Estimating rock mass properties using Monte Carlo simulation: Ankara andesites

Date

2010-07-01

Author

Sari, Mehmet
Karpuz, Celal
Ayday, Can

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In the paper, a previously introduced method (Sari, 2009) is applied to the problem of estimating the rock mass properties of Ankara andesites. For this purpose, appropriate closed form (parametric) distributions are described for intact rock and discontinuity parameters of the Ankara andesites at three distinct weathering grades. Then, these distributions are included as inputs in the Rock Mass Rating (RMR) classification system prepared in a spreadsheet model. A stochastic analysis is carried out to evaluate the influence of correlations between relevant distributions on the simulated RMR values. The model is also used in Monte Carlo simulations to estimate the possible ranges of the Hoek-Brown strength parameters of the rock under investigation. The proposed approach provides a straightforward and effective assessment of the variability of the rock mass properties. Hence, a wide array of mechanical characteristics can be adequately represented in any preliminary design consideration for a given rock mass.

Subject Keywords

Ankara andesites, Stochastic estimation, Monte Carlo method, Hoek-Brown failure criterion, Rock mass strength

URI

https://hdl.handle.net/11511/40834

Journal

COMPUTERS & GEOSCIENCES

DOI

https://doi.org/10.1016/j.cageo.2010.02.001

Collections

Department of Mining Engineering, Article

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Citation Formats

M. Sari, C. Karpuz, and C. Ayday, “Estimating rock mass properties using Monte Carlo simulation: Ankara andesites,” COMPUTERS & GEOSCIENCES, pp. 959–969, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40834.