轨道交通建设技术创新

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穿越泉域岩溶区 济南轨道交通4号线开启空载试运行
Xin Hua She· 2025-09-01 00:54
Core Points - The Jinan Metro Line 4 has commenced trial operation, which will enhance the overall metro network in Jinan [1] - The line, constructed by Jinan Metro Group and China Railway 14th Bureau, spans 40.3 kilometers and runs through densely populated areas along Jinan's main thoroughfare, alleviating traffic pressure [2] - The construction faced challenges due to spring water protection and complex karst geological conditions, with approximately 300 caves in a 1-kilometer section [2] - The construction team prioritized environmental protection by developing new eco-friendly materials and creating a diversion channel system to minimize impact on the underground environment [2] - Jinan Metro Line 8 also began trial operation on the same day, which will connect with Line 4, contributing to the alleviation of east-west traffic congestion and promoting economic development in the region [2]
6号线东段空载试运行,年底前开通运营!
Qi Lu Wan Bao Wang· 2025-08-26 11:09
Core Viewpoint - The official launch of the trial operation for the Jinan Metro Line 6 East Section marks a critical phase in the preparation for full operation, aiming for a high-standard opening by the end of the year [1][5]. Group 1: Trial Operation and Preparation - The trial operation commenced on August 26, transitioning the metro from construction to operational readiness, with a focus on training, emergency drills, and system testing [1]. - The trial period will last for three months, during which the operational team will validate the safety, usability, and reliability of key systems including vehicles, tracks, signals, and power supply [1]. Group 2: Project Details and Achievements - The East Section of Line 6 spans 19.5 kilometers, featuring 17 stations and one vehicle base, connecting significant areas such as Shandong University and the Central Business District [1]. - The project successfully passed engineering acceptance on August 22, utilizing advanced technologies like a dual-mode shield machine and an intelligent shield system for complex geological conditions [2]. Group 3: Future Steps - Following the trial operation, the East Section will proceed with operational drills, system acceptance, and safety evaluations to ensure a smooth and efficient launch by year-end [5].
壹探轨道|最新!济南地铁4号线全线“电通”
Qi Lu Wan Bao· 2025-06-23 10:45
Group 1 - The successful electrification of the Jinan Metro Line 4 marks a significant milestone, indicating that the entire power supply system is operational, which accelerates subsequent testing and debugging processes [1][5] - The project team has developed a four-phase dynamic testing plan to address the uneven construction progress across the 33 stations, ensuring efficient project advancement [3] - The "electricity connection" covers a total of 40.3 kilometers of underground lines and 33 stations, with each substation equipped with advanced smart systems for unmanned operation and energy management [5][6] Group 2 - The completion of the electrification allows for the testing of trains on powered tracks, including cold and hot sliding tests, and comprehensive debugging of station equipment [6] - Line 4 will serve as a crucial transportation artery connecting key areas in Jinan, alleviating congestion and enhancing the overall traffic network, while also stimulating commercial upgrades along the route [6]
壹探轨道|济南地铁8号线中段“跑”起来了,全线调试即将启动
Qi Lu Wan Bao· 2025-06-05 13:41
Group 1: Jinan Rail Transit Line 4 - The construction of Line 4 has achieved "long rail connection" between the sections from Weilizhuang to Quancheng Park Station, marking a significant milestone in the project [1][5] - The project team has adopted an innovative "machine laying + manual laying" construction mode, which effectively addresses challenges such as limited space and multiple cross operations, achieving a record of 670 meters of track laid in a single day [4] - Key sections of Line 4 utilize steel spring floating slab track bed technology to reduce noise by 10 to 15 decibels, enhancing passenger comfort and ensuring smooth train operations [5][7] Group 2: Jinan Rail Transit Line 8 - The hot sliding test for Line 8 has officially started, which is a critical step before the full line dynamic debugging begins [8][10] - The dynamic debugging is expected to last for about 2-3 months, during which the performance and compatibility of various systems will be comprehensively tested and optimized [12] - All main structures of Line 8 have been capped, and decoration and auxiliary structure construction are progressing rapidly, with a goal to complete the line by the end of the year [12] Group 3: High New District Cloud Bus - The construction of the High New District Cloud Bus project is in the final sprint phase, with all 32 stations capped and decoration work underway [15] - Train debugging has already commenced between the Rainbow Lake Park Station and Tangye East Road Station, aiming for successful operation by the end of the year [15] Group 4: Noise Reduction Measures - In light of the upcoming high school entrance examinations, all ongoing projects are implementing a "silent action" to ensure a quiet environment for students, demonstrating the commitment to community welfare while accelerating construction [17]
重庆轨道交通7号线一期全线最长区间TBM顺利始发
Zhong Guo Jing Ji Wang· 2025-04-30 02:54
Core Points - The "Electric Pioneer" TBM (Tunnel Boring Machine) has commenced operation, marking the start of the shield tunneling phase for the Chongqing Rail Transit Line 7 Phase I project, which spans approximately 28 kilometers and includes 18 stations [1][2] - The project aims to enhance the north-south transportation capacity in Chongqing, connecting various urban clusters and facilitating transfers with existing and under-construction rail lines [2] Group 1: Project Overview - The Chongqing Rail Transit Line 7 Phase I will connect key areas such as Xiyong, Hangu, and Jinfeng, with a total length of about 28 kilometers and 18 stations [1] - The tunneling section includes a 3.3-meter shallow cover segment and a challenging 1,332-meter segment with a 38‰ gradient, requiring significant engineering solutions [1] Group 2: Technical Specifications - The "Electric Pioneer" TBM has a working length of 85 meters, a diameter of 6.84 meters, and weighs approximately 500 tons, with a main drive power of 945 kW and a maximum thrust of 4,344 tons [2] - The TBM is designed to achieve an average daily advance rate of 9 to 12 meters while performing excavation, support, and ventilation tasks [2] Group 3: Engineering Innovations - The construction team has implemented 3D simulation technology for advanced planning and developed an intelligent control system for real-time data analysis to ensure efficient tunneling [1] - A special wear-resistant layer with a shear strength exceeding 350 MPa has been added to the TBM's cutting tools to enhance durability against hard rock formations [1]