Bayesian Estimation of Rock Mechanical Parameter and Stability Analysis for a Large Underground Cavern
文献类型：期刊论文
| 作者 | Jiang, Quan; Liu, Jian; Zheng, Hong; Wang, Bin; Guo, Zhi-Zhong; Chen, Tao; Xiong, Xian-Tao |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 22期号:8 |
| ISSN号 | 1532-3641 |
| 关键词 | Underground engineering Bayesian method Parameters distribution Markov Chain Monte Carlo simulation Deformation probability distribution |
| 英文摘要 | The uncertainty rock mechanical parameters (i.e., deformation and strength parameters) is an important factor in the safety estimation and support design of underground engineering. Ignoring this uncertainty could allow potential risks to the structure. To address this challenge, this paper develops and verifies a Bayesian approach for a rock's mechanical parameters estimation by integrating limited site data and prior knowledge, and the integrated knowledge is then transformed into a large number of equivalent samples of the rock's parameters. The experimental data of marble from triaxial compression tests are first used to verify this method, and the results show that this method can effectively estimate the distribution of the marble's deformation and strength parameters under the condition of small samples. Further, the probability distribution of rock mass parameters is obtained with the help of Hoek-Brown criterion. Then, the random field of the rock mass with a large cavern is constructed according to the obtained parameter distribution, the influence of different autocorrelation distances is discussed, and the excavation-induced deformation's statistical analysis is carried out. Finally, the failure of the surrounding rock is characterized probabilistically, which can be a reference to the reliability design of rock support in underground engineering. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| WOS记录号 | WOS:000811072500006 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34818]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Jiang, Quan,Liu, Jian,Zheng, Hong,et al. Bayesian Estimation of Rock Mechanical Parameter and Stability Analysis for a Large Underground Cavern[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2022,22(8). |
| APA | Jiang, Quan.,Liu, Jian.,Zheng, Hong.,Wang, Bin.,Guo, Zhi-Zhong.,...&Xiong, Xian-Tao.(2022).Bayesian Estimation of Rock Mechanical Parameter and Stability Analysis for a Large Underground Cavern.INTERNATIONAL JOURNAL OF GEOMECHANICS,22(8). |
| MLA | Jiang, Quan,et al."Bayesian Estimation of Rock Mechanical Parameter and Stability Analysis for a Large Underground Cavern".INTERNATIONAL JOURNAL OF GEOMECHANICS 22.8(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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