Results 31 to 40 of about 1,770 (209)
Gas concentration prediction model for fully mechanized coal mining face
Gong-kuang zidonghua, 2018 In view of problems of gas concentration prediction method based on least squares support vector machine (LS-SVM) such as easy to fall into local optimal solution, low search efficiency and easy to occur premature convergence during parameter optimization process, a gas concentration prediction model based on ACO-LS-SVM was proposed.
LI Huan +3 more
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Research of Fully Mechanized Mining Technology of Ultra-thin Coal Seam and Its Applicatio
Gong-kuang zidonghua, 2011 The paper introduced existing status of domestic mining technology of ultra-thin coal seam and pointed out that existing fully mechanized mining equipments are not suitable for mining ultra-thin coal seam.
SU Jun-yan +4 more
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Gong-kuang zidonghua, 2018 In order to solve problems of large number of workers and high labor intensity on fully mechanized mining face with large mining height, according to actual situation of No.2 Coal Mine of Huangling Mining Group Co., Ltd., technical difficulties such as precise control of rib spalling, soft bottom frame and equipment reliability, precision of perception
FAN Jingdao
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Development status and prospect on key technical equipment of high efficiency fully mechanized mining in super high and super long working face [PDF]
Meitan kexue jishuAs an important energy support for China”s economic development, coal will remain dominant in energy consumption for a period of time in the future.
Mingzhong LI +10 more
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Clarity method of fog and dust image in fully mechanized mining face
Machine Vision and Applications, 2022 At present, the abnormal state of equipment and surrounding rocks in the fully mechanized mining face is mainly detected by visual methods. However, the vision sensor works in a low-light environment and it is affected by factors such as water fog and dust, which lead to blurred images.
Qinghua Mao +5 more
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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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UDEC Numerical Analysis for Surface Subsidence Characteristics Under Different Mining Methods
Meikuang Anquan, 2020 UDEC is used to analyze the surface subsidence characteristics under different steps of fully mechanized and layered mining face. The research results show that the trend of surface subsidence in the lower layer mining face and the fully mechanized ...
LIU Zhaoxing
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A robust method for dynamic image stitching on a fully mechanized mining face [PDF]
Journal of Geophysics and Engineering, 2021 Abstract Video surveillance systems can be applied in coal mines for remote monitoring and for production control. Stitching video images into a panorama enhances the usability of video systems, since a panorama offers a wider view than single images do.
Ben Li, Shanjun Mao, Mei Li
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Strata behavior at fully-mechanized coal mining and solid backfilling face [PDF]
SpringerPlus, 2016 Taking Ping Dingshan Coal Mine Group 12 as an example, this paper explains the system layout, key equipment and backfilling technology in detail. It probes into the characteristic of rock strata movement behavior and surface deformation above the gob area through in-site measurement method. The results show that as the overburden strata are effectively
Yin, Wei +3 more
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Gong-kuang zidonghua, 2020 Taking transparent coal seam, transparent fully-mechanized mining equipment and transparent decision-making and control as core, concept of intelligent mining based on transparent longwall face was put forward, namely based on enhanced geological ...
WANG Feng
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