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Dongming Wang, Li Xu, Wei Gao, Hongwei Xia, Ning Guo and Xiaohan Ren
As an extremely important energy source, improving the efficiency and accuracy of coal classification is important for industrial production and pollution reduction. Laser-induced breakdown spectroscopy (LIBS) is a new technology for coal classification ...
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Quanhui Liu, Yuanbo Xue, Dan Ma and Qiang Li
Groundwater inrush hazard has always been a great threat to the construction of vertical shafts in coal mines. Generally, the failure of the water-resisting coal pillar under coupled stress-seepage conditions around the vertical shaft is the main reason ...
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Rishikesh Karthikeyan, Satyanaryanan Seshadri, V Subramanya Sarma and M Kamaraj
India?s growing power demands and emission norms require more efficient coal-based power plants. The shifting of power plants from subcritical to ultra-supercritical (USC) steam conditions could improve efficiency by 12% and reduce CO2" role="presentatio...
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Xiaolong Wang, Xin He and Xiaohua Wang
The extracts and extractive residues were obtained by single-stage extraction with acetone, CS2 and acetone/carbon disulphide solvent (IACDSM) under mild conditions, and they were then characterised by infrared and segmented peak fitting analysis. The re...
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Julia Karaeva, Svetlana Timofeeva, Marat Gilfanov, Marina Slobozhaninova, Olga Sidorkina, Ekaterina Luchkina, Vladimir Panchenko and Vadim Bolshev
Amaranthus retroflexus or redroot pigweed is a second generation lignocellulosic fuel. Each biomass sample (leaves, inflorescences and stems) was pyrolyzed in a lab-scale furnace, in a nitrogen atmosphere under non-isothermal conditions at heating rates ...
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Xue Dai, Xiaoqin Li, Yuguang Zhang, Wenping Li, Xiangsheng Meng, Liangning Li and Yanbo Han
With the gradual increase of coal production capacity, the issue of water hazards in coal seam roofs is increasing in prominence. Accurate and effective prediction of the water content of the roof aquifer, based on limited hydrogeological data, is critic...
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Feng Ju, Dong Wang, Zhongwei Wang, Meng Xiao, Zequan He, Pai Ning, Tengfei Wang, Cheng Zhou, Yazhen Zhang, Li Li and Chaosen Yan
The research conclusions of this paper can provide a reference for the analysis, design, and construction of water-related engineering in coal mines.
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Yongjian Zhu, Peng Li, Ping Wang, Chengcheng Mei, Heng Ren and Xizhi Wang
The mining of deep coal resources occurs in a high-stress geological environment as well as an engineering environment of rock excavation and unloading. Research on the re-bearing capacity characteristics and damage mechanism of rock masses damaged by pe...
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Zhe Xiang, Nong Zhang, Zhengzheng Xie and Chenghao Zhang
To study the damage and destruction behavior of small coal pillars in coal mine roadway driving along gobs under long-term in-situ stress and multiple engineering disturbances, an unconfined compression experiment under a discontinuous cyclic load was de...
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Zhengzheng Xie, Nong Zhang, Jin Wang, Zhe Xiang and Chenghao Zhang
With the characteristics of gradual instability in the supporting pressure area of roadway as the engineering background, this paper aims to explore the evolution law of pore and fracture in the coal sample under progressive loads. The low-field nuclear ...
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