Movement type of the first subordinate key stratum and its influence on strata behavior in the fully mechanized face with large mining height
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-018-4208-9
Abstract: The extraction height of a fully mechanized face with large mining height is large, so the mining-induced overlying strata failure area will be enlarged, which may result in various accidents such as water inrush accidents.… read more here.
Keywords: key stratum; movement; first subordinate; structure ... See more keywords
Sliding instability characteristics and re-stabilization mechanism of key stratum in thin-topsoil SCS mining: a computer-aided case study from the Niushan Coal Mine, China
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DOI: 10.1007/s12665-019-8691-4
Abstract: Roof step subsidence and support crushing accidents caused by the sliding instability of fractured single key stratum often occur in shallow coal seam (SCS). For this reason, the exploration of fracture displacement laws and control… read more here.
Keywords: key stratum; sliding instability; scs; topsoil ... See more keywords
Strong Ground Pressure Mechanism and Control at the Longwall Top Coal Caving with a Single Key Stratum in Goaf
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DOI: 10.1155/2020/8835101
Abstract: A strong ground pressure in the multiseam environment manifested by rib spalling and roadway deformation at the fully mechanized working face was assessed by a comprehensive combination of field measurements, physical simulations, and theoretical analysis… read more here.
Keywords: key stratum; ground pressure; stratum; working face ... See more keywords
Theoretical Analysis on Stress and Deformation of Overburden Key Stratum in Solid Filling Coal Mining Based on the Multilayer Winkler Foundation Beam Model
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DOI: 10.1155/2021/6693888
Abstract: Solid backfill coal mining (SBCM) is a green mining technology which can effectively alleviate the environmental problems induced by traditional coal mining techniques, such as surface subsidence, water resources loss, coal gangue occupation, and pollution.… read more here.
Keywords: key stratum; stress; mining; coal mining ... See more keywords