Core Insights - The collaboration between China Communications Second Navigation Engineering Bureau (CCSN) and Wuhan Institute of Rock and Soil Mechanics has led to the successful application of a new jet ultra-high-performance concrete technology in China's first underground hydrogen storage project in Daye, Hubei, marking a significant breakthrough in key structural technology for hydrogen storage engineering [1][2] - Hydrogen energy is recognized as one of the cleanest energy sources, but the large-scale and safe storage of hydrogen in China is still in the exploratory phase [1] - The underground hydrogen storage project will construct a cylindrical hydrogen storage chamber measuring 30 meters in length and 5 meters in diameter, capable of storing up to 4.5 tons of hydrogen at a pressure of 10 MPa [1] Technology Development - The new technology involves spraying concrete on the inner walls of the underground chamber to form an initial support structure, enhancing the chamber's strength and durability [2] - The newly developed concrete material exhibits higher strength and rapid setting properties, addressing issues of insufficient strength, poor durability, and weak impermeability found in traditional technologies, thus improving construction quality and efficiency [2] - The project team is also exploring the use of specialized robotic arms for concrete spraying, which enhances construction precision and quality stability [2] Industry Implications - The application of jet ultra-high-performance concrete technology in this project represents a new expansion of its use, which has previously been limited to marine structure protection and existing building reinforcement [2] - This advancement highlights the potential for cross-industry applications of the technology, suggesting future extensions into broader industrial fields [2]