Results 31 to 40 of about 8,212,561 (277)
Effect of Face Length in Initial Mining Stage of Fully Mechanized Top-coal Caving Face With Large Mining Height [PDF]
Geotechnical and Geological Engineering, 2021 Abstract Based on the field measurement of the end resistance of the support during the initial weighting of the basic roof and the macroscopic mine pressure behavior during the weighting period of 101,22211,103 and 301 fully mechanized caving face in Changchun Xing Coal Mine, the mine pressure law of the working face is summarized and compared,
Jianhang Wang +4 more
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Meikuang Anquan, 2020 This paper systematically summarizes the development process of fully mechanized top coal caving technology and equipment in Yankuang Group in recent 30 years.
MENG Xiangjun, LI Mingzhong, YUE Ning, SUN Jishuang
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Prevention Technology for Strong Mine Pressure Disaster in the Hard-Roof Large-Mining-Height Working Face [PDF]
Shock and Vibration, 2020 The movement and destruction of the hard roof in a stope is an important reason for the occurrence of strong ground pressure disasters at the working face. Considering Tongxin Coal Mine as the engineering background, the stress distribution law of the surrounding rock and the overburden rock damage characteristics of a large-mining-height working face ...
Hongfei Duan, Lijuan Zhao
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An Investigation in Efficient Spatial Patterns Mining [PDF]
The technical progress in computerized spatial data acquisition and storage results in the growth of vast spatial databases. Faced with large amounts of increasing spatial data, a terminal user has more difficulty in understanding them without the ...
Wang, Lizhen
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Control of Gob-Side Roadway with Large Mining Height in Inclined Thick Coal Seam: A Case Study
Shock and Vibration, 2021 The gob-side roadway of 130205, a large-mining-height working face in the Yangchangwan coal mine, was investigated in terms of the mine pressure law and support technology for large mining heights and narrow coal pillars for mining roadways. The research
Xie Fuxing
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Ontology of core data mining entities [PDF]
, 2014 In this article, we present OntoDM-core, an ontology of core data mining entities. OntoDM-core defines themost essential datamining entities in a three-layered ontological structure comprising of a specification, an implementation and an application ...
Dzeroski, S, Soldatova, L, Panov, P
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IOP Conference Series: Earth and Environmental Science, 2020 Abstract In terms of the problems of the development height of the “two zones” of overburden in the fully mechanized mining face was difficult to predict, taking the 31303 working face in Chahasu coal mine as an example, methods of empirical formula, leakage of drilling fluid and borehole colour TV were used for prediction and ...
Mingze Du, Fanlong Kong, Donghao Wang
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Shock and Vibration, 2020 In order to study the changing rules of displacement filed and stress field of overlying strata on isolated pillar with filling mining method, a self-designed model of isolated pillar with an equivalent mining height and a monitoring system of stress is ...
Yang Chen +5 more
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Meikuang Anquan, 2020 There are a lot of coal left in goaf at the both air inlet and outflow sides of large mining height face, where the air leakage is large, and large scope of spontaneous fire takes place easily.
ZHAO Like, ZHANG Xinhai, ZHENG Zhongming
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Meitan kexue jishuThe reserves and production of thick coal seams account for half of the total reserves and production of raw coal in China. By combing the history of thick coal seam mining, we summarize the technology and equipment development practice of thick coal ...
Huijun HAN +5 more
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