Water saturation effects on mechanical performances and failure characteristics of rock-concrete disc with different interface dip angles

Zhou, Zilong; Lu, Jianyou; Cai, Xun; Rui, Yichao; Tan, Lihai

doi:10.1016/j.conbuildmat.2022.126684

Cited by 35 publications

(1 citation statement)

References 43 publications

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“…Rock is the main supporting material in underground engineering [1][2][3], and its damage degree evolves with time under the action of external factors such as force [3][4][5][6] temperature [7][8][9], and water [10][11][12]. Real-time detection and characterization of rock damage location and damage level is the key to preventing underground disasters [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

An Improved Rock Damage Characterization Method Based on the Shortest Travel Time Optimization with Active Acoustic Testing

Zhou,

Liu,

Zhao

et al. 2024

Mathematics

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Real-time evaluation of the damage location and level of rock mass is essential for preventing underground engineering disasters. However, the heterogeneity of rock mass, which results from the presence of layered rock media, faults, and pores, makes it difficult to characterize the damage evolution accurately in real time. To address this issue, an improved method for rock damage characterization is proposed. This method optimizes the solution of the global shortest acoustic wave propagation path in the medium and verifies it with layered and defective media models. Based on this, the relationship between the inversion results of the wave velocity field and the distribution of rock damage is established, thereby achieving quantitative characterization of rock damage distribution and degree. Thus, the improved method is more suitable for heterogeneous rock media. Finally, the proposed method was used to characterize the damage distribution evolution process of rock media during uniaxial compression experiments. The obtained results were compared and analyzed with digital speckle patterns, and the influencing factors during the use of the proposed method are discussed.

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