The mechanism of rock mass failure at the face of high geostress tunnels and the ultra-strength support measures are among the most problems in tunnel engineering. Meanwhile, excavating tunnels in weak surrounding rocks is also a difficult issue, and scholars both domestically and internationally have conducted extensive research on problem. However, the stability of tunnels excavated in alternating soft and hard rock masses still needs systematic and in-depth analysis. The main reason is that in highostress areas, the dynamic response of alternating soft and hard rocks after tunnel excavation is different. The full-face method of construction can reduce the disturbance to the surrounding, which is beneficial for tunnel excavation under these conditions.

Jun Gao, Hongxu Qiang, Junfeng Guo, Dongxu Wang, Jian Zhang, Linjie Shi, Chunfeng Meng, Mingdeng Yu, Junlei Zhou, Maohui Wang. Study on the Ultimate Plastic Failure of Tunnels in Layered Rock Masses under High In-Situ Stress Based on Full-Section Conditions. International Journal of Engineering Technology and Construction (2024), Vol. 5, Issue 1: 68-77. https://doi.org/10.38007/IJETC.2024.050108.

[1] Dai W, Xu S, Yang Z. Technology for Control of Large Deformation of Daping Inclined Shaft Muzhailing Tunnel in Soft Ground [J]. Tunnel Construction, 2010, 2. 

[2] Manchao H, Sousa R, Müller A, et al. Analysis of excessive deformations in tunnels for safety evaluation [J]. Tunnelling and Underground Space Technology, 201, 45: 190-202.

[3] Jiang Xinghong, Li Ke, Li Changjiang, Zhang Lidong Analysis and comparison of construction methods for high geostress soft rock sections of tunnels [J]. Modern Tunnel Technology, 2018, 55(S): 308-314. 

[4] Gong Weifeng, Wang Dongying. Finite element simulation and engineering application of high geostress soft tunnels [J]. Geotechnical and Foundation Engineering, 2019, 33(02): 181-186.

[5] Xu C H, Ren Q W. Fuzzy-synthetic evaluation on stability of surrounding rock masses of underground engineering [J]. Chinese Journal of Rock Mechanics Engineering, 2004, 11. 

[6] Xi X H. Factors affecting the stability of surrounding rocks [J]. West-China Exploration Engineering,2003, 15(5): 59-60. 

[7] Ge Chuanfeng. Analysis of factors affecting tunnel surrounding rock stabilityJ]. Highway, 2012(05): 329-334.

[8] Wang Guanyong. Analysis of factors affecting surrounding rock stability [J]. World of Transport, 2012(07): 234-235.

[9] Zhang Guom. Analysis of factors affecting the stability of subway tunnel surrounding rock [J]. Science and Technology Horizon, 2016(10): 199201.

[10] Wang Siqi. Factors affecting tunnel surrounding rock stability [J]. Today's Science and Technology, 2014(6):106.

[11] Li Yuanyou, Shen Lu. Factors affecting the stability of tunnel structures and basic treatment methods [J]. Northern Transport, 215(6): 106-108.

[12] Fu G B, Jing H W, Xu J H. Stability analysis of surrounding rock a deep roadway and its supporting practice [C]//8th ISRM Congress. International Society for Rock Mechanics and Rock Engineering, 1995.

[13] Zhu W S, Li X J, Zhang Q B, et al. A study on sidewall displacement prediction and stability evaluations large underground power station caverns[J]. International Journal of Rock Mechanics and Mining Sciences, 2010, 47(7): 105-1062. 

[14] Abdollahipour A, Rahmannejad R. Sensitivity analysis of influencing parameters in cavern stability[J]. International Journal of Mining Science and Technology, 2012, 22(5): 707-710. 

[15] Qin K Yuan W Z, Xu G C, et al. Study on the stability characteristics of surrounding rock in underground tunnels with different spans[J/OL]. Utilization of Ash, 2021, 35(2): 48-51. 

[16] Wang J F. A fuzzy comprehensive evaluation for tunnel surrounding rock stability based on geological advance forecasting[J]. Urban Roads and Flood Control, 2018(8). 

[17] National Metall Industry Bureau. Technical Specifications for Anchor Rod and Shotcrete Support [S]. Ministry of Construction of the People's Republic of China. 2001.1-12.