The variations of free radical and index gas CO in spontaneous combustion of coal gangue under different oxygen concentrations
Sign Up to like & getrecommendations! Published in 2021 at "Fire and Materials"
DOI: 10.1002/fam.3000
Abstract: In order to study the effect of oxygen concentrations on the change of active groups in the oxidation process of coal gangue, the airflows of different oxygen concentrations were prepared to simulate the oxidation and… read more here.
Keywords: gangue; oxygen concentrations; oxygen; coal gangue ... See more keywords
Gangue-Cemented Fill in Goaf to Control Surface Subsidence During Longwall Mining: A Case Study from the Huaheng Coal Mine, China
Sign Up to like & getrecommendations! Published in 2019 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-00768-y
Abstract: Surface subsidence can cause both damage to infrastructure and a number of different environmental problems. These include surface water accumulations, loss of farmland, cracks and other damage to roads and bridges, and, in the most… read more here.
Keywords: surface subsidence; mining; gangue; subsidence ... See more keywords
Characteristics, speciation, and bioavailability of mercury and methylmercury impacted by an abandoned coal gangue in southwestern China
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-019-06775-7
Abstract: During coal mining activities, a lot of coal gangue is produced, which usually contains high mercury (Hg) concentrations as well as the acid mine drainage (AMD) generator of pyrite. In the present study, the total… read more here.
Keywords: coal gangue; bioavailability; gangue; soil ... See more keywords
Research on the technology of detection and risk assessment of fire areas in gangue hills
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-020-09847-1
Abstract: Coal gangue hills are prone to spontaneous combustion, thereby polluting the environment of mining areas such as the soil, groundwater, and atmosphere, and the frequent occurrence of gangue hill collapses, landslides, explosions, and other accidents… read more here.
Keywords: risk; research; risk assessment; gangue ... See more keywords
Deformation prediction and analysis of underground mining during stacking of dry gangue in open-pit based on response surface methodology
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Central South University"
DOI: 10.1007/s11771-018-3746-3
Abstract: Deformation prediction and the analysis of underground goaf are important to the safe and efficient recovery of residual ore when shifting from open-pit mining to underground mining. To address the comprehensive problem of stability in… read more here.
Keywords: methodology; prediction analysis; gangue; deformation prediction ... See more keywords
The influence of fly ash content on ITZ microstructure of coal gangue concrete
Sign Up to like & getrecommendations! Published in 2021 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2021.123562
Abstract: Abstract Coal gangue is the main solid waste produced in coal mining, and the resource utilization of coal gangue has become a popular topic in the industry. It is gradually applied that coal gangue concrete… read more here.
Keywords: gangue concrete; gangue; itz; coal gangue ... See more keywords
Characteristics of sulfate-reducing bacteria and organic bactericides and their potential to mitigate pollution caused by coal gangue acidification
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Technology and Innovation"
DOI: 10.1016/j.eti.2020.101142
Abstract: Abstract High-salinity acid drainage and spontaneous combustion caused by the oxidation of coal gangue piles are one of the pollution sources that seriously harm the environment in coal mine areas. Using sulfate-reducing bacteria, Bacillus subtilis… read more here.
Keywords: organic bactericides; coal gangue; gangue; sulfate reducing ... See more keywords
Study on the effect of multiple non-breathable gangue occurrence on gas migration in coal seams
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2021.109190
Abstract: Abstract As the mining environment gradually moves toward deep, the form and occurrence mode of gangue are more complex. The occurrence of non-breathable gangue seriously worsens gas migration conditions, which greatly reduces the gas extraction… read more here.
Keywords: gas; gas migration; gangue; occurrence ... See more keywords
Study on compressive strength and durability of alkali-activated coal gangue-slag concrete and its mechanism
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DOI: 10.1016/j.powtec.2020.04.054
Abstract: Abstract In this paper, AACGS concrete was prepared by using raw and 700 °C calcined coal gangue as the coarse aggregate and alkali-activated coal gangue-slag (AACGS) as the cementitious material. The variation of compressive strength and… read more here.
Keywords: aacgs concrete; coal gangue; gangue; compressive strength ... See more keywords
Selenium in Chinese coal gangue: Distribution, availability, and recommendations
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DOI: 10.1016/j.resconrec.2019.05.039
Abstract: Abstract Coal gangue accounts for a large proportion of the solid waste in China, and greater attention has been focused on the concentrations of potentially hazardous trace elements (PHEs) than on the potentially useful trace… read more here.
Keywords: gangue distribution; chinese coal; selenium chinese; gangue ... See more keywords
Vibration Response Analysis of the Tail Beam of Hydraulic Support Impacted by Coal Gangue Particles with Different Shapes
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c06279
Abstract: The existing research on coal gangue identification based on vibration usually assumes that coal gangue particles are ideal shapes. To understand the vibration response difference in hydraulic support caused by coal and gangue with real… read more here.
Keywords: gangue; vibration; coal gangue; tail beam ... See more keywords