Results 41 to 50 of about 2,553 (189)
Raise Caving—A Hybrid Mining Method Addressing Current Deep Cave Mining Challenges
BHM Berg- und Hüttenmännische Monatshefte, 2022 AbstractCave mining progresses to depths exceeding 1000 m and ore bodies situated in competent and strong rock masses are nowadays extracted by different cave mining methods. Widely applied caving methods in massive deposits are block and panel caving, inclined caving, and sublevel caving.
Tobias Ladinig +4 more
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Research on the characteristics of the falling behavior of mixed coal and gangue
Gong-kuang zidonghuaTraditional studies on the dynamic characteristics of coal flow during the top coal caving process, based on image detection technology, have primarily focused on specific-stage image analysis, lacking a comprehensive analysis of dynamic characteristics ...
SHAN Pengfei +3 more
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Study on precise control of coal caving mechanisms based on the kinematics of support structures
Gong-kuang zidonghuaPrecise control of the coal caving mechanism is a crucial foundation for realizing intelligent and unmanned top coal caving mining. The spatial relationship between the coal caving mechanism and the rear scraper conveyor, as well as the top coal ...
WANG Zuguang +6 more
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Frontiers in Earth Science, 2022 With the ending of deep-concave open-pit phosphorite extractions and gradual exhausting of shallow mineral resources, stoping of phosphorite seams has entered or will enter into underground mining.
Xiaoshuang Li +5 more
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Open Geosciences, 2019 Aiming at the problem of the sudden increase of the working resistance of the support in the transition section of the mixed workface, this paper adopts the physical simulation to study the fracture and movement characteristics of the overburden strata ...
Tai Yang, Guo Shuai, Fang Kun
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Contribution of culture-independent methods to cave aerobiology: The case of Lascaux Cave
, 2014 Peer ...
Martín Sánchez, Pedro Mª +1 more
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Energies, 2021 China recently implemented a “Green Mine” policy focused on promoting the filling method, aiming to mitigate the environmental impacts of underground mining; nevertheless, quantitative inventories have rarely been provided to support or negate such ...
Yang Liu +5 more
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MATEC Web of Conferences, 2015 According to the characteristics of the 1-2 coal seam of Shangwan coal mine 4th panel, this research analyzed the feasibility of sublevel caving hydraulic support in the fully-mechanized mining face through estimation method and numerical simulation ...
Liu Yingjie, Wang Xiaomou
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digitAR - Digital Journal of Archaeology, Architecture and Arts, 2018 This paper presents the results of the geophysical survey to mapping a section of the "Lapa do sono" cave, situated in Serra da Arrábida (Sesimbra), which is known to have had funerary occupation in the old Neolithic Age. Nowadays this cave finds itself widely obstructed by sediments, whose extension we intent know.
Caldeira, Bento +5 more
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Optimization of the parameters of sublevel caving method on the example of the Sasa Mine [PDF]
, 2006 The sublevel method of caving of the ore and wallrocks in the Sasa Mine has been used since the mine was put into operation. It is used mainly for excavation of ore bodies whose hanging wallrocks (schists) are prone to caving.
Markovski, Slobodan +2 more
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