
Group 1 - The completion of the last segment of the Jinan Yellow River Tunnel marks a significant achievement for China Railway Construction Corporation (CRCC), showcasing the successful production of shield tunnel segments at the Yellow River segment production base [1] - The production base utilizes advanced fifth-generation large-diameter shield segment green intelligent production lines, significantly enhancing automation and operational efficiency, completing the task in just 10 months [1] - CRCC has restructured its technology innovation system to accelerate core technology breakthroughs and promote self-reliant technological innovation [1] Group 2 - The increasing urban parking difficulties have prompted CRCC's Shanghai branch to propose innovative deep underground space parking solutions, exemplified by the "EUP vertical smart garage" project [2] - The "EUP vertical smart garage" occupies only 286 square meters above ground but utilizes 836 square meters underground, allowing for parking of 304 vehicles, which is ten times the capacity of a conventional surface parking lot [2] - CRCC has achieved significant innovation milestones, with high-end hydraulic rock drilling machines and low-clearance full casing rotary drilling machines recognized in the State-owned Assets Supervision and Administration Commission's 2023 technology innovation achievements directory [2] Group 3 - CRCC has established an underground space research institute and allocated special R&D funds for underground space technology, focusing on key aspects from design to demonstration [3] - The company is advancing its "1+9+N" technology innovation system, which includes a central research institute and nine industry technology research institutes, fostering collaboration with universities and research institutions [3] - CRCC aims to enhance its market influence and achieve high-quality development through continuous technological advancements and the promotion of significant technological achievements [3]