Stress State of a Coal Pillar in Fully Mechanized Longwall Mining in Dislocation Zone
V. M. SERYAKOV1, S. V. RIB2, V. N. FRYANOV2
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Siberain State Industrial University, ul. Kirova 42, Novokuznetsk, 654007 Russia
Keywords: угольные шахты, геологическое нарушение, механизированный комплекс, монтажная и демонтажная камеры, напряжения, смещения, разрушение, ширина целика, coal mine, dislocation, fully mechanized longwall mining system, assembling and disassembling rooms, stress, displacement, failure, pillar width
Abstract
Stress state of rock mass during fully mechanized longwalling in dislocation zone is analyzed. In focus is the variant of crossing the dislocation zone with disassembling the fully mechanized longwall system and its re-assembling in a new room. Stress redistribution in coal and host rocks when heading approaches dislocation and in post-dislocation mining from the new assembling room is determined.
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