据项目施工方中铁十四局介绍，4号线泉城公园站至千佛山站区间是国内首个穿越泉域岩溶区的地 铁区间。"此区间穿越近300个大小不一的溶洞，就像在'蜂巢'中挖隧道，施工难度大。"中铁十四局济 南地铁4号线项目技术负责人宋增亮说，依托超前地质预报技术及智慧化管理平台，施工团队对隧道前 方地层进行全方位扫描，详细探明区间内溶洞地质情况，并对盾构设备进行针对性设计，采用土压平衡 盾构机防止地面沉降，有效解决岩溶区间隧道掘进的技术难题。 据介绍，4号线泉城公园站埋深比其他站点抬升了约7米，从地下"冒"出来，成为一个"半地下车 站"。在个别关键车站的施工中，施工团队还在车站两侧和基底设计了通水的"U型"地下水导流通 道。"整个车站就像一个'连通器'，确保泉水供给无虞。"宋增亮说。 据介绍，此次与济南轨道交通4号线一同开通的还有8号线和6号线东段，全市轨道交通运营总里程 增加到248公里。 新华社济南12月27日电（记者张昕怡、邵鲁文）27日上午，随着济南轨道交通4号线首发列车平稳 进站，国内首条穿越泉域岩溶区地铁正式通车运行。 "在泉城建地铁，最大困难是确保地铁与泉水和谐共生。"济南轨道交通集团规划技术中心技术管理 部副部长 ...

Core Points - The official launch of the empty test run for the eastern section of Jinan Metro Line 6 marks the transition to the operational preparation phase, laying the groundwork for its opening by the end of the year [1][5] - The eastern section spans 19.5 kilometers, featuring 17 stations and 1 vehicle base, connecting key areas such as Shandong University and the Central Business District, enhancing the regional transit network [3][5] Group 1 - The project successfully passed engineering acceptance on August 22, with significant technological advancements employed during construction, including the use of Jinan's first dual-mode shield machine and an intelligent shield system for real-time monitoring [3][5] - The construction faced challenges, particularly in complex geological areas, where innovative techniques were developed to address deep excavation issues, ensuring the project's progress [3][5] Group 2 - The three-month test run will simulate real operational conditions, focusing on professional training, emergency drills, and comprehensive system testing to ensure safety and reliability for future passenger operations [5] - The opening of Line 6 is expected to significantly improve travel efficiency for residents along the route and enhance economic connectivity in the region, providing a boost to Jinan's urban development [5]

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].

Core Viewpoint - The commencement of the trial operation for the Jinan Metro Line 6 East Section marks a significant step towards its full operational readiness, aiming for a launch by the end of the year [1][9]. Group 1: Trial Operation - The trial operation is a crucial transition phase from construction to operation, involving a three-month period to simulate real operational conditions [3]. - During this period, the focus will be on professional skills training, emergency drills, automated operation testing, system integration, and regulatory framework development [3][9]. - Comprehensive verification of key systems such as vehicles, tracks, signals, and power supply will ensure safety, reliability, and efficiency for future passenger operations [3]. Group 2: Line Details - The East Section of Line 6 spans 19.5 kilometers, featuring 17 stations and one vehicle base, connecting significant areas like Shandong University and the Central Business District [5]. - The line will enhance travel efficiency for residents along the route and strengthen regional economic ties, contributing to Jinan's urban development [5]. Group 3: Construction Achievements - The East Section successfully passed project engineering acceptance on August 22, overcoming various construction challenges [7]. - Innovative technologies such as a dual-mode shield machine and an intelligent shield system were employed to address complex geological conditions during construction [7]. - Research on deep foundation techniques in water-rich areas has provided valuable insights for similar engineering projects [7].