Evaluation of rock mass strength using potential discrete fracture network (PDFN) in voronoi technique-DEM

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Fathipour Hadi; Jalali Seyyed Mohammad Esmaeil; Torabi Seyyed Rahman

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Journal Paper

Paper Information

Journal: JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING Year:2020 | Volume:10 | Issue:24 Page(s): 53-62

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Title

Evaluation of rock mass strength using potential discrete fracture network (PDFN) in voronoi technique-DEM

Author(s)

Fathipour Hadi | Jalali Seyyed Mohammad Esmaeil | Torabi Seyyed Rahman | Issue Writer Certificate

Keywords

Discrete fracture network

Stochastic Analysis

Fracture Properties

Cohesive Crack Model

Bonded Block Model

Abstract

Almost all of the proposed models of Discrete fracture networks (DFN) embedded within rock masses are discontinuities with zero tension strength. While, potential discontinuities and weak surfaces such as rock bridges, veinlet and schistose surfaces are candidate for breakage under stress and have also significant effect on rock mass strength. Simultaneously with geometrical parameters, this geomechanical heterogeneous nature of fractures are crucial for understanding rock mass behavior and characteristics. This paper focuses on the probabilistic effect of potential discontinuities property on the rock mass strength using Potential Discrete fracture networks (PDFN)-Bonded Block Models (BBM) framework. By means of this approach, potential fractures such as weak surfaces such as rock bridges, veinlet and schistose surfaces (surfaces with tension and shear strength) are considered, which have significant effect on rock mass strength. Maximum obtained rock mass strength differences for 4 fracture intensities: 1. 2, 3. 6, 6 and 8. 4 m-1 are 12. 9, 7. 4, 15. 1 and 10. 2 MPa respectively. Results indicates performance and importance of the proposed model for assessment of realistic rock mass strength.

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APA: Copy

Fathipour, Hadi, Jalali, Seyyed Mohammad Esmaeil, & Torabi, Seyyed Rahman. (2020). Evaluation of rock mass strength using potential discrete fracture network (PDFN) in voronoi technique-DEM. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, 10(24 ), 53-62. SID. https://sid.ir/paper/380736/en

Vancouver: Copy

Fathipour Hadi, Jalali Seyyed Mohammad Esmaeil, Torabi Seyyed Rahman. Evaluation of rock mass strength using potential discrete fracture network (PDFN) in voronoi technique-DEM. JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING[Internet]. 2020;10(24 ):53-62. Available from: https://sid.ir/paper/380736/en

IEEE: Copy

Hadi Fathipour, Seyyed Mohammad Esmaeil Jalali, and Seyyed Rahman Torabi, “Evaluation of rock mass strength using potential discrete fracture network (PDFN) in voronoi technique-DEM,” JOURNAL OF ANALYTICAL AND NUMERICAL METHODS IN MINING ENGINEERING, vol. 10, no. 24 , pp. 53–62, 2020, [Online]. Available: https://sid.ir/paper/380736/en

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