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Mining Publication: Numerical Simulation of Roof Cavings in Several Kuzbass Mines Using Finite-difference Continuum Damage Mechanics Approach
Keywords: Caving Longwall mining Mine design Numerical modeling
Original creation date: March 2020
Authors: M Eremin, G Esterhuizen, I Smolin
Peer Reviewed Journal Article - March 2020
Go to Web Page
NIOSHTIC2 Number: 20058507
Int J Min Sci Technol 2020 Mar; 30(2):157-166
An essential stage of mine design is an estimation of the steps of the first and periodic roof caving in longwall mines. Generally, this is carried out using the field experience and can be much enhanced by numerical simulation. In this work, the finite-difference method was applied coupled with the continuum damage mechanics (CDM) approach to simulate the stress-strain evolution of the rock mass with the underground opening during coal extraction. The steps and stages of roof caving were estimated relying on the numerical simulation data, and they were compared with the field data from several operating mines in the south of the Kuznetsk Basin, Russia. The dependence of the first roof caving step in simulation linearly correlates with field data. The results correspond to the actual roofs of longwall panels of the flat-dipping coal seams and the average rate of face advancement is approximately 5 m/day.
First page of Numerical Simulation of Roof Cavings in Several Kuzbass Mines Using Finite-difference Continuum Damage Mechanics ApproachPeer Reviewed Journal Article - March 2020
Go to Web Page
NIOSHTIC2 Number: 20058507
Int J Min Sci Technol 2020 Mar; 30(2):157-166
See Also
Critical Review of Numerical Stress Analysis Tools for Deep Coal Longwall Panels Under Strong Strata
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
Modeling the Effects of Longwall Mining on the Ground Water System
Numerical Model Calibration for Simulating Coal Pillars, Gob and Overburden Response
Numerical Modeling Procedures for Practical Coal Mine Design
Rock Mechanics Investigations at the Lucky Friday Mine (In Three Parts): 1. Instrumentation of an Experimental Underhand Longwall Stope
The State-of-the-Art in Coal Pillar Design
Using Site Case Histories of Multiple Seam Coal Mining to Advance Mine Design
Page last reviewed: March 7, 2022
Page last updated: March 7, 2022
Content source: National Institute for Occupational Safety and Health, Mining Program
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