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)
Exploitation
A New Method for Stability Analysis of Chain Pillar in Longwall Mining by using Coulmann Graphical Method

Mohammad Sina Abdollahi; Mehdi Najafi; Alireza Yarahamdi Bafghi; Ramin Rafiee

Volume 15, Issue 4 , October 2024, , Pages 1461-1476

https://doi.org/10.22044/jme.2024.13754.2548

Abstract
  The stability analysis of chain pillars is crucial, especially as coal extraction rates increase, making it essential to reduce the size of these pillars. Therefore, a new method for estimating the load on chain pillars holds significant importance. This research introduces a novel solution for estimating ...  Read More

Prediction of Roof Failure in Pre-driven Entries and Selecting a Suitable Type of Recovery Room Method in Longwall Mining

Sajjad Aghababaei; Hossein Jalalifar; Ali Hosseini; Farhad Chinaei; Mehdi Najafi

Volume 15, Issue 1 , January 2024, , Pages 223-237

https://doi.org/10.22044/jme.2023.12787.2321

Abstract
  In this work, two rock engineering system (RES)-based models are presented, the first model to predict the roof failure when a longwall face advances toward a pre-driven recovery room (PDRR) and the second model to select the type of recovery room method for longwall mining. For the first model, an international ...  Read More

Exploitation
Investigating Effect of Induced Stresses due to Coal Panel Extraction on Next Panel Strata behavior during Mechanized Longwall Mining: a Case Study

Emad Ansari; Ramin Rafiee; Mohammad Ataei

Volume 15, Issue 1 , January 2024, , Pages 381-399

https://doi.org/10.22044/jme.2023.13787.2560

Abstract
  Due to longwall mining, a large space without any support is created, and the in-situ stress regimes change. The change of the in-situ stress regimes affects the roof and face of the adjacent panel. In other words, the strata behavior would be different from the intact condition during the previous panel ...  Read More

Applying a Technical-Economic Approach to Calculate a Suitable Panel Width for Longwall Mining Method

S. Aghababaei; H. Jalalifar; A. Hosseini

Volume 12, Issue 1 , January 2021, , Pages 113-126

https://doi.org/10.22044/jme.2020.9552.1870

Abstract
  Providing an approach to calculate a suitable panel width for the longwall mining method is considered considering both the technical and economic factors. Based on the investigations carried out, a technical-economic model is proposed to calculate a suitable panel width. The proposed model is a combination ...  Read More

Rock Mechanics
Deformation mechanism and optimum design for large cross-sectional longwall installation roadway under compound roof

H.C. ZHAO; H.J. An; M.S. Gao

Volume 9, Issue 3 , July 2018, , Pages 771-784

https://doi.org/10.22044/jme.2018.6279.1449

Abstract
  Both the deformation characters and the failure mode of the large cross-sectional longwall installation roadway under compound roof are becoming an emergent issue than ever before due to the rapid development of modern mining equipment. Various engineering applications have revealed that the insufficient ...  Read More

Rock Mechanics
Long-term stability analysis of goaf area in longwall mining using minimum potential energy theory

M. Rezaei

Volume 9, Issue 1 , January 2018, , Pages 169-182

https://doi.org/10.22044/jme.2017.5950.1408

Abstract
  Estimation of the height of caved and fractured zones above a longwall panel along with the stability conditions of the goaf area are very crucial to determine the abutment stresses, ground subsidence, and face support as well as designing the surrounding gates and intervening pillars. In this work, ...  Read More