A surrogate model for estimating rock stress by a hollow inclusion strain cell in a three-layer medium
文献类型：期刊论文
| 作者 | Qin, Changkun; Zhao, Wusheng2; Chen, Weizhong; Xie, Peiyao; Zhou, Shuai |
| 刊名 | INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 35期号:3页码:363-381 |
| 关键词 | Stress measurement Over-coring stress relief method Three-layer medium Surrogate model Numerical simulation |
| ISSN号 | 2095-2686 |
| DOI | 10.1016/j.ijmst.2025.02.003 |
| 英文摘要 | Accurate acquisition of the rock stress is crucial for various rock engineering applications. The hollow inclusion (HI) technique is widely used for measuring in-situ rock stress. This technique calculates the stress tensor by measuring strain using an HI strain cell. However, existing analytical solutions for stress calculation based on an HI strain cell in a double-layer medium are not applicable when an HI strain cell is used in a three-layer medium, leading to erroneous stress calculations. To address this issue, this paper presents a method for calculating stress tensors in a three-layer medium using numerical simulations, specifically by obtaining a constitutive matrix that relates strain measurements to stress tensors in a three-layer medium. Furthermore, using Latin hypercube sampling (LHS) and orthogonal experimental design strategies, 764 groups of numerical models encompassing various stress measurement scenarios have been established and calculated using FLAC3D software. Finally, a surrogate model based on artificial neural network (ANN) was developed to predict constitutive matrices, achieving a goodness of fit (R2 ) of 0.999 and a mean squared error (MSE) of 1.254. A software program has been developed from this surrogate model for ease of use in practical engineering applications. The method's accuracy was verified through numerical simulations, analytical solution and laboratory experiment, demonstrating its effectiveness in calculating stress in a three-layer medium. The surrogate model was applied to calculate mining-induced stress in the roadway roof rock of a coal mine, a typical case for stress measurement in a three-layer medium. Errors in stress calculations arising from the use of existing analytical solutions were corrected. The study also highlights the significant errors associated with using double-layer analytical solutions in a three-layer medium, which could lead to inappropriate engineering design. (c) 2025 Published by Elsevier B.V. on behalf of China University of Mining & Technology. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | National Natural Science Foundation of China[42477208] ; National Natural Science Foundation of China[52079134] ; Natural Science Foundation of Hubei Province, China[2024AFA072] ; Youth Innovation Promotion Association CAS[2022332] ; National Key R&D Program of China[2024YFF0508203] ; Open Research Fund of State Key Labo-ratory of Geomechanics and Geotechnical Engineering Safety[SKLGME-JBGS2402] ; Open Research Fund of State Key Labo-ratory of Geomechanics and Geotechnical Engineering Safety[SKLGME022022] |
| WOS研究方向 | Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001460279500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36136]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Wusheng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, Changkun,Zhao, Wusheng,Chen, Weizhong,et al. A surrogate model for estimating rock stress by a hollow inclusion strain cell in a three-layer medium[J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY,2025,35(3):363-381. |
| APA | Qin, Changkun,Zhao, Wusheng,Chen, Weizhong,Xie, Peiyao,&Zhou, Shuai.(2025).A surrogate model for estimating rock stress by a hollow inclusion strain cell in a three-layer medium.INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY,35(3),363-381. |
| MLA | Qin, Changkun,et al."A surrogate model for estimating rock stress by a hollow inclusion strain cell in a three-layer medium".INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY 35.3(2025):363-381. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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