"我们采用国内较为先进的群枕式铺设工艺，日均铺轨进度达2.5公里，较传统铺轨方式工效提高 50%。"中铁二局哈铁项目部副经理董正敏介绍，施工过程中他们广泛应用信息化、智能化管理手段， 通过智能工程线调度信息平台，实现对铺轨机组、长轨运输列车等关键设备的远程实时监测，保证了各 单位施工运行安全。 据介绍，下一步，哈伊高铁项目将全面转入线路精调、"四电"工程和联调联试阶段。哈伊高铁建成 通车后，将进一步完善我国东北地区高速铁路网络结构，对促进区域经济社会发展、推动东北全面振兴 具有重要意义。（记者徐凯鑫、刘赫垚） 据了解，哈伊高铁于2024年5月28日正式启动铺轨，为确保施工进度和质量，中国铁路哈尔滨局集 团有限公司组织施工单位结合当地全年气候特征，加大物资、机械设备投入力度，成功克服高寒地区气 温低、施工期短等难题。 11月25日，在黑龙江省绥化市庆安县永华村哈伊高铁哈铁段铺轨现场，施工方中铁二局的四名工人 手持电动扳手，将最后一对钢轨螺栓拧紧，标志着我国"十四五"重点工程哈伊高铁全线铺轨贯通，为后 续联调联试奠定基础。 哈伊高铁是我国"八纵八横"高铁网京哈—京港澳通道的重要延伸，也是在建纬度最高、全年温差最 ...

中国最北高铁全线铺轨贯通 中新社哈尔滨11月25日电 (记者 史轶夫)中国铁路哈尔滨局集团有限公司25日发布消息称，中国在建最 北高铁哈伊高铁全线铺轨贯通，为后续联调联试奠定基础。 哈尔滨至伊春高铁是中国"八纵八横"高铁网京哈—京港澳通道的重要延伸，也是中国在建纬度最高、全 年温差最大，且首条穿越岛状多年冻土区的高速铁路，具有岛状冻土带分布零散、有效施工期短等施工 难题。 来源：中国新闻网 编辑：陈俊明 广告等商务合作，请点击这里 本文为转载内容，授权事宜请联系原著作权人 中新经纬版权所有，未经书面授权，任何单位及个人不得转载、摘编或以其它方式使用。 关注中新经纬微信公众号(微信搜索"中新经纬"或"jwview")，看更多精彩财经资讯。 11月25日，哈伊高铁全线铺轨贯通。图为在黑龙江省绥化市庆安县永华村哈伊高铁哈铁段铺轨现场。 (哈铁供图) 哈伊高铁于2024年5月28日正式启动铺轨，中国铁路哈尔滨局集团有限公司组织施工单位结合当地全年 气候特征，加大物资、机械设备投入力度，日均铺轨进度达2.5公里，较传统铺轨方式工效提高50%。 同时，广泛应用信息化、智能化管理手段，通过智能工程线调度信息平台，实现对铺轨 ...

人民财讯11月25日电，哈尔滨至伊春高铁是我国"八纵八横"高铁网京哈至京港澳通道的延长线，是"十 四五"重点规划项目。11月25日，在绥化市庆安县，随着最后一段25米钢轨人工铺设完成，哈伊高铁全 线铺轨贯通。下一步，哈伊高铁将转入线路精调、电务工程施工和联调联试阶段。全线通车后，哈尔滨 至伊春的旅客列车运行时间，将从现在的7小时左右大幅缩短至2小时左右。 （文章来源：央视新闻） ...

Core Viewpoint - The construction of the Harbin-Yichun High-Speed Railway (Ha-I Railway) is progressing rapidly, with significant advancements made during the recent holiday period, highlighting the commitment to infrastructure development in China. Group 1: Project Overview - The Ha-I Railway is an extension of China's high-speed rail network, specifically the Jingha to Jinggang'ao corridor, and is notable for being the highest latitude railway that traverses permafrost regions [1] - The railway spans a total length of 318 kilometers, with a design speed of 250 kilometers per hour, significantly reducing travel time from Harbin to Yichun from approximately 7 hours to about 2 hours upon completion [16] Group 2: Construction Progress - During the National Day holiday, it is expected that 40 kilometers of track will be laid, achieving 35% of the total track-laying task [15] - The track-laying process involves advanced machinery, with a single track-laying machine capable of laying at least 2.5 kilometers of steel rail in one day [5] Group 3: Technical Innovations - The railway utilizes seamless rail technology, which enhances track smoothness, safety, and passenger comfort by eliminating the noise associated with traditional rail joints [9] - The construction process includes the use of specialized machinery for ballast placement and track alignment, ensuring optimal track conditions [13] Group 4: Regional Impact - Currently, 8 out of 13 prefecture-level cities in Heilongjiang Province have operational high-speed rail services, with a total operational mileage exceeding 1,400 kilometers, indicating a shift towards more accessible rail transport [18]

Core Viewpoint - The construction of the Harbin-Yichun High-Speed Railway (Ha-I High-Speed Railway) is a significant project in China's high-speed rail network, enhancing connectivity in the northern region and expected to greatly reduce travel time for passengers [1]. Group 1: Project Overview - The Ha-I High-Speed Railway is part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, extending from the Beijing-Harbin to the Beijing-Guangzhou corridor [1]. - The railway is currently under construction, with the Harbin to Tieli section undergoing track laying [1]. - The total length of the railway is 318 kilometers, with a designed speed of 250 kilometers per hour [1]. Group 2: Construction Progress - As of now, track laying is in progress, with 500-meter long steel rails being laid and secured by workers [1]. - The construction involves the use of specialized machinery, such as rail laying machines and ballast cars, to ensure precision and efficiency in the process [1]. - The project commenced in October 2021 and is expected to be completed and operational by next year [1]. Group 3: Impact on Travel - Once completed, the travel time from Harbin to Yichun will be reduced from approximately 7 hours to around 2 hours [1]. - The railway will also connect with the existing high-speed rail network in Heilongjiang Province, enhancing travel options for passengers [1].

Core Insights - The article highlights the significance of railway construction in Northeast China, particularly focusing on the challenges posed by permafrost and extreme weather conditions, and the innovative techniques employed to address these issues [1][5]. Group 1: Railway Construction Challenges - The Harbin-Yichun High-Speed Railway (Ha-I High-Speed Railway) is the northernmost high-speed railway under construction in China, designed to traverse areas with permafrost, where temperatures can drop to as low as -40°C [5]. - The construction of railways in permafrost regions faces two major challenges: frost heave and thaw settlement, which can lead to significant structural issues [9]. Group 2: Role of Engineering Testers - Engineering testers play a crucial role in ensuring the quality of railway projects, responsible for geological surveys and comprehensive quality control throughout the construction process, earning them the title of "railway guardians" [5][9]. - The work of engineering testers involves not only physical labor in challenging environments but also requires advanced professional knowledge to assess soil conditions and determine appropriate construction materials [9]. Group 3: Innovative Techniques - Concrete rebound testing is utilized to estimate the strength of concrete by measuring the rebound distance of a hammer after striking the surface, which serves as an indicator related to its strength [7]. - After extensive testing, results can guide workers in selecting the type of fill material for the roadbed based on the moisture content of the permafrost, ensuring the durability and quality of the high-speed railway [9].