Analysis of Pressure Relief Effect on the Protective Layer of Hard Roof and Extra-Thickness Coal Seam Mining
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0600-1
Abstract: The roof of Tashan coal mine was hard and difficult to fall. In the process of fully mechanized coal caving in the Carboniferous extra-thick coal seam, the strong pressure and rock burst appeared in the… read more here.
Keywords: seam; layer; coal; working face ... See more keywords
Roof Broken Characteristics and Overburden Migration Law of Upper Seam in Upward Mining of Close Seam Group
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DOI: 10.1007/s10706-019-00836-x
Abstract: Aiming at the problem that the roof broken characteristics and overburden migration law of upper coal seam are not clear due to the disturbance of repeated mining in underlying coal seams, this paper takes a… read more here.
Keywords: seam; characteristics overburden; coal; broken characteristics ... See more keywords
Ranking and Evaluating the Coal Seam Mechanization Based on Geological Conditions
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DOI: 10.1007/s10706-020-01200-0
Abstract: Nowadays, in the coal mining industry, achieve to goals such as high production rates and efficiency with increasing safety and reducing production costs needs to using mechanized mining methods and advanced equipment. As case studies,… read more here.
Keywords: evaluating coal; mechanization; mechanization based; coal ... See more keywords
Rock burst assessment in multi-seam mining: a case study
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DOI: 10.1007/s12517-017-2979-z
Abstract: To assess rock burst prone zones in the lower seam during multi-seam mining, a rock burst hazard assessment method for use in multi-seam mining was established. According to the observed geological evolution, the feasibility of… read more here.
Keywords: multi; rock; assessment; rock burst ... See more keywords
Model test study on overburden settlement law in coal seam backfill mining based on fiber Bragg grating technology
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-019-4564-0
Abstract: Taking section 3600 of Pingzhuangxi coal mine as the prototype, we made the test model based on the theory of similarity, used the fiber Bragg grating (FBG) to study the deformation characteristics of overburden in… read more here.
Keywords: fiber bragg; bragg grating; coal; seam ... See more keywords
Distribution of Inertinites in the Early Paleogene Lignites of Western India: On the Possibility of Wildfire Activities
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Geological Society of India"
DOI: 10.1007/s12594-019-1213-x
Abstract: In the present investigation 643 samples from early Paleogene lignite seams of western India have been studied to see the distribution of inertinites. These horizons are characterized by high content of charcoal occuring as inertinite… read more here.
Keywords: wildfire activities; early paleogene; distribution inertinites; western india ... See more keywords
Field investigation of fractures evolution in overlying strata caused by extraction of the jurassic and carboniferous coal seams and its application: Case study
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Coal Geology"
DOI: 10.1016/j.coal.2019.04.002
Abstract: Abstract In multiple seam coal mining, the fractures induced by the mining of the lower coal seam may propagate to the goaf of the upper coal seam that is mined earlier. The fracture connection leads… read more here.
Keywords: gas; coal seam; seam; fracture ... See more keywords
Mechanical analysis of effective pressure relief protection range of upper protective seam mining
Sign Up to like & getrecommendations! Published in 2017 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2017.03.021
Abstract: Abstract This paper analyzes the control mechanism of coal and gas outbursts and proposes the concept of an effective pressure relief protection range, based on the stress relief of the underlying coal-rock mass and the… read more here.
Keywords: relief; mining; pressure relief; relief protection ... See more keywords
Deep seam and minesoil carbon sequestration potential of the South Wales Coalfield, UK.
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DOI: 10.1016/j.jenvman.2019.109325
Abstract: Combustion of coal for energy generation has been a significant contributor to increased concentrations of atmospheric carbon dioxide. It is of interest to evaluate the potential of former coalfields for mitigating these increases by carbon… read more here.
Keywords: sequestration; carbon; south wales; carbon dioxide ... See more keywords
Welding seam tracking in robotic gas metal arc welding
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2017.04.025
Abstract: Abstract In order to improve the welding quality of robotic gas metal arc welding (GMAW), a welding system for seam tracking is developed based on a purpose-built vision sensor. By analyzing the features of robotic… read more here.
Keywords: seam tracking; gas metal; robotic gas; metal arc ... See more keywords
Mining-induced seismicity of a seam located in rock mass made of thick sandstone layers with very low strength and deformation parameters
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sustainable Mining"
DOI: 10.1016/j.jsm.2018.08.002
Abstract: Abstract The paper presents the results of calculations and analyses aimed at explaining the cause and mechanism of strong seismic events E ≥ 105 J (local magnitude, Ml ≥ 1.7). Their source are thick and at the same time weak… read more here.
Keywords: seam; rock; rock mass; mining induced ... See more keywords