Abstract：The stability of the compressed air energy storage (CAES) cavern is influenced by ground stresses during the construction phase and by cyclic high internal pressure (≥10 MPa) during the operational phase, resulting in different mechanical responses of the surrounding rock during the unloading and loading phases. This study investigates the stress paths of the CAES cavern from the perspectives of stress evolution and damage modes throughout both construction and operational phases. The findings indicate that during the excavation phase, active support technology significantly reduces deformation by adjusting the principal stress field of the surrounding rock, particularly in low-strength rock formations. Additionally, the load transfer effect decreases the burden on initial supports, such as steel arches. In the operational phase, the high internal pressure causes the sequence of principal rock stresses to shift, with radial stress increasing to the maximum principal stress and circumferential stress transitioning to the minimum principal stress. When exposed to hydrostatic pressure, characterized by low local stress and high rock strength, the surrounding rock at the tunnel wall may experience tensile failure during the high-pressure gas storage stage; otherwise, shear failure will occur at the tunnel wall. When the lateral pressure coefficient ( ) is less than 1, shear failure occurs in the surrounding rock at the side walls. In cases where the lateral pressure coefficient is particularly low, tensile failure may still happen at the arch crown. Conversely, when exceeds 1, shear failure is observed in the surrounding rock at the arch. If the lateral pressure coefficient is notably high, tensile failure may still occur at the side walls. As pressure increases, the area of tensile fractures may subsequently undergo shear failure. Further analysis reveals that conventional grouting and radial bolt systems significantly enhance stability only during the excavation phase. During operation, radial bolts not only lose their reinforcing capabilities but also exacerbate stress concentration in the surrounding rock under compression. In contrast, enhanced circumferential restraint effectively improves the stress state of the surrounding rock. For surrounding rock of good quality and high strength, grouting has limited efficacy in filling fractures. Conversely, grouting measures have been shown to increase the shear strength of formations characterized by low strength. Based on these insights, this study proposes an innovative solution for the stability control of CAES caverns subjected to complex stress paths by forming an anchor network system using crossed diagonal anchors and optimizing the inclination angle of the anchors to achieve a full-cycle tensile state.
张世殊1，徐 晨2，3，夏才初2，3. 压气储能硐室围岩应力路径及稳定性调控[J]. 岩石力学与工程学报, 2025, 44(11): 2825-2842.
ZHANG Shishu1, XU Chen2, 3, XIA Caichu2, 3. Stress path and stability control of surrounding rock in caverns for compressed air energy storage. , 2025, 44(11): 2825-2842.
[1] 杨春和，王同涛. 深地储能研究进展[J]. 岩石力学与工程学报，2022，41(9)：1 729–1 759.(YANG Chunhe，WANG Tongtao. Advance in deep underground energy storage[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(9)：1 729–1 759.(in Chinese))
[2] 蒋中明，刘宇婷，陆 希，等. 压气储能内衬硐室储气关键问题与设计要点评述[J]. 岩土力学，2024，45(12)：3 491–3 509.(JANG Zhongming，LIU Yuting，LU Xi，et al. Review on key scientific and design issues of lined rock caverns for compressed air energy storage[J]. Rock and Soil Mechanics，2024，45(12)：3 491–3 509.(in Chinese))
[3] 夏才初，周舒威，周 瑜，等. 压缩空气储能的地下岩石内衬洞室关键技术[M]. 上海：同济大学出版社，2021：11.(XIA Caichu，ZHOU Shuwei，ZHOU Yu，et al. Key technology of underground rock lined caverns for compressed air energy storage[M]. Shanghai：Tongji University Press，2021：11.(in Chinese))
[4] 孙冠华，王 娇，于显杨，等. 压缩空气储能电站地下内衬硐库基本原理与分析方法研究进展[J]. 岩土力学，2025，46(1)：1–25. (SUN Guanhua，WANG Jiao，YU Xianyang，et al. Research progress on basic principles and analysis methods of lined rock caverns for compressed air energy storage station[J]. Rock and Soil Mechanics，2025，46(1)：1–25.(in Chinese))
[5] 刘钦节，陈 强，付 强，等. 过断层压气储能巷道围岩变形特征与支护优化[J]. 安徽理工大学学报：自然科学版，2024，44(2)：67–74.(LIU Qinjie，CHEN Qiang，FU Qiang，et al. Deformation characteristics and support optimization of surrounding rock in fault-crossing compressed air energy storage roadway[J]. Journal of Anhui University of Science and Technology：Natural Science，2024，44(2)：67–74.(in Chinese))
[6] HE M C，SUI Q R，LI M N，et al. Compensation excavation method control for large deformation disaster of mountain soft rock tunnel[J]. International Journal of Mining Science and Technology，2022，32(5)：951–963.
[7] 陶志刚，张 博，杨 康，等. 昌宁隧道软岩大变形及NPR锚索开挖补偿支护技术[J]. 中国矿业大学学报，2023，52(4)：660–671. (TAO Zhigang，ZHANG Bo，YANG Kang，et al. Large deformation of soft rock and NPR anchor cable excavation compensation support technology in Changning tunnel[J]. Journal of China University of Mining and Technology，2023，52(4)：660–671.(in Chinese))
[8] 罗基伟，张顶立，房 倩，等. 超大跨度隧道预应力锚杆–锚索协同支护机制[J]. 中国铁道科学，2020，41(5)：71–82.(LUO Jiwei，ZHANG Dingli，FANG Qian，et al. Combined support mechanism of pretensioned rock bolt and anchor cable for super-large-span tunnel[J]. China Railway Science，2020，41(5)：71–82.(in Chinese))
[9] HU J，HE M C，LI H R，et al. Rockburst hazard control using the excavation compensation method(ECM)：A case study in the Qinling water conveyance tunnel[J]. Engineering，2024，34(3)：154–163.
