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Mining Publication: Analysis of Global and Local Stress Changes in a Longwall Gateroad
Keywords: Headgates Horizontal stress Longwall mining Numerical modeling
Original creation date: January 2018
Authors: I Tulu, G Esterhuizen, D Gearhart, T Klemetti, K Mohamed, W Su
Peer Reviewed Journal Article - February 2019
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NIOSHTIC2 Number: 20050742
Int J Min Sci Technol 2018 Jan; 28(1):127-135
A numerical-model-based approach was recently developed for estimating the changes in both the horizontal and vertical loading conditions induced by an approaching longwall face. In this approach, a systematic procedure is used to estimate the model’s inputs. Shearing along the bedding planes is modeled with ubiquitous joint elements and interface elements. Coal is modeled with a newly developed coal mass model. The response of the gob is calibrated with back analysis of subsidence data and the results of previously published laboratory tests on rock fragments. The model results were verified with the subsidence and stress data recently collected from a longwall mine in the eastern United States.
First page of Analysis of Global and Local Stress Changes in a Longwall GateroadPeer Reviewed Journal Article - February 2019
Go to Web Page
NIOSHTIC2 Number: 20050742
Int J Min Sci Technol 2018 Jan; 28(1):127-135
See Also
Analysis and Design Considerations for Superimposed Longwall Gate Roads
Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
Development of Numerical Models to Investigate Permeability Changes and Gas Emission around Longwall Mining Panel
Evaluation of the Impact of Standing Support on Ground Behavior in Longwall Tailgates
Horizontal Stress and Longwall Headgate Ground Control
Modeling the Effects of Longwall Mining on the Ground Water System
Performance of Roof Support Under High Stress in a U.S. Coal Mine
Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors
The State-of-the-Art in Coal Pillar Design
Stress Measurements for Safety Decisions in Longwall Coal
Page last reviewed: July 17, 2019
Page last updated: July 17, 2019
Content source: National Institute for Occupational Safety and Health, Mining Program
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