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中国首条市域铁路铺轨 “三局铺架”亮剑温州

2017-05-27 16:41:23   央广网

央广网温州5月26日消息(记者 雅萍)5月24日下午16时18分,在中铁三局桐岭铺轨基地现场,一声“开工令”后,全国首创、首条市域铁路——温州市域铁路S1线一期工程正式进入铺轨阶段。

温州市域铁路是全国首个制式创新的轨道交通项目和温州市轨道交通规划线网中最重要的主干线,也是“国家战略新兴产业示范工程”,更是国家发改委、住建部、国家铁路局与省政府签约协同推进的重点市域铁路示范项目。它是站间距、速度目标等介于国家铁路和城市轨道交通两者之间的一种交通制式。

据介绍,与地铁和城市轻轨相比,市域铁路具有速度快、投资少、审批快等特点,建成后将与国家铁路干线实现互联互通机制,增强城市对外辐射能力。

中铁三局桐岭铺轨基地

中铁三局集团承建的轨道I标起于桐岭站,终至SG5A标段。途经潘桥站、温州南站、下斜站、温州西站、德政站、龙霞路站,正线长度约16.44km,铺轨长度约32.76km,最高运行时速达120公里。

作为制式创新的轨道交通,中铁三局项目部采用跨高架线龙门吊与铺轨龙门吊相互配合的方式进行铺轨,使用“轨排法”施工。在桐岭铺轨基地将已经组装好的25m轨排利用跨高架线龙门吊将轨排吊装至轨道运输平板车上,利用轨道车将平板车上轨排运至施工现场进行铺设。铺设完成后再进行轨排粗调、钢筋绑扎、端子焊接、模板支立、轨道精调等工序。

据了解,在轨道精调工序中,中铁三局项目部采用了CPⅢ测量控制网技术,这是全国首次将此技术运用在市域铁路上。与原传统布设铺轨基标的方法相比,此技术不仅在测量精度方面有了显著提高,而且对于轨道施工的检测内容要更加系统和全面,同时,也改善了轨道交通运营过程中因轨道平顺性问题造成的设备磨耗和噪声振动现象。

第一节轨排

作为国内铺架行业的领军者,中铁三局加强技术创新与施工生产的深度结合,全面研发、掌握新型施工技术,填补铺架领域一项项“空白”,抢占了铁路建设核心技术的制高点,用双手和智慧支撑起多项“国内首次”的恢宏壮举。铁路铺架设备从昔日的老悬臂架桥机、长征系列铺轨机到目前的900吨提运架设备、有砟轨道铺轨机、无砟轨道铺轨机和闪光接触焊轨机,装备实力实现了从无到有、从弱到强的飞跃,机械总功率达到6万千瓦。曾创造单机日铺轨、日架梁、日铺隧道轨枕板、日生产轨节等6项全国纪录。

就这样,一路荣光,荣誉与滚滚铁流一起奔腾;一路创优,努力与条条铁轨一道蔓延。中铁三局拥有的多项工法专利,多项技术引领着行业科技尖端。在全国首创的温州市域铁路全线3个铺轨标段中率先完成双块式无砟轨道首件工程验收,在确保了铺轨工程顺利开展的同时,中国中铁“三局铺架”的金牌实力,也为中国交通新制式的圆满实现,奠定了坚实基础。

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