[10] 郭志飚，李伟涛，何满潮，等. 基于补偿理论的深部软岩动压巷道破坏机制及控制对策[J]. 中国矿业大学学报，2023，52(5)：931–942.(GUO Zhibiao，LI Weitao，HE Manchao，et al. Failure mechanism and control strategies in dynamic pressure roadways of deep soft rock based on compensation theory[J]. Journal of China University of Mining and Technology，2023，52(5)：931–942.(in Chinese))
[11] 王守慧，梅玉春，刘泉维，等. 浅埋大跨岩质隧道主动支护作用机制研究与应用[J]. 中国铁道科学，2024，45(1)：131–141.(WANG Shouhui，MEI Yuchun，LIU Quanwei，et al. Research and application of active support mechanism for shallow-buried large-span rock tunnel[J]. China Railway Science，2024，45(1)：131–141.(in Chinese))
[12] 李伟涛，郭志飚，何满潮，等. 深部高应力软岩巷道失稳机制及补偿支护技术研究[J]. 煤炭科学技术，2024，DOI：10.12438/cst. 2024–0767.(LI Weitao，GUO Zhibiao，HE Manchao，et al. Study on failure mechanisms and compensation support technology of deep high-stress soft rock roadways[J]. Coal Science and Technology，2024，DOI：10.12438/cst. 2024–0767.(in Chinese))
[13] ZHAO J，WANG G. Unloading and reverse yielding of a finite cavity in a bounded cohesive-frictional medium[J]. Computers and Geotechnics，2010，37：239–245.
[14] ELJIRARI S，WONG H，DELERUYELLE F，et al. Analytical modelling of a tunnel accounting for elastoplastic unloading and reloading with reverse yielding and plastic flow[J]. Computers and Geotechnics，2020，121：103441.
[15] 夏才初，徐 晨，杜时贵. 考虑应力路径的深埋隧道黏弹–塑性围岩与支护相互作用[J]. 岩石力学与工程学报，2021，40(9)：1 769– 1 802.(XIA Caichu，XU Chen，DU Shigui. Interaction between viscoelastic-plastic surrounding rock and support structure in deep tunnels considering stress path[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(9)：1 769–1 802.(in Chinese))
[16] XU C，XIA C C，DU S G. Simplified solution for viscoelastic-plastic interaction between tunnel support and surrounding rock based on MC and GZZ strength criteria[J]. Computers and Geotechnics，2021，139：104393.
[17] XU C，WANG S，XIA C C，et al. Viscoelastic plastic interaction of tunnel support and strain-softening rock mass considering longitudinal effect[J]. Rock Mechanics Bulletin，2024，3(4)：100152.
[18] XU C，WANG S，XIA C C. Analytical prediction for time-dependent interaction of a circular tunnel excavated in strain-softening rock mass[J]. Rock Mechanics Bulletin，2024，3(3)：100127.
[19] XU C，ZHANG G C，XIA C C，et al. Mechanical behavior of a new segmented lining for underground rock caverns with high internal pressure[J]. Computers and Geotechnics，2024，167：106100.
[20] 王者超，贾文杰，冯夏庭，等. 隧洞式内衬储气库极限储存压力解析解[J]. 力学学报，2023，55(3)：710–718.(WANG Zhechao，JIA Wenjie，FENG Xiating，et al. Analytical solution of limit storage pressures for tunnel type lined gas storage caverns[J]. Chinese Journal of Theoretical and Applied Mechanics，2023，55(3)：710–718.(in Chinese))
[21] XU Y，XIA C，ZHOU S，et al. An analytical solution for elastoplastic responses of a lined rock cavern for compressed air energy storage considering excavation and high internal pressure[J]. Computers and Geotechnics，2024，170：106318.
[22] 孙冠华，易 琪，于显杨，等. 压缩空气储能电站大罐式地下内衬硐库上覆岩体稳定性分析[J]. 中国科学：技术科学，2024，54(12)：2 377–2 391.(SUN Guanhua，YI Qi，YU Xianyang，et al. Analysis of the stability of the overlying rock mass for silo type lined rock caverns in compressed air energy storage[J]. Scientia Sinica Technologica，2024，54(12)：2 377–2 391.(in Chinese))
[23] PANET M. Time-dependent deformations in underground works[C]// Proceedings of the 4th International Congress on Rock Mechanics. Montreux：[s. n.]，1979：279–289.
[24] 中华人民共和国行业标准编写组. JTG 3370.1—2018公路隧道设计规范[S]. 北京：人民交通出版社股份有限公司，2019.(The Professional Standards Compilation Group of People′s Republic of China. JTG 3370.1—2018 Specifications for design of highway tunnels[S]. Beijing：People?s Communications Press Co.，Ltd.，2019.(in Chinese))
[25] XU C，XIA C，ZHANG G，et al. Residual rock deformation of lined caverns for underground energy storage after air deflation considering stress path[J]. Journal of Rock Mechanics and Geotechnical Engineering，2025，17：4 160–4 178.
2025, Vol. 44 
