Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Rock Mechanics
Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients

M. Lotfi; B. Tokhmechi

Volume 10, Issue 4 , October 2019, , Pages 1121-1133


  Nowadays, Barton’s Joint Roughness Coefficients (JRC) are widely used as the index for roughness and as a challenging fracture property. When JRC ranking is the goal, deriving JRC from different fractal/wavelet procedures can be conflicting. Complexity increases when various rankings outcome from ...  Read More

Fuzzy tonnage-average grade model based on extension principle

S. Soltani-Mohammadi; A. Soltani; B. Sohrabian

Volume 10, Issue 3 , July 2019, , Pages 659-666


  Due to the nature of the geological and mining activities, different input parameters in the grade estimation and mineral resource evaluation are always tainted with uncertainties. It is possible to investigate the uncertainties related to the measurements and parameters of the variogram model using ...  Read More

Optimal production strategy of bimetallic deposits under technical and economic uncertainties using stochastic chance-constrained programming

E. Bakhtavar; A. Jafarpour; S. Yousefi

Volume 8, Issue 3 , July 2017, , Pages 475-485


  In order to catch up with reality, all the macro-decisions related to long-term mining production planning must be made simultaneously and under uncertain conditions of determinant parameters. By taking advantage of the chance-constrained programming, this paper presents a stochastic model to create ...  Read More

Robust production scheduling in open-pit mining under uncertainty: a box counterpart approach

A. Alipour; A. A. Khodaiari; A. Jafari; R. Tavakkoli-Moghaddam

Volume 8, Issue 2 , April 2017, , Pages 255-267


  Open-Pit Production Scheduling (OPPS) problem focuses on determining a block sequencing and scheduling to maximize Net Present Value (NPV) of the venture under constraints. The scheduling model is critically sensitive to the economic value volatility of block, block weight, and operational capacity. ...  Read More