据国网安徽建设公司芜湖GIL管廊工程项目执行经理孙明刚介绍，位于安徽省芜湖市境内的芜湖GIL管 廊工程，是甘肃——浙江±800千伏特高压直流输电工程的重要组成部分，隧道全长3600米，是目前内 地在建直径最大的电力管廊工程。 在长江江底挖掘隧道并敷设气体绝缘金属封闭输电线路，相较于地面高架方案，该地下管道敷设方式可 高效节约空间资源，不干扰长江航道通行，且输电稳定性不受地形、气候等外界因素影响。 "皖美电力号"盾构机由国网安徽建设公司、中铁十四局等单位联合研制。 中新网广州12月30日电 (蔡敏婕 刘福昌)"皖美电力号"盾构机30日在广州下线，将应用于国家电网穿越 长江的芜湖GIL(气体绝缘输电线路)管廊工程。 "皖美电力 号"盾构机在广州下线。中新网记者 蔡敏婕 摄 "针对穿越复杂地层的掘进需要，盾构机配备常压滚齿刀互换、主驱动伸缩、同步双液注浆等多项前沿 技术。"郭建豪表示，盾构机还配置掘进姿态智能控制、刀具磨损智能检测、超前地质预报等多项智能 化管控系统，以保障盾构机安全高效掘进。 号"盾构机在广州下线。中铁十四局 供图 记者看到，该盾构机刀盘涂装围绕该工程"四度七彩，首皖甘浙"品牌标识，以手挽手为主体 ...

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]