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)
Evaluation of Effects of Parameters of Blast Damage Factor, Sub-drilling, Decoupling, and Inter-hole Delay Time on Peak Particle Velocity using Numerical Modeling

Bijan Afrasiabian; Kaveh Ahangari; Ali Noorzad

Volume 14, Issue 2 , April 2023, , Pages 545-563

https://doi.org/10.22044/jme.2023.12265.2225

Abstract
  High-level vibrations caused by blasting operations in open-pit mining can exert adverse effects such as destruction of surrounding surface structures. Therefore, it is essential to identify the factors effective in mitigating the damaging effects of ground vibration in open-pit mines, and monitor them. ...  Read More

An Investigation into Bench Health Monitoring under Blast Loading in Hoek-Brown Failure Criterion using Finite Difference Method

Seyed Ahmad Mousavi; Kaveh Ahangari; Kamran Goshtasbi

Volume 13, Issue 3 , July 2022, , Pages 875-889

https://doi.org/10.22044/jme.2022.12094.2207

Abstract
  Blast and stress release create cracks, fractures, and excavation damage zone in the remaining rock mass. Bench health monitoring (BHM) is crucial regarding bench health and safety in blast dynamic loading. Several empirical criteria have been proposed for a quick estimation of different parameters of ...  Read More

Analysis of Grinding and Chipping Processes beneath Disc Cutters of Hard Rock Tunnel Boring Machines (Case study: Uma-Oya water Conveyance Tunnel, SriLanka)

Seyed M. Pourhashemi; K. Ahangari; J. Hassanpour; Seyed M. Eftekhari

Volume 12, Issue 1 , January 2021, , Pages 281-297

https://doi.org/10.22044/jme.2021.10425.1993

Abstract
  Mechanized tunneling in rocks is based on fracture propagation and rock fragmentation under disc cutters. Rock chipping is an efficient kind of fragmentation process, while the grinding process may occur under special conditions. The cutter-head penetration is an appropriate parameter involved in order ...  Read More

Effect of Segmental Joint on Internal Forces in Tunnel Lining under Seismic Loading by Numerical Method

Gh.H. Ranjbar; K. Shahriar; K. Ahangari

Volume 11, Issue 3 , July 2020, , Pages 737-751

https://doi.org/10.22044/jme.2020.8979.1785

Abstract
  Although segmental tunnel linings are often used for seismic areas, the influence of segment joints on the segmental lining behavior under seismic loading has not been thoroughly considered in the literature. This paper presents the results of a numerical study investigating the effects of the rotational, ...  Read More

Copper Price Prediction using Wave Count with Contribution of Elliott Waves

R. Satari; A. Akbari Dehkharghani; K. Ahangari

Volume 11, Issue 3 , July 2020, , Pages 825-835

https://doi.org/10.22044/jme.2020.9240.1822

Abstract
  Within the last few decades, copper has been identified as one of the most applicable metals by many researchers. These researchers have also been enthusiastic to predict the price of this valuable metal. These days, the available technical analysis methods have been highly applied in the financial markets. ...  Read More

Rock Mechanics
Effect of segmental joint stiffness on tunnel lining internal forces under static conditions

Gh. H Ranjbar; K. Shahriar; K. Ahangari

Volume 10, Issue 4 , October 2019, , Pages 1031-1043

https://doi.org/10.22044/jme.2019.8581.1738

Abstract
  According to the wide application of segmental lining in mechanized tunneling, recognizing the behavior of segmental lining joints is important in tunnels designing. In the structural analysis of the tunnel segmental lining, segmental joints can be considered as elastic joints, and their stiffness characteristics ...  Read More

Rock Mechanics
A field investigation of application of digital terrestrial photogrammetry to characterize geometric properties of discontinuities in open-pit slopes

M. M. Samieinejad; N. Hosseini; K. Ahangari

Volume 8, Issue 3 , July 2017, , Pages 455-465

https://doi.org/10.22044/jme.2017.930

Abstract
  In order to analyze the slope stability in open-pit mines, the structural parameters of rock mass such as persistence and spatial orientation of discontinuities are characterized through field surveys, which involve spending high costs and times as well as posing high risks of rock toppling and rock ...  Read More