ICGCM Papers:
Numerical Modeling Developments and Applications III
 
 
Investigation of the Influence of Mining with Caving on Deformation of Roadway Located in Close Proximity of Longwall Panel
32nd International Conference on Ground Control in Mining
Investigation of the Influence of Mining with Caving on Deformation of Roadway Located in Close Proximity of Longwall Panel
by
Andrzej WalentekStanislaw PrusekSylwester Rajwa, Central Mining Institute, Katowice, PolandMarek Celmer, Coal Mine Jas-Mos, Jastrzebie Zdroj, PolandRyszard Skatula, Coal Mine Jas-Mos, Jastrzebie Zdroj, PolandAleksander Wrana, Central Mining Institute, Katowice, Poland
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[Conference] 32nd International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Numerical Modeling Developments and Applications III
[Author] Andrzej WalentekStanislaw PrusekSylwester Rajwa, Central Mining Institute, Katowice, PolandMarek Celmer, Coal Mine Jas-Mos, Jastrzebie Zdroj, PolandRyszard Skatula, Coal Mine Jas-Mos, Jastrzebie Zdroj, PolandAleksander Wrana, Central Mining Institute, Katowice, Poland
[Abstract] 
Key Conclusions:
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Additional calculations and analysis showed that the main cause of differences was underestimation of influence of dynamic load, which was an effect of numerous low energetic rockmass tremors. Conclusions formulated on that base allow in future similar designing works for obtaining more accurate results
Key Findings:
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In order to verify developed prognosis, in analyzed roadway the underground investigations in scope of convergence measurement and changes of load exerted on working support were carried. As a result of these investigations it was found that real convergence on certain part of roadway was significantly larger then determined in prognosis.
Objective of the Paper:
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Numerical calculation for assessment of the influence of advancing excavation front on convergence of roadway located 30 meters above analyzed longwall
Problem Statement:
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In polish coal mining due to specificity of seams lying the multilayer extraction is used. This kind of mining causes that already at the stage of working designing it is essential to take into account all geological and mining conditions which have an influence on stability and functionality of workings during their using