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地下内衬硐库是压缩空气储能系统的重要组成部分。由于施工期通道和运行期密封性的要求，任何地下内衬硐库都需要1个或多个密封堵头。密封堵头受力状态的复杂性使其选型和设计面临挑战。针对堵头和围岩之间的界面工程力学特性，采用理论分析和数值模拟方法，对4种典型结构形式的密封堵头进行了分析，并基于筛选出的抗力特性最佳的堵头，进一步开展了优化设计研究。结果表明：楔形堵头的抗力特性最佳，最有利于维持堵头与围岩界面之间的变形协调；楔形堵头前端倾角宜选择25°～40°，后端倾角可按围岩潜在破裂角公式计算；提出了基于极限平衡分析方法的堵头长度计算公式，该公式表明，楔形堵头所需长度由堵头直径、所受气压荷载和前后端倾角大小共同计算而得。研究成果可为地下内衬硐库密封堵头设计提供理论依据和实践指导。
Abstract：The underground lined cavern is a crucial component of the compressed air energy storage. Due to the requirements for passage during construction and sealing during operation, every underground lined rock cavern requires one or more sealing plugs. The complex stress characteristics of these sealing plugs pose challenges for selection and design. This study conducts an in-depth analysis of four typical sealing plugs and utilizes theoretical analysis and numerical simulation to investigate the interface mechanical properties between the plugs and the surrounding rock. The results indicate that the wedge-shaped plug exhibits the best resistance characteristics and facilitates coordinated deformation between the plug and the surrounding rock interface. Based on these findings, the study conducts an optimization design study. The results suggest that the front inclination angle of the wedge-shaped plug should fall within the range of 25°—40°, while the potential rupture angle formula for the surrounding rock determines the rear inclination angle. Furthermore, the study proposes a length calculation formula for the plug based on the limit equilibrium analysis method, indicating that the required length of the wedge-shaped plug is calculated based on the plug's diameter,the applied pneumatic load,and the inclination angles of its front and rear ends. This research provides theoretical support and practical guidance for the design of sealing plugs in underground lining caverns.
[1]孙冠华，朱开源，纪文栋，等.压缩空气储能电站地下硐库的基本概念、设计理念与方法[J].隧道与地下工程灾害防治，2024, 6(1):14-23.SUN G H, ZHU K Y, JI W D, et al. Basic concepts, design principles, and methods of compressed air energy storage underground caverns[J]. Hazard Control in Tunnelling and Underground Engineering, 2024, 6(1):14-23.
[2] GENG X, SUN G, WU K, et al. Thermodynamic analysis of lined rock caverns for initial inflation and cyclic operational conditions in compressed air energy storage[J]. Journal of Energy Storage, 2024, 99:113253.
[3]蒋中明，廖峻慧，肖喆臻，等.压缩空气储能地下储气库热力学改进模型研究[J].长沙理工大学学报（自然科学版），2024,21(2):32-41.JIANG Z M, LIAO J H, XIAO Z Z, et al. Study on improved model for the thermodynamics of compressed air energy storage underground cavern[J]. Journal of Changsha University of Science&Technology(Natural Science), 2024, 21(2):32-41.
[4]李仲奎，马芳平，刘辉.压气蓄能电站的地下工程问题及应用前景[J].岩石力学与工程学报，2003, 22（增刊1）:2121-2126.LI Z K, MA F P, LIU H. Underground engineering problems in compressed air energy storage and its developing future[J].Chinese Journal of Rock Mechanics and Engineering, 2003, 22(S1):2121-2126.
[5]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，2024, 45(1):1-25.SUN G H, WANG J, YU X Y, 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, 2024, 45(1):1-25.
[6]张国华，王薪锦，柯洪，等.压气储能地下内衬储气库运行压力区间确定方法[J].岩石力学与工程学报，2024, 43(12):2874-2891.ZHANG G H, WANG X J, KE H, et al. A method to determine the operating pressure range of lined underground gas storage facility in a compressed air energy storage system[J].Chinese Journal of Rock Mechanics and Engineering, 2024, 43(12):2874-2891.
[7]徐新桥，杨春和，李银平.国外压气蓄能发电技术及其在湖北应用的可行性研究[J].岩石力学与工程学报，2006, 25（增刊2）:3987-3992.XU X Q, YANG C H, LI Y P. Review on compressed air energy storage abroad and its feasibility application to hubei province[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(S2):3987-3992.
[8]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):2377-2391.SUN G H, YI Q, YU X Y, 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):2377-2391.
[9]金维平，彭益成.硬岩地区压缩空气储能工程地下储气洞室选址方法研究[J].电力与能源，2017, 38(1):63-67.JIN W P, PENG Y C. Underground gas storage cavern location method for compressed air energy storage engineering in hard rock area[J]. Power&Energy, 2017, 38(1):63-67.
[10]KIM H M, RUTQVIST J, RYU D W, et al. Exploring the concept of compressed air energy storage(CAES)in lined rock caverns at shallow depth:A modeling study of air tightness and energy balance[J]. Applied Energy, 2012, 92:653-667.
[11]董家伟，李毅.含水层压缩空气储能选址评价方法研究[J].安全与环境工程，2021, 28(3):228-239.DONG J W, LI Y. Study of the site evaluation of compressed air energy storage in aquifers[J]. Safety and Environmental Engineering, 2021, 28(3):228-239.
