Analysis and Optimization of Entry Stability in Underground Longwall Mining
نویسندگان
چکیده
منابع مشابه
Long-term stability analysis of goaf area in longwall mining using minimum potential energy theory
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, the height of caving-fracturing zone above the mined panel is considered as the height of destre...
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1 Department of Construction and Manufacture Engineering, Polytechnic School of Mieres, University of Oviedo, Mieres, 33600 Asturias, Spain 2Department of Exploitation and Prospecting Mines, Mining Engineering School, University of Oviedo, Oviedo, 33004 Asturias, Spain 3 Department of Exploitation Mines, Polytechnic University of Madrid, 28040 Madrid, Spain 4Department of Exploitation and Prosp...
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Stability of the retained goaf-side gateroad (RGSG) is influenced mainly by the movements of the roof strata near coal seam after coalface passes by. To make effective controlling technology for the stability of the RGSG, we analyze the roof structure over the RGSG to illustrate the mechanism causing the RGSG instability under different roof conditions. We then examine the dynamic evolution of ...
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ژورنال
عنوان ژورنال: Sustainability
سال: 2017
ISSN: 2071-1050
DOI: 10.3390/su9112079