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Rock and Soil Mechanics

Zhong-ming JIANG, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China; Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha University of Science & Technology, Changsha, Hunan 410114, ChinaFollow
Yu-ting LIU, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Xi LU, PowerChina Northwest Engineering Corporation Limited, Xi’an, Shaanxi 710065, China
Xue YANG, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Jun-hui LIAO, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Chen-zhi LIU, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Xiang-yi HUANG, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Wan-fen ZHOU, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Zhao-feng SHI, School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China
Xiang TIAN, School of Civil Engineering, Changsha University of Science & Technology, Changsha, Hunan 410114, China

Abstract

Compressed air energy storage (CAES) technology is a new type of physical energy storage and a kind of large-scale energy storage technology for power generation with broad development prospects. Large-scale CAES usually requires high-capacity underground air storage devices. Among the existing types of underground compressed air storage reservoir, the underground cavern with liner and air sealed layer has become a research hotspot in recent years because of its advantages such as easy site selection and minimal site constraints. Under the background of the urgent need for large-scale CAES technology in China, this paper comprehensively summarized and commented on the theoretical research results and technical development status of man-made cavern for air storage, discussed the advantages and disadvantages of the existing stability analysis theory of underground air storage cavern, sealing scheme of lined cavern and thermodynamic process analysis method. The key design points and critical issues that require attention in the development of the man-made underground lined caverns for air storage project are also discussed. Finally, the challenges affecting the industry development of compressed air energy storage with lined rock caverns were put forward.

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