Results 61 to 70 of about 2,129 (172)
Англійська мова для навчання і работи. Навчальний посібник з англійської мови за професійним спрямуванням для студентів і фахівців галузі знань 0503 Розробка корисних копалин Т 1 [PDF]
, 2010 A coursebook includes all the activities of students’ work at ESP course aimed at development of language behaviour necessary for effective communication of students in their study and specialism areas.
Зуєнок, І.І. +3 more
core
An investigation into gas emission and outburst control in thick seam coal mining [PDF]
, 2016 Nowadays, coal mining is extending to deeper and deeper levels, facing ever increasing coal seam gas contents, much higher gas emissions and outburst risks. Capturing coal seam gas before it migrates into atmosphere has been seen as an effective approach
Si, Guangyao
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Advances in Civil Engineering, Volume 2026, Issue 1, 2026.Directional long horizontal drilling hydraulic fracturing technology (DLHDHF) can prevent and control the occurrence of rock burst disasters by controlling the hard roof in the near field. Therefore, it is exceedingly significant to enhance the pressure relief effect by determining the appropriate fracturing scheme. Taking Number 140202 working face of
Shang Du +8 more
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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
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Advances in Civil Engineering, Volume 2026, Issue 1, 2026.The issue of high geothermal temperatures in deep underground engineering has become increasingly prominent, posing severe threats to safe construction, operation, and maintenance. Employing a bibliometric approach, this study first analyzes the definition, causes, and disaster‐affected objects of high geothermal temperatures.
Wei Chen +9 more
wiley +1 more source
UA8/3/1 Information Technology - WKU Public Radio [PDF]
, 2010 Records created by and about WKU Public ...
WKU Archives
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THE DEVELOPMENT OF A NOVEL MODEL FOR MINING METHOD SELECTION IN A FUZZY ENVIRONMENT; CASE STUDY: TAZAREH COAL MINE, SEMNAN PROVINCE, IRAN [PDF]
, 2018 Odabir rudarske metode za bilo koju mineralnu sirovinu najvažniji je korak kod započinjanja i održavanja uspješnoga rudarenja. S obzirom na velike troškove i utjecaj na okoliš odabranu rudarsku metodu pridobivanja obično je nemoguće promijeniti kada ...
Fatemeh Asadi Ooriad +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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Meikuang Anquan, 2020 Majialiang Coal Industry Company adopts the intelligent permanent magnet direct drive system in No.14208 fully mechanized caving face in view of the characteristics of long conveying distance and large volume of belt conveyor.
MA Pengfei, HUANG Zhidong
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Geofluids, Volume 2026, Issue 1, 2026.Water inrush poses a serious threat to the safety and sustainability of coal mining operations, particularly in arid–semiarid regions where confined aquifers overlie coal seams. Therefore, an accurate assessment of roof water inrush risk is essential to prevent water hazards on the roof.
Sen Xue +7 more
wiley +1 more source