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Numerical Simulation Model of Mining-Induced Fault Reactivation.

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Title: Numerical Simulation Model of Mining-Induced Fault Reactivation.
Authors: Wang, Tao1,2,3 txw323@psu.edu
Source: Wireless Personal Communications. Sep2018, Vol. 102 Issue 2, p1327-1336. 10p.
Subjects: Computer simulation, Engineering software, Engineering -- Computer network resources, Shear (Mechanics), Shear strength of soils, Rock deformation, Geologic faults
Abstract: Computer simulation technology is more and more used in engineering. The simulation quality is directly related to the model used in the numerical calculation. The more model matches, the more realistic simulation results. Based on the double-sided shear test, a model of fault rock was proposed to describe the nonlinear characteristics of the surrounding rock during fault slip, the displacement evolution and stress drop of the surrounding rock during different loading stages were obtained. The model was applied in computer numerical simulation to discuss the law of fault rock activity. Simulation results show that, the destabilizing sliding process had two stages, deformation accumulation and abrupt dislocation. The deformation accumulation stage can be divided into three subprocesses: decelerating sliding, steady sliding, and accelerating sliding. When friction is added to a modified Kelvin model, which introduced a nonlinear hardening function and considered nonlinear damage in the accelerating sliding phase, the model produces a stress drop when the friction threshold is reached, so as to describe the characteristics of displacement of the fault rock, which can provide a theoretical basis for the study of fault slip instability mechanisms and deformation characteristics. [ABSTRACT FROM AUTHOR]
Copyright of Wireless Personal Communications is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Numerical Simulation Model of Mining-Induced Fault Reactivation.
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  Data: Computer simulation technology is more and more used in engineering. The simulation quality is directly related to the model used in the numerical calculation. The more model matches, the more realistic simulation results. Based on the double-sided shear test, a model of fault rock was proposed to describe the nonlinear characteristics of the surrounding rock during fault slip, the displacement evolution and stress drop of the surrounding rock during different loading stages were obtained. The model was applied in computer numerical simulation to discuss the law of fault rock activity. Simulation results show that, the destabilizing sliding process had two stages, deformation accumulation and abrupt dislocation. The deformation accumulation stage can be divided into three subprocesses: decelerating sliding, steady sliding, and accelerating sliding. When friction is added to a modified Kelvin model, which introduced a nonlinear hardening function and considered nonlinear damage in the accelerating sliding phase, the model produces a stress drop when the friction threshold is reached, so as to describe the characteristics of displacement of the fault rock, which can provide a theoretical basis for the study of fault slip instability mechanisms and deformation characteristics. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Wireless Personal Communications is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11277-017-5197-9
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Engineering software
        Type: general
      – SubjectFull: Engineering -- Computer network resources
        Type: general
      – SubjectFull: Shear (Mechanics)
        Type: general
      – SubjectFull: Shear strength of soils
        Type: general
      – SubjectFull: Rock deformation
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      – SubjectFull: Geologic faults
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              Text: Sep2018
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