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2秒消失!长春长168米大桥凌晨爆破场面堪比大片

2017-06-01 15:57:49   长春晚报

长春晚报记者陈琼

5月31日4时39分40秒,伴随着“砰”的一声巨响,陪伴了长春人30年的自由大桥桥面在2秒内消失,这座老桥完成了它的历史使命。150天后,时尚大气的新桥将展现在人们眼前。


5月31日4时许,服役30年的自由大桥结束了它的历史使命,完成爆破拆除。摄影 孙建一

帅爆了爆破现场堪比大片

为了自由大桥爆破这2秒钟,施工人员整整辛苦了两个月。爆破前一天,1300多公斤炸药被装填进4000多组指定孔位,施工单位对周边居民进行了广泛的安全告知。

5月31日凌晨,当人们还在睡梦中时,爆破进入最紧张时刻。

2时45分:施工单位全体工作人员到岗,准备前期工作。

3时5分:马路上车辆逐渐减少,偶有行人经过。

3时35分:寂静了整晚的城市悄然放亮。

3时40分:交警部门到达现场,准备对该路段进行临时封闭。

4时5分:施工单位、监理单位、公安、交警等相关部门负责人做最后商讨,将责任细化到个人。

4时10分:河堤路、自由大桥东西两侧便桥入口拉起警戒线,道路封闭。

4时15分:工作人员检查主桥桥面,确保桥面无人、无物。

4时30分:自由大桥主桥东西两侧开始戒严,300米以内没有行人和车辆。

4时36分:再次确认警戒情况。

4时38分:各爆破装置开启充电模式。

4时39分:爆破准备工作全部就绪。

4时39分40秒:“五、四、三、二、一,起爆!”伴随着“砰”的一声巨响,长168米的自由大桥桥面在2秒内消失不见。随后,技术人员对现场检查,排除可能遗留的危险源,确保两侧便桥的行车安全。

4时45分:路面解禁,恢复通行。

爆破现场,让人激动异常。长春晚报摄影记者记录下了这一刻。无法在现场感受的读者看后感慨留言:“帅爆了!”“简直像在拍摄大片!”

成功爆破后,便桥马上通车,在新的自由大桥修建完工前,便桥将暂时承担起此处的通行重任。摄影孙建一

旧桥涅槃迎来新生

“爆破非常成功!”伊通河综合治理工程自由大桥改建项目执行经理张东东告诉记者,爆破采用“微爆破”模式,待拆除部分落入河道内再破碎、辅助施工措施最少;对保留的桥墩、桥台及水下扩大基础影响最小,经检测,目前桥墩经历爆破后仍保留完好;爆破时产生的振动、扬尘、噪声均为瞬间产物,不持续存在,扰民最小;大型机械设备投入量最少,最大程度节约了施工成本;爆破钻孔可以与桥面系拆除形成流水施工,工期最短。

多桥换新颜扮美伊通河

翻建后的自由大桥,将给市民展现一座现代化桥梁,而这只是伊通河综合治理工程中的一座。未来,将有16座桥及1座轻轨桥换新颜,其中一座新建,一座翻建,其余为改造。

桥梁改造还将结合美化亮化,在综合考量桥位周边景观主题基础上,在确保桥梁安全稳定前提下,全面提升桥梁整体景观效果,优化桥头空间,实现交通可达性,让市民在一桥一景中品味长春。

责任编辑:都基强 CN065
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