来源：中国新闻网 (新春走基层)昌九高铁正线接触网支柱组立全部完成 中新网九江2月9日电 (吴鹏泉 赵薇)9日，在昌九高铁建设施工现场，最后一根高9.5米的H型支柱被精准 吊装到位。据施工方中铁武汉电气化局昌九项目部介绍，这标志着昌九高铁正线接触网支柱组立全部完 成，为后续接触网架设与设备安装打下基础。 "往左微调两度，好，慢放！"当日施工现场，中铁武汉电气化局昌九项目部接触网作业队队长王晨阳通 过对讲机发出施工指令。随着他的指挥，支柱底部的法兰盘与基础螺栓精准对接。四名工人迅速上前， 用扳手将螺母紧固。 接触网是沿铁路上空架设向列车供电的特殊输电线路，由基础与支柱、支持装置、接触悬挂等构成，承 担着将牵引变电所电能直接输送给电力机车的重要任务，其质量和工作状态直接影响线路运输能力。 为实现支柱精准安装，昌九高铁施工团队运用全站仪与RTK测量仪器，对基础坐标与螺栓间距进行双重 校核，将施工精度控制到毫米级。 昌九高铁是中国"八纵八横"高速铁路网京港通道的重要组成部分，正线全长137.7公里，设计时速350公 里。 铁路部门表示，昌九高铁建成通车后将进一步完善中国高速铁路网布局，加强长江中游城市群、环鄱阳 湖城 ...

Group 1 - The Chang-Jiu High-Speed Railway has officially entered the overhead line construction phase with the installation of the contact network tensioning cable starting near Nanchang Changbei Airport Station [1] - The contact network project will involve the installation of 334.2 kilometers of contact lines, 26.2 kilometers of return lines, and 164.1 kilometers of lightning protection lines, with an expected construction period of 7 months [1] - Advanced BIM technology is being utilized to simulate the construction process, ensuring that each step meets design standards, while constant tensioning equipment is used to control the tension and straightness of the cables with millimeter-level precision [1] Group 2 - The Chang-Jiu High-Speed Railway is a key component of the national "Eight Vertical and Eight Horizontal" high-speed rail network and is part of the 102 major engineering projects outlined in the national "14th Five-Year Plan" [2] - The railway spans 138 kilometers from Lushan Station in Jiangxi to Nanchang East Station, enhancing connectivity between the Yangtze River Middle Reaches urban agglomeration, the Poyang Lake urban agglomeration, and surrounding cities in the Yangtze River Delta and Guangdong-Hong Kong-Macau regions [2] - The completion of the railway will significantly improve the high-speed rail network layout in China, facilitate the development of the Yangtze Economic Belt, and enhance the transportation infrastructure level in Jiangxi Province, promoting high-quality economic and social development along the route [2]

Group 1 - The Huangbai Railway's Guangxi section is under accelerated construction, part of the Western Land-Sea New Corridor, which is crucial for enhancing regional railway network layout and overall transport capacity [1][3] - The Makou Hanjiang Grand Bridge in Hubei is expected to be completed in November, significantly reducing travel time from Wuhan to Tianmen from over 2 hours to about 1 hour [3][5] - The Changjiu High-Speed Railway in Jiangxi is progressing with 84 construction sites operating simultaneously, expected to be completed by 2027, enhancing connectivity with the Guangdong-Hong Kong-Macao Greater Bay Area [5][7] Group 2 - Over 10,000 builders are working in Xiong'an New Area, focusing on high-quality construction, with a 500 kV substation expected to be operational by the end of November, improving clean energy supply to over 95% in the core area [7][8]

the first 0 251 100 【五月二十日 2 据了解，庐山城际场是既有昌九城际铁路的关键运输要塞，高峰期每3分钟就有一趟列车通过。所谓"I级封锁施工"，是指在铁路营业线上进行的最高级别施 工，必须在规定的"天窗时间"内完成所有作业并恢复线路正常运行。此次昌九高铁庐山城际场站改施工需要在4个夜间累计22个小时的"天窗时间"内，共完 成12组既有道岔、223米轨排等关键部件的拆除、移出、组装、拼接等工序。 9月16日凌晨，昌九高铁庐山城际场站场改造I级封锁施工正式启动。此次施工将分四个夜间时段，进行道岔更换、信号联锁调试等作业，是全线建设过程中 等级最高、风险最大、组织最复杂的站改施工，昌九高铁迎来全线建设中最关键的技术攻坚战。 （总台记者 谢元森 王婧） 此次站改完成后，昌九高铁将具备引入庐山铁路枢纽的条件，实现与昌九城际铁路的互联互通。建成通车后，从九江去往广州、深圳方向的高铁列车可直接 通过昌九高铁运行，相比从昌九城际铁路通行，可压缩运行时间约10分钟。 ...

Core Points - The trial operation of the Chang-Jiu High-speed Railway segment from Nanchang East to Hejia has commenced, marking a significant step towards its official opening [1][3] - The trial run is crucial for testing train operation parameters, simulating faults, and conducting emergency rescue drills, providing a scientific basis for the railway's official launch [1][3] Summary by Sections Trial Operation Details - The trial segment is 21 kilometers long, connecting Nanchang East Station to Hejia and linking with the existing Beijing-Hong Kong High-speed Railway [3] - The operation will alleviate transportation pressure at the Nanchang railway hub, reducing train travel time by approximately 7 minutes [3] Connectivity and Impact - The Chang-Jiu High-speed Railway is part of the national "Eight Vertical and Eight Horizontal" high-speed rail network, specifically the Beijing-Hong Kong corridor [4] - Once fully operational, it will enhance connectivity among urban clusters in the Yangtze River middle reaches and surrounding areas, supporting regional economic development [4]

Core Points - The Chang-Jiu High-Speed Railway (昌九高铁) has entered the joint debugging and testing phase, with the first segment from Nanchang East Station to Hejia Line officially starting on June 3 [1] - The total length of this segment is 21 kilometers, and it is expected to be operational by the end of the year, allowing for direct access to existing rail lines without detours [1] - This railway is part of the national "Eight Vertical and Eight Horizontal" high-speed rail network plan, designed to enhance connectivity between urban clusters in the Yangtze River middle reaches and surrounding areas [2] Summary by Category Project Development - The joint debugging and testing phase is a critical step before the railway can officially open, involving tests on tracks, contact networks, communication, and signaling systems [1] - The testing will ensure that all subsystems meet the technical standards required for dynamic acceptance [1] Economic and Regional Impact - The completion of the Chang-Jiu High-Speed Railway will improve the high-speed rail network layout in China and enhance the transportation infrastructure in Jiangxi Province [2] - It will support the integration of the "Chang-Jiu Integration" comprehensive transportation system and facilitate economic development along the route [2]