4月12日下午,随着淮沭新河特大桥西偏泓钢栈桥桥头台背回填完毕,宿连高速公路宿豫至沭阳段全线控制性重点工程淮沭新河特大桥西偏泓钢栈桥施工便道顺利贯通。
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宿连高速公路宿豫至沭阳段淮沭新河特大桥桥梁长2080.2米,路基长3246米。其中,西偏泓钢栈桥施工采用的是常规的导向架“钓鱼法”施工工艺,通过采用全站仪三维坐标法,在便桥上设置临时控制点对每根钢管桩和钢护筒进行放样定位,随后对钢管桩进行沉放、截桩、夹桩施工以及钻孔平台施工。
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为了加快西偏泓钢栈桥顺利贯通,宿连高速公路宿豫至沭阳段3标项目部精心组织协调,积极主动加强与淮沭新河管理所、北丁集乡、沭阳县建设服务指挥部进行协调沟通,先后解决了临时用地征收、林木砍伐等一系列难题。为了最大化降低之前极端低温天气带来的不利影响,项目部通过对物资设备提前配备、对施工计划有效落实、对协作队伍合理调配,有效扭转了西偏泓钢栈桥施工进度滞后的局面。
淮沭新河特大桥西偏泓钢栈桥施工便道的贯通,打通了淮沭新河特大桥施工物资设备进出的黄金通道,为下一阶段的钻孔桩和桥梁下部结构施工赢得了宝贵时间,为全线打造“一带一路”标杆示范样板项目奠定了坚实的基础。
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