Results 71 to 80 of about 843,741 (156)
International Journal of Mining Science and TechnologyCoal wall stability is a critical factor influencing coal mining efficiency and threatens the safety of working faces, where irregular coal wall surfaces significantly affect the contact and support effectiveness of the support plate, thereby impacting ...
Jiachen Wang +4 more
doaj +1 more source
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.To address the challenges of surrounding rock control caused by complex stress sources and intense ground pressure in gob‐side entry driving (GED) with narrow coal pillars under extra‐thick coal seams, this study takes the 10 m‐thick coal seam 8204 panel of Tashan Coal Mine as the engineering background.
Dongjie Jiang +6 more
wiley +1 more source
Optimization of Caving Technology in an Extrathick Seam with Longwall Top Coal Caving Mining
, 2021 The optimization of top coal caving technology is an efficient method to improve the recovery ratio in longwall top coal caving (LTCC). In extrathick coal seams, the conventional single-opening sequential caving technology (SOSCT) shows the following ...
Lianghui Li, Liu Yang, Weijie Wei
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, 2019 With mining technology and mechanization degree being improving, fully mechanized caving mining technology (FCM) has become a main method for thick coal seam extraction in China.
Lei Li +6 more
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Meitan xuebaoThe main task of image-based intelligent control of caving door in longwall top coal caving face is to monitor the rock mixed ratio of coal flow by analyzing the image, and then determine the closing time of caving door.
Jiachen WANG +5 more
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SIMULATION STUDY ON CAVING PROCESS OF CAVING COAL HYDRAULIC SUPPORTS BASED ON EDEM
, 2019 In order to study the caving process of caving coal hydraulic support and the breaking law between immediate roof and basic roof,Taking the ZF15000/28/52 export caving hydraulic support as the research object, establish a three-dimensional simulation ...
LIU XinYan +4 more
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Stress analysis of longwall top coal caving
, 2010 Longwall top coal caving (LTCC) is a relatively new method of mining thick coal seams that is currently achieving high productivity and efficiency in application, particularly in China.
Poulsen, Brett A., Alehossein, Habib
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Automatic control system of top coal caving on fully-mechanized coal mining face
, 2015 In view of problems of large randomness, low efficiency of coal caving of artificial operation for top coal caving mining face, an automatic control system of top coal caving on fully-mechanized coal mining face was designed.
WEI Wenya
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, 2018 Recognition of coal and gangue (roof rock) is a key technology to realize fully mechanized top coal caving automated mining. This paper proposes to detect the instantaneous refuse content of drawn coal and gangue mixture during top coal caving by using ...
Changyou Liu (1919344) +1 more
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Ten-year development and practice of coal mine intelligentization technology in China
Meitan kexue jishuThe intelligent construction of coal mines is in line with technological revolution and industrial transformation, and the deep integration and application of new generation information technology and coal development and utilization technology is an ...
Jingdao FAN +7 more
doaj +1 more source