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世界最长高寒地区快速铁路铺轨全线贯通(图)

2017-09-06 20:00:39   中国经济网

经济日报—中国经济网北京9月6日讯 (记者齐慧)6日,世界最长高寒地区快速铁路——由中铁二十三局等铁路单位建设的哈(尔滨)佳(木斯)铁路全线铺轨贯通,为2018年6月开通运营奠定了基础。

2014年开工的哈佳铁路,自哈尔滨引出,经宾西、方正、得莫利、依兰至有“中国东极”之称的佳木斯,共设有14个车站。线路全长343公里,设计时速200公里每小时,为客货共线快速铁路。

2016年9月,哈佳铁路进入铺轨施工阶段,分别从哈尔滨、佳木斯两端对向铺轨,在方正县对接“合龙”。

中铁二十三局哈佳铁路工程指挥部指挥长袁正国告诉记者,全线共穿行4座隧道、120座桥梁,其中桥梁铺轨作业宽度仅有8米,要同时容纳轨料运输、接触网挂线等多项工种作业。铺轨期间,有近三分之二的铺轨作业在荒野完成。

袁正国表示,哈佳铁路全线处于高寒地区, 钢轨承受温度应力大。为保证线路运营安全,施工时线路锁定轨温和锁定焊接温度限定在18至19摄氏度之间。为此,中铁二十三局采用边铺设边焊接的流水线作业,夏天晚上施工,抢在入冬前完成钢轨焊接。技术人员提前配备多组长钢轨运输车、重型轨道车、新型焊轨机等大型施工设备,使铺轨效率大幅提高。

哈佳铁路客运专线有限责任公司副总经理李雄飞告诉记者,哈佳铁路预计2018年3月进入调联调试阶段,2018年6月可望开通运营。哈佳铁路开通后,沿线超8成地区将结束不通火车的历史。哈尔滨到佳木斯的火车运行时间将从现在的近7个小时,缩短至1小时50分。

与此同时,哈佳铁路将与哈(尔滨)牡(丹江)、牡(丹江)佳(木斯)客专,共同构成黑龙江省高速铁路网骨架。建成后,哈佳铁路还将对接哈大高铁并入全国高速铁路网络,对促进中俄贸易、加快黑龙江省经济发展有重要意义。

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