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]

该技术一举攻克传统喷射混凝土初支结构"强度不足、耐久性欠佳、抗渗性薄弱"等痛点，显著提升 了施工质量与效率，为我国岩洞储氢产业的安全化、高效化发展奠定了关键技术基础。 值得关注的是，为进一步保障施工精度与质量稳定性，项目团队同步开展了喷射超高性能混凝土专 用机械臂的现场应用探索，实现了"材料创新+装备升级"的协同突破，为该技术的规模化推广与产业化落 地积累了宝贵的工程经验。 近日，由中交第二航务工程局有限公司（下称"二航局"）与中国科学院武汉岩土力学研究所联合研 发的喷射超高性能混凝土新技术，在国内首座岩洞储氢项目——湖北大冶岩洞氢储能系统的隧洞初期支 护工程中成功应用，这标志着我国岩洞储氢工程在关键结构技术领域取得突破性进展，为氢能产业基础 设施的规模化开发提供了技术范本。 作为大冶市绿电绿氢制储加用一体化氢能矿场综合建设项目的核心工程，大冶岩洞储氢项目建成后 将成为国内首个岩洞地质体储氢项目，同时承担国家级能源战略储备基地与省级规模化储氢总站的双重 职能。 由于储氢隧洞是高内压承载体，其支护结构需满足极高的强度、耐久性与抗渗性要求，二航局与武 汉岩土所组建联合攻关团队，针对性研发出兼具超高性能与快速凝结特 ...