[12]张国华，相月，王薪锦，等.压气储能地下内衬储气库结构荷载分担解析解及影响因素分析[J].岩石力学与工程学报，2024, 43（增刊2）:3633-3650.ZHANG G H, XIANG Y, WANG X J, et al. Analytical solution for load sharing in the structure of an underground lined rock cavern for compressed air energy storage and analysis of influencing factors[J]. Chinese Journal of Rock Mechanics and Engineering, 2024, 43(S2):3633-3650.
[13]夏才初，徐英俊，王辰霖，等.基于非稳态渗流过程的压气储能洞室空气渗漏率计算[J].岩土力学，2021, 42(7):1765-1773, 1793.XIA C C, XU Y J, WANG C L, et al. Calculation of air leakage rate in lined cavern for compressed air energy storage based on unsteady seepage process[J]. Rock and Soil Mechanics, 2021, 42(7):1765-1773, 1793.
[14]蒋中明，李鹏，赵海斌，等.压气储能浅埋地下储气库性能试验研究[J].岩土力学，2020, 41(1):235-241, 252.JIANG Z M, LI P, ZHAO H B, et al. Experimental study on performance of shallow rock cavern for compressed air energy storage[J]. Rock and Soil Mechanics, 2020, 41(1):235-241, 252.
[15]GEISSBüHLER L, BECATTINI V, ZANGANEH G, et al.Pilot-scale demonstration of advanced adiabatic compressed air energy storage, Part 1:Plant description and tests with sensible thermal-energy storage[J]. Journal of Energy Storage, 2018,17:129-139.
[16]BECATTINI V, GEISSBüHLER L, ZANGANEH G, et al.Pilot-scale demonstration of advanced adiabatic compressed air energy storage, Part 2:Tests with combined sensible/latent thermal-energy storage[J]. Journal of Energy Storage, 2018,17:140-152.
[17]甘文喜.对导流洞设计中若干问题的探讨[J].水电站设计，2000, 16(4):34-37, 47.GAN W X. Discussion on some problems in the design of diversion tunnel[J]. Design of Hydroelectric Power Station,2000, 16(4):34-37, 47.
[18]侯君.二滩工程导流隧洞堵头设计准则探讨[J].水力发电，1998(7):32-35.HOU J. Discussion on the design guideline of plugging of Ertan project diversion tunnel[J]. Hydroelectricity, 1998(7):32-35.
[19]翁永红，张练，徐唐锦，等.高水头下大型导流洞新型堵头-围岩相互作用规律与安全评价[J].岩土力学，2020, 41(1):242-252.WENG Y H, ZHANG L, XU T J, et al. Safety evaluation on interaction of new plug structure and surrounding rock mass under high water head[J]. Rock and Soil Mechanics, 2020, 41(1):242-252.
[20]AULD F A. Design of underground plugs[J]. International Journal of Mining Engineering, 1983, 1(3):189-228.
[21]ILYUSHIN V F. Design of concrete plugs in temporary underground hydraulic structures[J]. Hydrotechnical Construction, 1988, 22(6):327-334.
[22]H?KMARK H. Numerical study of the performance of tunnel plugs[J]. Engineering Geology, 1998, 49(3/4):327-335.
[23]SONG W, RYU D, LEE Y. Stability Analysis of Concrete Plugs in a Pilot Cavern for Compressed Air Energy Storage[M]//Harmonising Rock Engineering and the Environment.Boca Raton:CRC Press, 2011:1813-1816.
[24]USMANI A, KANNAN G, NANDA A, et al. Analysis and design approach for concrete plugs for underground storage caverns[J]. Practice Periodical on Structural Design and Construction, 2016, 21(1):04015004.
[25]PERAZZELLI P, ANAGNOSTOU G. Design issues for compressed air energy storage in sealed underground cavities[J]. Journal of Rock Mechanics and Geotechnical Engineering,2016, 8(3):314-328.
[26]黄毓成.压气储能地下储气库围岩应力变形特性研究[D].长沙：长沙理工大学，2019.HUANG Y C. Study on the Stress and Deformation Characteristics of Surrounding Rock of Underground Cavern Compressed Air Energy Storage[D]. Changsha:Changsha University of Science and Technology, 2019.
[27]陈晓虎.废弃煤矿压缩空气储能硐室安全性数值模拟研究[D].徐州：中国矿业大学，2022.CHEN X H. Numerical Simulation Study on Safety of Compressed Air Energy Storage Chamber in Abandoned Coal Mine[D]. Xuzhou:China University of Mining and Technology, 2022.
[28]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):3491-3509.JIANG Z M, LIU Y T, LU X, 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):3491-3509.
[29]中华人民共和国交通运输部.公路隧道设计规范第一册土建工程：JTG 3370. 1—2018[S].北京：人民交通出版社，2018.Ministry of Transport of the People’s Republic of China.Specifications for Design of Highway Tunnels Section 1 Civil Engineering:JTG 3370. 1—2018[S]. Beijing:China Communications Press, 2018.
[30]中华人民共和国住房和城乡建设部.混凝土结构设计规范：GB 50010—2010[S].北京：中国建筑工业出版社，2010.Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Code for Design of Concrete Structures:GB 50010—2010[S]. Beijing:China Architecture&Building Press, 2010.
基本信息:
DOI：10.13578/j.cnki.issn.1671-1556.20241072
中图分类号:TK02;TU93
引用信息:
[1]屈杰,刘形林,孙冠华等.压缩空气储能地下内衬硐库密封堵头力学模型与优化设计[J].安全与环境工程,2025,32(04):24-33.DOI:10.13578/j.cnki.issn.1671-1556.20241072.
基金信息:
国家自然科学基金项目(12302507); 湖北省自然科学基金重点项目(2022CFD031、2024AFD361)