10月17日(ri)，從徐淮阜高速宿州段路基工程(cheng)02標(biao)項目部傳來喜訊：徐淮阜高速重(zhong)難點控(kong)制(zhi)性工程(cheng)—孫圩(wei)子互通(tong)區F匝道橋鋼箱(xiang)梁(liang)順(shun)利頂(ding)推(tui)到(dao)位，標(biao)志著此工程(cheng)中風(feng)險最大、難度最高的孫圩(wei)子互通(tong)區鋼箱(xiang)梁(liang)頂(ding)推(tui)施工任務全部完成，為項目全面貫通(tong)又攻(gong)克一重(zhong)要節點。

孫圩(wei)子互通位于宿州市(shi)蕭(xiao)縣孫圩(wei)子鎮(zhen)附近，是全線控制性工(gong)程之一，互通內共有5座上(shang)跨(kua)連霍高速鋼箱(xiang)梁(liang)橋施工，分(fen)別為：主線橋、B匝(za)(za)(za)道(dao)(dao)、C匝(za)(za)(za)道(dao)(dao)、F匝(za)(za)(za)道(dao)(dao)和(he)G匝(za)(za)(za)道(dao)(dao)，總重(zhong)(zhong)量約2521.10噸(dun)。為保證上(shang)跨(kua)既(ji)有高速“不(bu)斷交通(tong)、不(bu)限車速、不(bu)占車道(dao)(dao)”的通(tong)行狀(zhuang)態，孫圩子互通(tong)均(jun)采用(yong)步履式鋼箱(xiang)梁(liang)頂(ding)推(tui)施工工藝(yi)，本(ben)次(ci)F匝(za)(za)(za)道(dao)(dao)橋鋼箱(xiang)梁(liang)重(zhong)(zhong)量為378噸(dun)，頂(ding)推(tui)行程(cheng)77米。

鋼(gang)箱梁(liang)(liang)頂推(tui)(tui)施工(gong)(gong)(gong)具有(you)施工(gong)(gong)(gong)難度(du)大、施工(gong)(gong)(gong)協調組織(zhi)復雜、涉路施工(gong)(gong)(gong)安全風險高、施工(gong)(gong)(gong)精度(du)要求高等特點。為(wei)確保(bao)鋼(gang)箱梁(liang)(liang)頂推(tui)(tui)工(gong)(gong)(gong)作的順利進行(xing)，項目部進行(xing)了(le)周密(mi)的統籌(chou)規劃，全方(fang)位(wei)編制(zhi)了(le)涉路交通導改(gai)方(fang)案、頂推(tui)(tui)方(fang)案以(yi)及現場應急處置方(fang)案等關(guan)鍵環節。采用了(le)步(bu)履式(shi)頂推(tui)(tui)工(gong)(gong)(gong)藝，實(shi)現了(le)預期目標(biao)。同時，最大程度(du)減少鋼(gang)箱梁(liang)(liang)頂推(tui)(tui)施工(gong)(gong)(gong)對連霍高速公(gong)路車(che)輛(liang)通行(xing)帶來(lai)的影響，確(que)保了道(dao)路的暢通無阻(zu)。頂推過程中，整體施(shi)工(gong)(gong)線(xian)型控制要求高、難度大，面對頂(ding)推(tui)時極易發生的(de)梁(liang)體變(bian)形和縱橫向偏(pian)移，項目部多次組(zu)織專家論證，并(bing)對施(shi)工(gong)(gong)方案進(jin)(jin)行(xing)優化，施(shi)工(gong)(gong)過(guo)程中，明確責任分(fen)工(gong)(gong)、統籌調配資源、科學合理組(zu)織，嚴格按照施(shi)工(gong)(gong)方案要求進(jin)(jin)行(xing)安全(quan)技術交(jiao)底，針(zhen)對涉路交(jiao)通布控進(jin)(jin)行(xing)專項安全(quan)風(feng)險告知，有力確保了頂(ding)推(tui)過(guo)程的(de)安全(quan)可控、頂(ding)推(tui)位置(zhi)的(de)平穩準確、頂(ding)推(tui)施(shi)工(gong)(gong)精準高效。

此次孫圩子互通區鋼箱(xiang)梁頂推(tui)的(de)圓滿完成，為(wei)未來的(de)鋼箱(xiang)梁頂推(tui)施工積(ji)累了(le)寶貴的經驗，極(ji)大鼓舞了(le)項目部全(quan)體人(ren)員的士氣。項目部將繼續(xu)全力以赴，克服各種(zhong)困(kun)難，確保徐淮阜高速項目按時高質量完成。