文(wen)章來源:中(zhong)國建筑工(gong)程總公司 發布時間:2011-06-30
中國建筑工程總公司襄樊漢江三橋項目近日圓滿完成“6483”節點目標(即完成主墩水上樁基64根、陸上樁基480根、產值3億元)。截至目前,項目累計完成主墩64根水上樁基、陸上530根樁基、39座承臺、9個橋墩墩身施工,完成產值3億元。
襄樊漢(han)江三橋(qiao)主(zhu)(zhu)橋(qiao)為(wei)雙塔(ta)雙半索(suo)預應(ying)力(li)混凝土(tu)半漂浮(fu)體(ti)系斜拉(la)橋(qiao),南(nan)索(suo)塔(ta)總高(gao)(gao)度122.5米(mi)、北索(suo)塔(ta)總高(gao)(gao)度120.3米(mi)。該(gai)工(gong)程施(shi)工(gong)有(you)(you)五大(da)難(nan)點(dian)(dian):一(yi)是(shi)主(zhu)(zhu)線橋(qiao)梁(liang)跨水面(mian)寬、水中(zhong)(zhong)(zhong)(zhong)墩位(wei)多,水上施(shi)工(gong)組織困難(nan)、措施(shi)費用高(gao)(gao)。二是(shi)水中(zhong)(zhong)(zhong)(zhong)基(ji)礎施(shi)工(gong)難(nan)度大(da),其(qi)承臺(tai)設計面(mian)標(biao)高(gao)(gao)均位(wei)于河床(chuang)以下。三是(shi)地(di)質(zhi)情況復雜,地(di)層(ceng)中(zhong)(zhong)(zhong)(zhong)存(cun)在(zai)超厚的卵(luan)石層(ceng),且(qie)下部(bu)巖層(ceng)中(zhong)(zhong)(zhong)(zhong)可(ke)能存(cun)在(zai)溶洞,給大(da)直徑超長樁基(ji)施(shi)工(gong)帶來難(nan)度。四是(shi)工(gong)程體(ti)量(liang)大(da),混凝土(tu)總量(liang)達30萬(wan)立方(fang)米(mi),施(shi)工(gong)歷(li)時長、工(gong)期(qi)緊。五是(shi)工(gong)程涉及(ji)多種類型橋(qiao)梁(liang)結構,施(shi)工(gong)工(gong)藝多,其(qi)中(zhong)(zhong)(zhong)(zhong)主(zhu)(zhu)跨310米(mi)的半漂浮(fu)體(ti)系斜拉(la)橋(qiao)技術含(han)量(liang)高(gao)(gao)、施(shi)工(gong)難(nan)度大(da)。為(wei)確保(bao)(bao)質(zhi)量(liang)和工(gong)期(qi),項(xiang)(xiang)(xiang)目(mu)始終堅持以高(gao)(gao)起點(dian)(dian)、高(gao)(gao)定位(wei)、高(gao)(gao)標(biao)準組織施(shi)工(gong)生(sheng)產,及(ji)時組織精良設備進場,10臺(tai)全液壓(ya)氣舉反循環(huan)鉆機(ji)、14臺(tai)德國(guo)寶峨260旋挖鉆機(ji)等頂尖設備為(wei)施(shi)工(gong)生(sheng)產順利進行(xing)提供了(le)(le)有(you)(you)力(li)保(bao)(bao)障(zhang)。同時,項(xiang)(xiang)(xiang)目(mu)聘請了(le)(le)多名行(xing)業專家作為(wei)現(xian)場駐(zhu)地(di)指導(dao),強化了(le)(le)項(xiang)(xiang)(xiang)目(mu)部(bu)技術力(li)量(liang),并(bing)積(ji)極尋(xun)求與高(gao)(gao)校和兄弟單位(wei)開(kai)展技術交流,確保(bao)(bao)施(shi)工(gong)方(fang)案達到(dao)最優。此外,項(xiang)(xiang)(xiang)目(mu)以黨員先鋒號、工(gong)人(ren)先鋒號、青年(nian)文(wen)明號“三號聯創(chuang)”為(wei)抓(zhua)手,大(da)力(li)開(kai)展勞動(dong)競賽。下半年(nian),項(xiang)(xiang)(xiang)目(mu)將全力(li)投入到(dao)主(zhu)(zhu)塔(ta)施(shi)工(gong)之中(zhong)(zhong)(zhong)(zhong),預計今年(nian)12月31日前完(wan)成主(zhu)(zhu)橋(qiao)100個承臺(tai)、80根墩柱、2個主(zhu)(zhu)塔(ta)下塔(ta)柱施(shi)工(gong),完(wan)成產值2.8億元。