Results 21 to 30 of about 765,751 (280)
Risk assessment and mechanism of rock burst for deep soft coal roadways. [PDF]
Sci RepThe occurrence of rock burst is related to the physical properties of coal-bearing strata. Under the same mining conditions, the excavation of soft coal seams at 1000 m or deeper has a lower risk of rock burst.
Tian X, Dou L, Hu S, Ma X, Lu F.
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Meitan kexue jishuThe roof breaking movement of steeply inclined and ultra-thick coal seam mining is complex, and the evolution law of stress and energy is special. Under the influence of deep ‘three highs and one disturbance’, the prevention and control of rock burst is ...
Linming DOU +5 more
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Shock and Vibration, 2023 The occurrence regularity of the coal mine earthquake under the influence of hard roof, fault, and mining was studied by theoretical analysis, field investigation, and monitoring data analysis for the phenomenon of rock burst induced by coal mine ...
Pengfei Lyu, Yijian Geng
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Multi-level fuzzy comprehensive evaluation of rock burst risk in coal mine. [PDF]
Sci RepAs the depth of coal mining continues to increase, mining disturbances can easily induce rock bursts, which seriously restricts the safe and efficient production of the mine. Therefore, we took a combination of theoretical analysis, mathematical modeling,
Zhang J, Wang B, Lv Y.
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Gong-kuang zidonghuaThe automatic perception and alarm method for coal mine rock burst and coal and gas outburst is an effective measure to timely detect accidents and emergency rescue, reduce casualties, avoid or reduce secondary accidents such as gas and coal dust ...
SUN Jiping, CHENG Jijie
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Journal of Rock Mechanics and Geotechnical Engineering, 2016 An investigation was conducted on the overall burst-instability of isolated coal pillars by means of the possibility index diagnosis method (PIDM). First, the abutment pressure calculation model of the gob in side direction was established to derive the ...
Junfei Zhang +3 more
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Meitan xuebaoIn view of the rock burst disaster of deep coal roadway, explore the rock burst mechanism and develop the key prevention technology, based on the “Mechanism of rock burst in deep coal tunnel surroundings due to stress difference gradient” which attaches ...
Guolei LIU +6 more
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Failure test and strength model of high-porous low-cementitious waste backfilling material
Meitan kexue jishu, 2023 In order to alleviate the shortage of underground aggregate sources and time cost of vibration and compaction during backfilling, a new type of high-porous low-cementitious waste backfilling material (HPLCM), which was composed of self-compacting slurry ...
Chunyang CUI +5 more
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Study of Gob-Side Entry Retaining Technology with Roof Cutting under Upper Roadway Condition
Shock and Vibration, 2021 Gob-side entry retaining technology with roof cutting (GERRC) has been widely used in flat and near-flat coal seam conditions, but its application under inclined coal seam is still very deficient.
Xingen Ma +5 more
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Research on Multifactor Analysis and Quantitative Evaluation Method of Rockburst Risk in Coal Mines
Lithosphere, 2022 The prevention of rockbursts is significant to ensure mining safety in deep coal mines. The multifactor analysis and a new quantitative evaluation method for rockbursts in coal mines are proposed in this study.
Weisheng Du +4 more
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