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作者:

Li, Yi-Ming (Li, Yi-Ming.) | Zhao, Gao-Feng (Zhao, Gao-Feng.) | Jiao, Yuyong (Jiao, Yuyong.) | Yan, Chengzeng (Yan, Chengzeng.) | Wang, Xun (Wang, Xun.) | Shen, Luming (Shen, Luming.) | Yang, Lei (Yang, Lei.) | Liang, Zhengzhao (Liang, Zhengzhao.) | Li, Wanrun (Li, Wanrun.) | Zhou, Xiaoxiong (Zhou, Xiaoxiong.) | Li, Xiaofeng (Li, Xiaofeng.) | Liu, Feng (Liu, Feng.) | Zhang, Kaiyu (Zhang, Kaiyu.) | Li, Xing (Li, Xing.) | Pan, Cheng (Pan, Cheng.) | Le, Tiancheng (Le, Tiancheng.)

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EI Scopus SCIE

摘要:

Nowadays, with many available numerical methods developed in rock mechanics, researchers have always focused on the parameter calibration of the numerical model but ignored the predictive capability of these methods. A comparative study of nine commonly used numerical methods was performed for predicting rock failure through international cooperation organized by the Discontinuous Deformation Analysis (DDA) commission of the International Society for Rock Mechanics (ISRM). Two steps of numerical modelling were conducted including a calibration procedure from given experimental results and a numerical prediction for benchmark tests with these calibrated parameters for three types of rocks. Through the comparison between different numerical and experimental results, the inherent weaknesses and strengths of different numerical methods in terms of predicting rock failure were identified and analysed. The influence of human intervention in terms of parameter selection is even more significant than the choice of different numerical methods. Some potential factors (i.e., different boundary conditions, heterogeneity of rock material, strength parameters, particle packing, and failure criteria) that may occur in numerical and physical tests were further discussed. Through the comparison of different failure criteria, we found the selection of rock failure criterion might be the major factor that affected the predictive capability of numerical methods, and the nonlinear failure model (the Hoek-Brown criterion) showed the superiority in the prediction of rock fracturing subjected to complex stress conditions. This comparative work also enlightens the significance of a high-quality calibration process and the future advancement of rock failure criteria.

关键词:

Rock failure Benchmark Parameter calibration Numerical methods

作者机构:

  • [ 1 ] [Li, Yi-Ming]Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
  • [ 2 ] [Zhao, Gao-Feng]Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
  • [ 3 ] [Liu, Feng]Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
  • [ 4 ] [Zhang, Kaiyu]Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
  • [ 5 ] [Jiao, Yuyong]China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China
  • [ 6 ] [Yan, Chengzeng]China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China
  • [ 7 ] [Wang, Xun]China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China
  • [ 8 ] [Shen, Luming]Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia
  • [ 9 ] [Yang, Lei]Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia
  • [ 10 ] [Liang, Zhengzhao]Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Liaoning, Peoples R China
  • [ 11 ] [Li, Wanrun]Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Liaoning, Peoples R China
  • [ 12 ] [Zhou, Xiaoxiong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 13 ] [Li, Xiaofeng]Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
  • [ 14 ] [Li, Xing]Southeast Univ, Nanjing 211189, Jiangsu, Peoples R China
  • [ 15 ] [Pan, Cheng]Southeast Univ, Nanjing 211189, Jiangsu, Peoples R China
  • [ 16 ] [Le, Tiancheng]Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China

通讯作者信息:

  • [Zhao, Gao-Feng]Tianjin Univ, Sch Civil Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China;;

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来源 :

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES

ISSN: 1365-1609

年份: 2023

卷: 166

7 . 2 0 0

JCR@2022

ESI学科: GEOSCIENCES;

ESI高被引阀值:14

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WoS核心集被引频次:

SCOPUS被引频次: 20

ESI高被引论文在榜: 0 展开所有

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