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]