Results 31 to 40 of about 349,685 (239)
Mechanical properties and energy evolutions of burst-prone coal samples with holes and fillings
International Journal of Coal Science & TechnologyDuring the mining process of impact-prone coal seams, drilling pressure relief can reduce the impact propensity of the coal seam, but it also reduces the integrity and strength of the coal mass at the side of the roadway.
Yukai Fu +5 more
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Geofluids, 2022 The gob-side roadway technology is widely used in coal mining in China, as it can improves the recovery rate of coal resources and alleviate the shortage of mining replacement.
Houqiang Yang +8 more
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SUSTAINABLE DEVELOPMENT OF TERRITORIES OF MINING REGIONS [PDF]
, 2018 Developing innovative technologies of mining coal seams and increasing the competitiveness of coal produced and providing further diversification of the mine using the "post-mining" concept as the basis for sustainable ...
DUBOVIK, Oleksandr, LOHUNOVA, Oleksandra
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Geofluids, 2022 In order to avoid the problem of repeated repair of roadways in the upper mining area of upward mining in the integrated mine, taking the roadways in the 302 mining area of Shancheng Coal Mine as the research object, the failure characteristics of ...
Fengfeng Wu +5 more
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Application of satellite radar interferometry (PSInSAR) in analysis of secondary surface deformations in mining areas. Case studies from Czech Republic and Poland [PDF]
, 2018 Secondary deformations are ground movements occurring in areas of ceased underground mining. These are associated with delayed readjustment of rock mass resulting in subsidence, discontinuous deformations (sinks, cracks, etc.) due to destruction of ...
Blachowski, Jan +4 more
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Annals of Coal Mining and the Coal Trade [PDF]
Nature, 1905 IN a former volume (noticed in NATURE, vol. lix. p. 337) the author carried his annals of coal I mining down to the period of the Select Committee of the House of Commons on Accidents in Mines in 1834. He now continues the subject to the passing of the Coal Mines Inspection Act of 1850, and to the establishment of the Royal School of Mines. This volume,
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Application of Homogenized Load-Bearing Ring Hypothesis in Roadway Supporting
Shock and Vibration, 2022 Artificial support system takes advantages of self-bearing capacity of surrounding rock mass in roadway support, which is one of the important supporting ideas in modern times.
Quntao Zhang +9 more
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From Mining to Post-Mining: The Sustainable Development Strategy of the German Hard Coal Mining Industry [PDF]
, 2017 By the end of the 1950s, the German coal mining industry produced 150 million tons of hard coal per year in 170 collieries with 600,000 employees. At that time, 70% of the primary energy demand of the Federal Republic of Germany was covered by domestic ...
Efremenkov, Andrey Borisovich +2 more
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Annals of Coal Mining and the Coal Trade [PDF]
Nature, 1899 THE scientific study of any art or industry demands, almost as a matter of necessity, that its history should not be neglected, for it is only when its mode of evolution has been clearly traced that the principles upon which it depends can be thoroughly understood.
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