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我国最长高寒地区快速铁路铺轨全线贯通

2017-09-06 11:46:47   央广网

央广网北京9月6日消息(记者郭淼)据中国之声《央广新闻》报道,今天(6日)上午10点58分,世界最长的高寒地区快速铁路——新建哈(尔滨)佳(木斯)铁路,全线铺轨贯通,这标志着该线将进入线路精调阶段,为2018年6月开通运营奠定了基础。

新建哈佳铁路是2014年开工,这条铁路从哈尔滨引出,经宾西、方正、得莫利、依兰到我国最东部城市佳木斯,共设有14个车站。线路全长343公里,设计时速每小时200公里,为客货共线快速铁路。

中铁二十三局哈佳铁路工程指挥部指挥长、二公司副总经理袁正国对中国之声记者表示,哈佳铁路通车后沿线超8成地区将结束不通火车的历史,也把将直接拉近哈尔滨至佳木斯及其周边城市的时空距离。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,极大地改善居民出行条件。

哈佳铁路建成后,与哈(尔滨)牡(丹江)、牡(丹江)佳(木斯)客专,共同构成了黑龙江省高速铁路网骨架,可以轻松打造龙江东部的“金三角”,构建龙江两小时经济圈, 辐射全省50%的人口和经济总量,带动沿线经济的快速发展。对于黑龙江“东部城市群”融入“哈(尔滨)长(春)城市群”,主动承接其产业转移,开展产业协作,促进区域协调发展都将有着积极的作用。同时,哈佳铁路将对接哈大高铁并入全国高速铁路网络,对连通中俄新通道、促进中俄贸易、加快黑龙江省经济发展有重要意义。

据袁正国介绍,2016年9月和2017年5月,哈佳铁路两个铺轨标段分别进入施工阶段,由中铁二十二局、二十三局分别从哈尔滨、佳木斯两端对向铺轨。全线穿行4座隧道、120座桥梁,其中桥梁铺轨作业宽度仅有八米,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。

哈佳铁路全线处于高寒地区, 钢轨承受温度应力大,线路锁定轨温及钢轨锁定焊接温度要求极高, 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。

此外,记者从现场了解到,截至8月底,新建哈佳铁路主体工程已完成9成,预计2018年3月进入调联调试阶段,2018年6月有望开通运营。

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