xiang)梁架(jia)設成功(gong)!“準備進行第二片(pian)架(jia)設!”施工(gong)現場(chang)負責(ze)人雷厲風(feng)行,工(gong)人們聽從指揮,整(zheng)個架(jia)設過程有(you)條不紊。

據悉,龍鳳橋(qiao)(qiao)(qiao)高架橋(qiao)(qiao)(qiao)是市區快速(su)路環(huan)線工(gong)(gong)程(cheng)的(de)一(yi)(yi)個(ge)關(guan)鍵控制性節點工(gong)(gong)程(cheng),位于中環(huan)西路上(shang),跨(kua)京杭古運河(he),橋(qiao)(qiao)(qiao)梁(liang)全長225米,最大跨(kua)度(du)95米,橋(qiao)(qiao)(qiao)面(mian)寬度(du)25米,為(wei)大跨(kua)度(du)組合鋼(gang)箱(xiang)梁(liang)結(jie)構。該橋(qiao)(qiao)(qiao)共(gong)(gong)設計3 跨(kua),分9 個(ge)節段施工(gong)(gong),每節段并排架設鋼(gang)箱(xiang)梁(liang)4片(pian),共(gong)(gong)計36片(pian)。“由(you)于要(yao)跨(kua)運河(he)架橋(qiao)(qiao)(qiao),我(wo)們引進了(le)(le)全線唯一(yi)(yi)一(yi)(yi)臺(tai)架橋(qiao)(qiao)(qiao)機,花了(le)(le)一(yi)(yi)周(zhou)左(zuo)右安裝、調試、檢(jian)測。今天(tian)預(yu)計架設4片(pian),如果順利的(de)話(hua),大概(gai)7月底可以(yi)完成36片(pian)鋼(gang)箱(xiang)梁(liang)的(de)架設。”箱(xiang)梁(liang)架設完成后,將進行臨時支撐拆除(chu)、橋(qiao)(qiao)(qiao)面(mian)鋪設、老橋(qiao)(qiao)(qiao)恢復(fu)等工(gong)(gong)序,約(yue)10月底,龍鳳橋(qiao)(qiao)(qiao)老橋(qiao)(qiao)(qiao)就能(neng)恢復(fu)通車了(le)(le)。“到(dao)時候,嘉興(xing)市民就可以(yi)看到(dao)‘橋(qiao)(qiao)(qiao)上(shang)橋(qiao)(qiao)(qiao)’的(de)景觀了(le)(le)。”寧(ning)波市政公司市區快速(su)路環(huan)線工(gong)(gong)程(cheng)(一(yi)(yi)期)土(tu)建6標施工(gong)(gong)現場負責(ze)人介(jie)紹(shao)道。

“京杭(hang)古(gu)運河對(dui)嘉興而言有(you)著不同尋常的(de)(de)(de)意義,又是世界非物質文(wen)化(hua)遺產,且(qie)施(shi)(shi)(shi)工現(xian)場場地(di)狹小(xiao),老橋(qiao)承載力(li)有(you)限,跨(kua)運河架(jia)梁施(shi)(shi)(shi)工困難重重,為最(zui)大(da)限度避(bi)免對(dui)河堤、古(gu)運河航道(dao)造成破(po)壞(huai),同時(shi)確保施(shi)(shi)(shi)工安全(quan),我們(men)想(xiang)了很多(duo)辦法(fa),做(zuo)了大(da)量功課(ke)。”嘉通集團(tuan)所(suo)屬(shu)快速路(lu)公(gong)司相關(guan)負(fu)責人說(shuo)道(dao)。從(cong)設計開始,快速路(lu)公(gong)司就聯系相關(guan)單(dan)位翻(fan)閱了大(da)量前期資料,進行(xing)了多(duo)次現(xian)場踏勘,一(yi)(yi)次又一(yi)(yi)次修(xiu)改、完(wan)善龍鳳橋(qiao)高架(jia)橋(qiao)施(shi)(shi)(shi)工方(fang)(fang)(fang)(fang)案(an)(an),才(cai)最(zui)終定下現(xian)在(zai)的(de)(de)(de)“一(yi)(yi)跨(kua)過河”方(fang)(fang)(fang)(fang)案(an)(an)。為解決(jue)施(shi)(shi)(shi)工現(xian)場場地(di)狹小(xiao)、地(di)面(mian)橋(qiao)東側上空有(you)35KV 高壓線、且(qie)無常規(gui)吊裝作業(ye)(ye)面(mian)進行(xing)橋(qiao)面(mian)大(da)跨(kua)度梁板架(jia)設的(de)(de)(de)技(ji)術難題,施(shi)(shi)(shi)工單(dan)位經過多(duo)方(fang)(fang)(fang)(fang)比選,先后提出了汽吊方(fang)(fang)(fang)(fang)案(an)(an)、浮(fu)吊+平(ping)推方(fang)(fang)(fang)(fang)案(an)(an)、頂推方(fang)(fang)(fang)(fang)案(an)(an)、架(jia)橋(qiao)機安裝方(fang)(fang)(fang)(fang)案(an)(an)等,并(bing)多(duo)次組織業(ye)(ye)內專(zhuan)家進行(xing)論(lun)證,最(zui)終架(jia)橋(qiao)機安裝方(fang)(fang)(fang)(fang)案(an)(an)因(yin)其(qi)安全(quan)可靠性脫穎而出,肩負(fu)起這個重要任務。同時(shi),龍鳳橋(qiao)高架(jia)橋(qiao)箱梁跨(kua)度大(da)、線形復(fu)雜,為保證成橋(qiao)線型,確保施(shi)(shi)(shi)工精度,施(shi)(shi)(shi)工現(xian)場采取(qu)了對(dui)地(di)面(mian)橋(qiao)、臨時(shi)支墩及(ji)鋼箱梁全(quan)程實時(shi)監測的(de)(de)(de)措施(shi)(shi)(shi)。

