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- W2389750700 abstract "The mechanics model was applied to quantitatively analyze the goaf width to cause the broken of the igneous rock.The FLAC5.0 nuerical simulation software was applied to analyze the vertical stress distribution conditions after the mining operation of the II 102 Coal mining face.The numerical simulation results showed that the igneous rock roof in the II 1022 and Ⅱ1024 coal mining faces after the mining operations would become the main support mass and there was no broken occurred in the roof.After the mining operation of the II 1026 coal mining face,the igneous rock roof lost the stability and under the high stress condition,the igneous rock with the outer dynamic interferences would be broken at any time.The analysis on the mine seismic distribution features showed that there was less mine seismic distribution in the inner and top strata of the igneous rocks and after the mining operation of the II 1024 coal mining face,the igneous rock was not broken and but in stable.There were relevant serious activities in the strata below the igneous rocks and there was a parting between the igneous rock and the strata below the igneous rock.The ultra thick igneous rock was the main key stratum of the II 102 mining block and controlled the movement of the strata above the igneous rock.Therefore the mine seismic distribution mainly distributed the strata below the igneous rock.The analysis on the mine seismic distribution features could provide the theoretical references to monitor and measure the stability status of the igneous rock." @default.
- W2389750700 created "2016-06-24" @default.
- W2389750700 creator A5087917433 @default.
- W2389750700 date "2010-01-01" @default.
- W2389750700 modified "2023-09-23" @default.
- W2389750700 title "Analysis on mine seismic distribution features under ultra thick igneous rock" @default.
- W2389750700 hasPublicationYear "2010" @default.
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