文/片记者夏侯凤超杜春娜 实习生魏子尧济南报道 头顶是万吨湖水 脚下是城市脉搏 光,是城市最温柔的呼吸。当泉城入夜,超然楼的飞檐被金色灯带勾勒,泉城路的人潮涌过城市霓虹,但鲜少 有人知道,在这片繁华之下28米深处,藏着一条特殊的"光明动脉"——这是全省首条采用盾构技术穿越大 型湖泊的电力通道,也是一条为城市核心文旅商圈输送能量的"生命线"。近日,记者随济南电力巡检员下 到此处,触摸这条"湖底动脉"的真实脉搏。 这是距离繁华最近的寂静之地。行走在隧道地面的铁板上,王云龙与同事肖越、张朝阳的脚步声显得格 外清晰。而在日常巡检中,他们需要在寂静的环境中,逐段排查电缆温度与接头状态。 "这是我们的通道监测设备,上面的监测数据分别是一氧化碳、氧气等指标,这是用来监测空间安全 的。"国网济南电力公司电缆运检中心的肖越说,这套监测设备与后台系统相关,一旦数据有异常,后台24 小时值班人员会立即发现,并派检修员第一时间查看,"我们管这叫'双保险'——人盯设备,设备盯隐患。" 11日上午,张灯结彩的大明湖年味儿十足,人流如织。湖边一个不起眼的入口处,国网济南电力公司电缆运 检中心的王云龙已经在等候着我们。"别看外面这么热闹,接 ...

Core Viewpoint - The "Wanmei Electric Power" shield tunneling machine has been launched in Guangzhou and will be utilized in the State Grid's Wuhu GIL (Gas Insulated Transmission Line) corridor project crossing the Yangtze River [1][3]. Group 1: Project Overview - The Wuhu GIL corridor project, located in Wuhu City, Anhui Province, is a crucial part of the Gansu-Zhejiang ±800 kV UHVDC transmission project, featuring a total tunnel length of 3,600 meters, making it the largest power corridor project under construction in terms of diameter in inland areas [3][5]. - The underground pipeline installation method, as opposed to an elevated ground solution, efficiently saves space, does not interfere with Yangtze River navigation, and ensures transmission stability unaffected by terrain and weather [3]. Group 2: Technical Specifications - The "Wanmei Electric Power" shield tunneling machine has a cutter head diameter of 12.13 meters, a total length of 150 meters, and a weight of 2,300 tons, with a total power of 6,900 kW and 116 cutter tools, including 72 replaceable tools for normal pressure [5]. - The machine is equipped with advanced technologies for tunneling through complex geological conditions, including interchangeable normal pressure rolling cutters, main drive telescoping, and synchronous double-liquid grouting [5]. - Intelligent control systems for tunneling posture, cutter wear detection, and advanced geological forecasting are integrated to ensure safe and efficient tunneling operations [5]. Group 3: Project Timeline and Impact - After factory manufacturing, the shield machine will be disassembled and transported to the construction site via water and land, with assembly and testing expected to begin, aiming for tunneling to commence by the end of March 2026 [7]. - This tunnel represents the most geologically complex and challenging power shield tunnel currently under construction on the Yangtze River, and its completion will effectively address cross-river transmission challenges, enhancing the power exchange capacity and reliability of the East China power grid [7].

Core Insights - The event "New Tian Gong Kai Wu - Technology Achievements Release Conference" focused on breakthroughs in China's shield tunneling technology, showcasing innovations by China Railway Construction Heavy Industry Co., Ltd. and China Railway 14th Bureau Group Co., Ltd. [1][3] - The "Jinghua" is the first domestically produced 16-meter ultra-large diameter shield machine, marking a significant advancement in China's tunneling industry towards intelligent technology. [1] - Over the past 30 years, China's shield tunneling technology has transitioned from reliance on imports to independent innovation, with large diameter shield machines being crucial for major infrastructure projects. [1] Company Developments - China Railway Construction Heavy Industry has developed advanced geological forecasting and intelligent tunneling systems, enhancing the operational capabilities of domestic shield machines. [1] - China Railway 14th Bureau successfully executed a "millimeter-level crossing" during the construction of the Qinghuayuan tunnel, maintaining ground subsidence within 1 millimeter, ensuring the safety of urban metro operations. [3] - The company implemented a unique four-part micro-subsidence control technology to address safety challenges in complex geological conditions during shield tunneling. [3] Industry Trends - The shield tunneling industry in China is entering an era of intelligent technology, reflecting a broader trend towards modernization and efficiency in construction practices. [1] - The development of ultra-large diameter shield machines positions China at the high point of the global underground engineering equipment industry chain and value chain. [1] - The ongoing digital exhibition "New Tian Gong Kai Wu - Technology Achievements Exhibition (First Phase)" highlights various technological achievements, including advancements in open-source technology and new energy storage. [3]