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南拒马河特大桥正式进入合龙冲刺阶段
日期:2020-10-09 09:04:36 访问量:   字号:[ 小(xiao)]  [关闭] 视力保护色:
       本网讯(通(tong)讯员 潘(pan)贵松)近日,荣(rong)乌新线南(nan)拒马河特大(da)桥(qiao)连续(xu)刚构85#左(zuo)幅边跨(kua)合(he)龙段(duan)顺利完成,这标志着该桥(qiao)正式进(jin)入大(da)桥(qiao)合(he)龙冲(chong)刺(ci)阶段(duan)。
       据悉(xi),南拒(ju)马河(he)特大(da)桥(qiao)(qiao)(qiao)(qiao)主(zhu)桥(qiao)(qiao)(qiao)(qiao)上部(bu)结(jie)构(gou)(gou)南拒(ju)马河(he)特大(da)桥(qiao)(qiao)(qiao)(qiao)主(zhu)梁采(cai)用(yong)预(yu)应力混凝(ning)土结(jie)构(gou)(gou),采(cai)用(yong)变高(gao)度单箱双室箱型断面。主(zhu)桥(qiao)(qiao)(qiao)(qiao)箱梁共设6个合(he)(he)(he)(he)(he)龙(long)(long)段,即4个边(bian)(bian)跨(kua)合(he)(he)(he)(he)(he)龙(long)(long)段、2个中跨(kua)合(he)(he)(he)(he)(he)龙(long)(long)段。合(he)(he)(he)(he)(he)龙(long)(long)段长2.0m。合(he)(he)(he)(he)(he)龙(long)(long)顺序(xu)采(cai)用(yong)先边(bian)(bian)跨(kua)、再中跨(kua)的(de)顺序(xu)进行(xing)合(he)(he)(he)(he)(he)龙(long)(long)段施(shi)工(gong),主(zhu)桥(qiao)(qiao)(qiao)(qiao)合(he)(he)(he)(he)(he)拢段采(cai)用(yong)挂篮施(shi)工(gong),预(yu)计10月20日完(wan)成(cheng)(cheng)特大(da)桥(qiao)(qiao)(qiao)(qiao)左幅(fu)(fu)合(he)(he)(he)(he)(he)龙(long)(long),11月14日完(wan)成(cheng)(cheng)特大(da)桥(qiao)(qiao)(qiao)(qiao)右幅(fu)(fu)合(he)(he)(he)(he)(he)龙(long)(long)。
       据了解,为保(bao)证特大桥成功合龙,项(xiang)目多次召开(kai)安全(quan)、质量专题会议(yi),反(fan)(fan)(fan)复(fu)研讨施(shi)工(gong)过(guo)程中(zhong)出(chu)现的(de)技(ji)术(shu)(shu)难(nan)题,不断优化施(shi)工(gong)方案。从张拉预(yu)应力束、拆除箱梁上的(de)施(shi)工(gong)荷载、焊接劲(jing)性(xing)骨(gu)架(jia)、张拉合龙束、绑扎底(di)板钢(gang)筋、安设(she)波纹管到(dao)浇筑混凝土,每一个(ge)环节都反(fan)(fan)(fan)复(fu)验算,每一道(dao)工(gong)序(xu)(xu)施(shi)工(gong)之(zhi)前都要反(fan)(fan)(fan)复(fu)检查,确(que)保(bao)每一位工(gong)人都对(dui)工(gong)序(xu)(xu)熟练于(yu)心,在(zai)施(shi)工(gong)过(guo)程中(zhong)技(ji)术(shu)(shu)人员还要全(quan)程实地跟(gen)踪,力求不产生(sheng)任(ren)何(he)差错(cuo)。
        同时,充(chong)分(fen)发(fa)挥(hui)党建(jian)引领作用,纵深推进(jin)“双(shuang)先工(gong)程(cheng)”“同心向党、共建(jian)雄安(an)”“交通先锋(feng)·桥(qiao)梁(liang)先行”等(deng)活动,成立党员突击队(dui)、青年突击队(dui)、工(gong)人先锋(feng)队(dui),采取(qu)“白+黑,晴+雨”的施(shi)工(gong)模式,所有参(can)建(jian)者全力以赴向特大(da)桥(qiao)合龙目标而冲刺(ci)。

南拒马河特大(da)桥连(lian)续刚(gang)构施工段
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