"试运行"的正式启动，标志着6号线东段已进入到运营筹备最紧张、最关键的阶段。接下来6号线东段将稳步推进运营 演练、系统验收、三权交接、"跑图"、安全评估等专项工作，确保年底前高标准高质量开通运营。 "试运行"是地铁从建设阶段过渡至运营阶段不可或缺的重要环节。当前，地铁运营人员已提前进驻6号线东段17座车 站，在为期3个月的试运行期间，将模拟真实运营环境，聚焦人员专业技能培训、多场景应急演练、全自动运行场景功 能测试、系统联调联试、规章制度编制等关键工作，对车辆、轨道、信号、供电等关键系统进行综合验证，全面验证 运营组织管理和设备设施系统的安全性、可用性及可靠性，确保未来载客运营的安全、可靠、高效。 6号线东段为山东大学站至梁王站（均为工程名）区段，全长19.5公里，设17座车站和1座车辆基地，串联起山东大 学、中央商务区、软件园、济南东站等重要功能区域，并与既有2号线、3号线实现换乘。线路通车后，将大幅提升沿 线市民出行效率，增强区域经济联系，为济南城市发展注入新动力。 6号线东段已于8月22日顺利通过项目工程验收。建设过程中不断攻坚克难，在天泺路站至软件园站区间，采用集团所 属济南重工自主生产的首台双模盾构 ...

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]

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]

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]