Stability analysis and failure mechanism of the steeply inclined bedded rock masses surrounding a large underground opening

• Published in: Tunnelling and underground space technology Vol. 77; pp. 45 - 58
• Main Authors: Li, Ang, Xu, Nuwen, Dai, Feng, Gu, Gongkai, Hu, Zhonghua, Liu, Yi
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.07.2018; Elsevier BV
• Subjects: Bedded rock masses; Caverns; Computer simulation; Discrete element method; Dislocations; Failure analysis; Failure mechanism; Failure mechanisms; Hydroelectric power; Microseisms; Monitoring; MS monitoring; Planes; Rocks; Seismic stability; Simulation; Spatial distribution; Stability analysis; Strata; Underground caverns; Underground construction; Upstream; Wave power; China; Failure mechanism; Bedded rock masses; Stability analysis; Discrete element method; MS monitoring

•Comprehensively analyzed the stability of bedded rock masses.•Numerically revealed the failure process of bedded rock masses.•Revealed combined bending and sliding failure mode in the sidewall.•Bending at the toe of sidewall triggered the studied failure. The stability of high sidewalls of large-sp...