“我(wo)們始終相(xiang)信,辦法總比(bi)困(kun)難(nan)多!”嘉通(tong)集(ji)團所屬快(kuai)(kuai)速(su)(su)路公(gong)司負(fu)責人的話擲(zhi)地有聲。據(ju)悉,市區快(kuai)(kuai)速(su)(su)路環線工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)自(zi)開工(gong)(gong)(gong)(gong)(gong)(gong)以來,就面(mian)臨(lin)工(gong)(gong)(gong)(gong)(gong)(gong)期(qi)緊(jin)、難(nan)度(du)高、協調難(nan)度(du)大(da)、遷改壓力重等困(kun)難(nan),今年年初,受到(dao)新冠肺炎(yan)疫情的影響,工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)進(jin)(jin)度(du)又滯后了20 多天(tian),這對(dui)(dui)本(ben)來工(gong)(gong)(gong)(gong)(gong)(gong)期(qi)相(xiang)當(dang)緊(jin)張的快(kuai)(kuai)速(su)(su)路項目(mu)猶如雪上加霜。嘉通(tong)集(ji)團和(he)(he)(he)快(kuai)(kuai)速(su)(su)路公(gong)司堅(jian)持黨建引領(ling),充分發揮黨建結對(dui)(dui)和(he)(he)(he)紅(hong)色四方(fang)聯盟(meng)作用,組建攻(gong)堅(jian)戰(zhan)(zhan)隊和(he)(he)(he)攻(gong)堅(jian)分隊,以立(li)功競賽活動(dong)(dong)和(he)(he)(he)“奮(fen)戰(zhan)(zhan)六十天(tian)、打贏(ying)攻(gong)堅(jian)戰(zhan)(zhan)”“大(da)干一百天(tian)、決戰(zhan)(zhan)二(er)季度(du)”等專(zhuan)項行(xing)動(dong)(dong)和(he)(he)(he)破難(nan)行(xing)動(dong)(dong)為抓手,全過程(cheng)(cheng)加強(qiang)質量、安全施工(gong)(gong)(gong)(gong)(gong)(gong)管理,倒排工(gong)(gong)(gong)(gong)(gong)(gong)期(qi),掛圖作戰(zhan)(zhan),攻(gong)堅(jian)克難(nan),想方(fang)設(she)法推進(jin)(jin)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)建設(she)。目(mu)前,一、二(er)期(qi)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)累計完成(cheng)高架(jia)段樁基96% ,承臺85% ,立(li)柱87%,蓋梁(liang)53%,箱梁(liang)預制(zhi)38%,架(jia)設(she)23%,一期(qi)工(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)(cheng)全線進(jin)(jin)入梁(liang)板架(jia)設(she)階段,部分標段啟動(dong)(dong)橋面(mian)濕接(jie)縫澆筑,世(shi)界最大(da)矩形斷(duan)面(mian)頂(ding)管隧道——下穿南湖大(da)道頂(ding)管隧道已始發。

古(gu)運(yun)河(he)上(shang),鋼鐵巨龍凌空(kong)飛渡,在(zai)陽光下熠熠生輝,嘉興人的(de)立體交(jiao)通夢(meng)正(zheng)走進現實(shi)。