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- W4322099665 abstract "摘要: 地震是高位危岩体失稳崩塌主要诱因之一，而结构面强度与变形特性对高位危岩体稳定性起关键控制性作用.为研究地震作用下高位危岩体动力失稳机制，基于数值试验研究结构面震动劣化效应，并利用极限平衡法对高位危岩体动力稳定性进行研究.研究结果表明，结构面的峰值抗剪强度随着循环剪切次数的增加而减小，且减小幅度愈来愈小，最终趋于稳定值；随着起伏角度增大而增大，且增大幅度随着循环剪切次数的增加而减小；并在同一起伏角度下，随着循环剪切幅值的增大而减小.最后，基于回归分析法建立结构面震动劣化数学模型，并提出一种考虑结构面震动劣化的高位危岩体动力稳定性分析方法.其研究成果有助于丰富高位危岩体动力稳定性方面的基础理论研究，具有重要的理论意义和工程参考价值. 关键词: 地震 / 结构面劣化 / 高位危岩体 / 动力稳定性 / 岩土工程" @default.
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- W4322099665 date "2022-01-01" @default.
- W4322099665 modified "2023-09-26" @default.
- W4322099665 title "地震作用下结构面劣化特征及高位危岩体动力失稳机制" @default.
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- W4322099665 doi "https://doi.org/10.3799/dqkx.2022.352" @default.
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