Results 161 to 170 of about 1,325 (191)

Technological optimization of fully mechanized caving mining face with large mining heights

Journal of Coal Science and Engineering (China), 2013
Fully mechanized cave mining with large mining height is a new mining method, due to its large mining thickness and lower roadway excavation, the technology has been widely used in China’s thick seam mining. In order to improve the top-coal recovery ratio of fully mechanized cave mining with large mining height, a study was conducted on optimizing the ...
Lu-Jia Fan, Sheng-Li Yang
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Study on Suddenly Extrusion Mechanism and Forecasting of Deep Mine Fully Mechanized Mine Head Face

Advanced Materials Research, 2011
In view of the Huai Nan mining area deep mine Dingji mine fully mechanized mine head face low-index outburst suddenly extrusion the region gas geological feature, analysis mechanism of the suddenly extrusion frictional sliding instability. The research gain sensitive index critical value drilling bits S and depth of hole coefficient S′, drilling gas ...
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Optimization of the fully-mechanized stoping face length and efficiency in a coal mine

Journal of Mining Science, 2013
The authors formulate a problem and present analytical solutions on optimizing length of a fully-mechanized stoping face based on the maximum profit criterion.
A. A. Ordin, A. A. Metel’kov
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Mine pressure prediction model of fully mechanized mining face based on Improved Transformer

2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2022
Yaping Liu, Lihong Dong, Ou Ye
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Fuzzy Synthetic Evaluation on Safety of Fully Mechanized Mining Faces Based on Entropy Weight

2008 Fifth International Conference on Fuzzy Systems and Knowledge Discovery, 2008
Entropy weight is a kind of objective weight. It can be calculated in terms of information entropy which was put forward by Shannon. If entropy weight was applied in the model of fuzzy synthetic evaluation, the subjectivity can be avoided during ascertaining weights.
Yuzhong Yang, Liyun Wu
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Output Prediction Model in Fully Mechanized Mining Face Based on Support Vector Machine

2009 Second International Workshop on Knowledge Discovery and Data Mining, 2009
Support Vector Machine is a new machine learning technique developed on the basis of Statistical Learning Theory, which has become the hotspot of machine learning because of its excellent learning performance. Based on analyzing the theory of support vector machine for regression (SVR), a SVR model is established for predicting the output in fully ...
Wanqing Li 0002, Yong Zhao, Wenqing Meng, Shipeng Xu   +3 more
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Application Research on Coal Mining Technology in Fully Mechanized Mining Face

Foreign Language Science and Technology Journal Database Engineering Technology, 2022
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Discussion on the Layout of the Fault in Fully Mechanized Mining Face

Mine Engineering, 2020
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Numerical Simulation of the Dust Movement Rule at a Fully Mechanized Mining Face in Liangshuijing Coal Mine

2018
In order to study the movement pattern of dust generated during support advancing and shearer cutting at # 42,112 fully mechanized mining face in Liangshuijing Coal Mine, a mathematical and physical model were established and the simulation based on gas-solid two-phase flow interaction was carried out.
Jian-guo Wang, Fei-wen Qi, Ya-ru Zhe, Ya-ping Zhang   +3 more
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Research on Application of Intelligent Mining Technology in Fully Mechanized Coal Mining Face

Foreign Language Science and Technology Journal Database Engineering Technology, 2022
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