Results 131 to 140 of about 353,530 (338)
Study on the effect of mining height on overburden strata movement in longwall mining
International Journal of Coal Science & TechnologyThe mining height of a coal seam is a critical factor influencing the detachment, collapse, and formation of the collapse angle of the strata during strata movement. To clarify the mechanism by which mining height affects strata movement characteristics,
Ying Ma +6 more
doaj +1 more source
Dynamic mechanical characteristics and engineering application of high elongation anchor cable
Meitan kexue jishuThe traditional anchor cable has low elongation, poor impact resistance, and is prone to brittle fracture failure under strong impact load, leading to roof fall, rock burst accidents and other problems in the roadway. Based on this, the anchor cable with
Yukai FU +4 more
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.CO2‐enhanced oil recovery (CO2‐EOR) is an economically viable carbon capture, utilization, and storage (CCUS) technique that is widely practiced and contributes significantly to the achievement of carbon‐neutral cities. However, few studies have been conducted on CO2‐EOR source–sink matching involving different emission sources, different carbon ...
Lingxiang Wei +8 more
wiley +1 more source
Meitan xuebaoIn response to the poor active support effect of the surface protection components in soft coal roadway and the continuous expansion of the broken range of local exposed surrounding rock, which leads to the failure of anchor rod and cables, a mesh ...
Guiyang YUAN +4 more
doaj +1 more source
Have Prices of Internationally Traded Steam Coal been Marginal Cost Based? [PDF]
During 2007 and 2008 steam coal prices soared to unprecedented levels. Since then much has been speculated about the drivers of these price peaks. This paper is concerned with the costs of steam coal allocation in the seaborne market and their influence ...
Paulus, Moritz, Trueby, Johannes
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Membangun Produk Peraturan Daerah Pertambangan Mineral dan Batubara Berbasis Cita Hukum Pancasila [PDF]
, 2017 Building the legal product of a regional regulation on mineral and coal mining is the authority of regional governments. In implementing their authority, they are required to apply Pancasila and embrace the 1945 Constitution of the Republic of Indonesia.
Sugirman, A. (Andi)
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Relation of Coal-Dust to Explosions in Coal-Mines [PDF]
Nature, 1886 IT is a stubborn and grievous fact that the loss of life by explosions in coal-mines has risen in the last decade, although the number of explosions has fallen. This points clearly to some essential defect in the remedies adopted. The remedies in use apply apparently to one class of explosions only, hence the decrease in the number of explosions.
openaire +2 more sources
Study on the diffusion and migration law of CO2 sequestrated in abandoned coal mine goaf
Deep Underground Science and Engineering, EarlyView.The goaf of an abandoned coal mine, endowed with expansive fracture spaces and an abundance of residual coal, can be capable of sequestrating substantial quantities of CO2. The residual coal is the principal medium for the sequestration of CO2 in the form of adsorption and the amount of sequestration is considerable.
Haiyang Zhou +4 more
wiley +1 more source
Meitan kexue jishuIn response to the challenging problem of deformation and failure of surrounding rock and support structures in roadways under rock burst, a comprehensive research approach involving numerical calculations, field measurements, and laboratory experiments ...
Yongzheng WU +4 more
doaj +1 more source