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)
Applying Analytical and Quantitative Criteria to Estimate Block Model Uncertainty and Mineral Reserve Classification: A Case Study: Khoshumi Uranium Deposit in Yazd

M. Taghvaeenejad; M.R. Shayestefar; P. Moarefvand

Volume 12, Issue 2 , April 2021, , Pages 425-441


  At different stages of mining, we always face a degree of uncertainty. Some of these uncertainties, such as the amount of reserve and grade of the deposit, are due to the inherent changes in the deposit and directly affect the technical and economic indicators of the deposit. On the other hand, the heavy ...  Read More

Rock Mechanics
On Analytic Solutions of Elastic Net Displacements around a Circular Tunnel

M. Hazrati Aghchai; P. Moarefvand; H. Salari Rad

Volume 11, Issue 2 , April 2020, , Pages 419-432


  Displacements around a tunnel, occurring as a result of excavation, consist of the elastic and plastic parts. In this paper, we discuss the elastic part of displacements as a result of excavation, called net displacement. In general, the previous analytical solutions presented for determining the displacements ...  Read More

Characterization of rare earth elements by coupling multivariate analysis, factor analysis, and geostatistical simulation; case-study of Gazestan deposit, central Iran

F. Soltani; P. Moarefvand; F. Alinia; P. Afzal

Volume 10, Issue 4 , October 2019, , Pages 929-945


  The traditional approaches of modeling and estimation of highly skewed deposits have led to incorrect evaluations, creating challenges and risks in resource management. The low concentration of the rare earth element (REE) deposits, on one hand, and their strategic importance, on the other, enhances ...  Read More

Geostatistical estimation to delineate oxide and sulfide zones using geophysical data; a case study of Chahar Bakhshi vein-type gold deposit, NE Iran

H. Azmi; P. Moarefvand; A. Maghsoudi

Volume 10, Issue 3 , July 2019, , Pages 679-694


  Delineation of oxide and sulfide zones in mineral deposits, especially in gold deposits, is one of the most essential steps in an exploration project that has been traditionally carried out using the drilling results. Since in most mineral exploration projects there is a limited drilling dataset, application ...  Read More

Using an experimental drilling simulator to study operational parameters in drilled-cutting transport efficiency

M. Dehvedar; P. Moarefvand; A.R. Kiyani; A. R. Mansouri

Volume 10, Issue 2 , April 2019, , Pages 417-428


  Inadequate hole cleaning can lead to many problems in horizontal and directional wells. In this work, we tried to investigate the cutting transport phenomenon by an experimental directional drilling simulator, considering the differences between the operational and experimental conditions. The inclination, ...  Read More

Determination of unstable tectonic zones in C–North deposit, Sangan, NE Iran using GPR method: importance of structural geology

A. Rezaei; H. Hassani; P. Moarefvand; A. Golmohammadi

Volume 10, Issue 1 , January 2019, , Pages 177-195


  Ground Penetrating Radar (GPR) is an effective and practical geophysical imaging tool, with a wide set of applications in geological mapping of subsurface information. This research study aims at determination of the geophysical parameter differences in the subsurface geological structures and construction ...  Read More

A boundary element analysis of crack-propagation mechanism of micro-cracks in rock-like specimens under a uniform normal tension

H. Haeri; A. R Khaloo; K. Shahriar; M. Fatehi Marji; P. Moaref vand

Volume 6, Issue 1 , January 2015, , Pages 73-93


  In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions ...  Read More