齐鲁晚报.齐鲁壹点季明智 在完成分阶段、分区间动车调试工作后，近日，济南轨道交通4号线建设迎来重要节点——全线动车调试全面启动。当前，基础功能基本 实现，将为4号线在调试完成后实现全自动运行(FAO)的全部功能提供坚实保障，也将为后续为期3个月的空载试运行创造有利条件。 动车调试是地铁试运行前的"最后一道关卡"，涉及车辆、信号、通信、综合监控、站台门等十多个系统的深度协同测试，如同一场精密 排练，确保所有环节都能精准配合。4号线应用了停车精度自学习、运行等级自动调整等智能新技术，让列车能够自主优化运行，这不仅 提升了线路的先进性，也给调试工作提出了更高的标准和要求。 为确保调试进度不受雨季、潮气等不利环境影响，济南轨道交通集团建投公司机电系统部牵头组织专项攻关，协调多专业资源提供全方 位保障。在调试现场，建投公司第三党支部联合参建单位组建的"联调突击队"成为攻坚主力，党员带头实行24小时轮班作业，全员坚守 现场，确保问题在第一时间得到响应和处置。团队严格遵循标准化流程，对每一项测试数据、每一个调试环节反复校验，严守安全质量 底线。 截至目前，4号线全线33座车站已全部实现主体结构封顶，全面进入站后工程施工阶段 ...

Core Insights - 2025 is a significant year for the construction of Jinan's rail transit, with multiple lines undergoing various stages of development [1] Group 1: Line 4 - All 33 stations have completed the main structure and are entering the dynamic debugging phase [3] - Electromechanical decoration has commenced across all stations [3] Group 2: Line 8 - The line consists of 14 stations, all of which have been capped and are now undergoing decoration and electromechanical installation [5] - The line has achieved bridge and tunnel connectivity and has initiated dynamic debugging [5] Group 3: Cloud Bus in Jinan High-tech East District - All 32 stations have been capped, with ongoing decoration and electromechanical equipment installation [7] - Dynamic debugging has started for the entire line [7] Group 4: Line 7 - All 32 stations are under construction, with 29 stations having completed the main structure [9] - 30 sections have achieved double-line connectivity, with civil construction entering a critical phase [9] Group 5: Line 9 - The line includes 23 stations, all of which are under construction, with 11 stations having completed the main structure [10] - 8 sections have achieved double-line connectivity, with 7 shield machines currently in operation [10] Group 6: Additional Line - A total of 12 stations are under construction, with 9 stations having completed the main structure [12] - 6 sections have achieved double-line connectivity, with 7 shield machines actively digging [12]

Core Viewpoint - The Jinan Metro Line 4 has made significant progress, with parts of the line ready for train operation, signaling an imminent opening that will transform the commuting experience for residents [1][9]. Group 1: Project Overview - Jinan Metro Line 4 is a crucial east-west urban artery, addressing severe traffic congestion on major roads like Jing Shi Road, especially during peak hours [3][4]. - The line spans approximately 40.3 kilometers with 33 underground stations, including 16 transfer stations, connecting key areas such as Jinan West Station, the Central Business District, and various urban districts [4][5]. Group 2: Economic and Urban Impact - The opening of Line 4 is expected to alleviate traffic pressure, enhance regional connectivity, and stimulate economic growth along its route, thereby boosting the real estate market and attracting talent [5][7]. - The line will significantly reduce commuting times, with travel from Jinan West Station to the Central Business District taking around 40 minutes [5]. Group 3: Government Commitment and Safety Measures - The local government, represented by Mayor Liu Qiang, emphasizes the importance of construction quality, safety, and environmental protection during the project's execution [9][10]. - Four key signals were communicated during the recent inspection: the project is on track for a year-end opening, operational preparations are ongoing, safety measures are prioritized, and traffic organization in key areas is being optimized [10][13]. Group 4: Historical Context and Challenges - Jinan's metro construction faced historical delays due to the city's unique geological features, particularly its famous springs, which posed challenges for underground construction [17][18]. - Despite these challenges, the construction team has accelerated the timeline from an initial eight years to a projected four years, showcasing remarkable efficiency and commitment [18][20].

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]

Core Points - The completion of the last pair of steel rails at the Shandong University East Road Station marks the full track connection of the Jinan Metro Line 4, laying a solid foundation for the line's opening by the end of this year [1][4] Group 1: Project Overview - The Jinan Metro Line 4 is a major east-west transportation artery in Jinan, with a total length of 40.3 kilometers and 33 stations [3] - The total length of the track laid is 85.074 kilometers, indicating a large-scale construction project [3] Group 2: Challenges and Innovations - The project faced multiple challenges, including long lines, tight schedules, dispersed work areas, frequent handovers, and complex environments [3] - To minimize environmental impact, the project team focused on overcoming technical challenges related to vibration and noise reduction [3] - A significant innovation was the optimization of the traditional cast-in-place spring floating slab track bed to a prefabricated assembly process, which improved construction precision and efficiency while reducing future noise levels by 10 to 14 decibels [3] Group 3: Construction Efforts - During peak construction, seven work fronts were opened simultaneously, utilizing three rail machines and 14 intelligent track-laying devices, with over 400 workers on round-the-clock shifts [3] - The project achieved a record of laying 670 meters of track in a single day through meticulous planning and dynamic optimization [3] - Safety and quality were prioritized throughout the construction process, with strict implementation of detailed control requirements [3][4] Group 4: Progress and Future Steps - The Jinan Metro Line 4 has successfully completed two major milestones: "tunnel completion" and "track completion," setting the stage for subsequent key phases such as electrical testing, joint debugging, and trial operations [4]

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]