
10月24日,随着最后一片箱梁精准落架,醴娄高速关键控制性工程之一的虞塘河特大桥全幅贯通。至此,醴娄高速99座主线桥梁已全幅贯通45座、半幅贯通16座。
该桥位于湘乡市塘唐镇虞塘村和复兴村交界处,下穿500KV高压线,全桥长1080米,共10联35跨,30米箱梁278片,35米T梁84片。上部结构采用架桥机架设、支架现浇,在下穿500KV高压线垂直距离不满足架桥机安全作业区采用横向顶推施工工艺。下部结构桥台采用柱式台、桥墩采用柱式墩、墩台基础采用桩基础墩台径向布置。
施工前,项目部从现场踏勘、安全风险源识别、方案优选等方面入手,形成一整套可行性的施工管理制度。施工中,层层压实安全与质量管控责任,从工序衔接、材料供应、设备设施选用等方面入手,精心编制专项施工方案、强化交底工作、加大监管力度、织密隐患排查治理网,确保了该桥安全优质全幅贯通。
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