Research on bending-slip rib spalling and rib stability of extra-thick hard coal wall [PDF]
Scientific ReportsIn response to the frequent occurrence of coal face spalling affecting the working face production during the mining of extra-thick hard coal seams, this study investigates the characteristics of typical hard coal face damage.
Bo Xue +4 more
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Numerical simulation on fracturing behaviour of hard roofs at different levels during extra-thick coal seam mining [PDF]
Royal Society Open Science, 2020 Rui Gao, Hongchun Xia
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Key technology and equipment for fully mechanized mining with extra-large shearing height of 10 m in extra-thick coal seam [PDF]
Meitan xuebaoFully mechanized mining technology with extra-large shearing height is the optimal technical approach to achieve high-yield, high-efficiency and high-recovery mining for 6−10 m ultra-thick coal seam in Chinese coal mines.
Hongpu KANG +17 more
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Strata behavior in extra-thick coal seam mining with upward slicing backfilling technology
International Journal of Mining Science and Technology, 2016 Abstract Based on the character of upward slicing backfilling mining and the condition of Gonggeyingzi coal mine in Inner Mongolia, this paper describes the studies of the strata behavior and the stress distribution in the process of backfilling mining in extra-thick coal seams.
Xuejie Deng, Xiaole Han
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Disaster-inducing mechanism of the movement of high-position combination cantilever plate structures in non-uniform and extra-thick coal seam mining [PDF]
Gong-kuang zidonghuaThe mining of non-uniform and extra-thick coal seams significantly affects the roof breaking structure in the mining field, which greatly impacts the mining pressure behavior in the working face.
ZHU Weibing +5 more
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Analysis of Ground Behavior Regularity of Fully Mechanized Face with Extra Thick Coal Seam
Gong-kuang zidonghua, 2011 The paper used methods of field strata control observation and RFPA numerical simulation to analyze and study ground behavior regularity of fully mechanized face with extra thick coal seam of easy spontaneous combustion in Gengcun Coal Mine.
REN Yong-kang, LI Bao-fu, WANG Fu-li
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Study on the linkage mechanism between key strata fracture in overburden and surface subsidence during caving mining in extra-thick coal seams [PDF]
Scientific ReportsCaving mining in extra-thick coal seams induces large-scale overburden movement, leading to more intense fracture processes in key strata, more significant surface subsidence, and frequent dynamic disasters in mines.
Tianwei Lan +5 more
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Numerical Investigation on the Ground Response of a Gob‐Side Entry in an Extra‐Thick Coal Seam [PDF]
Shock and Vibration, 2021 This study was aimed at the large deformation phenomenon of rock mass surrounding the gob‐side entry driven in a 20 m extra‐thick coal seam. Taking tailgate 8211 as the engineering background, a numerical investigation was employed to analyze the deformation law of the gob‐side entry. The study results are as follows. (1) Because the immediate roof was
C.W. Zang +5 more
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Meitan kexue jishu, 2023 The mining of extremely thick coal seam form a large space stope, the fracture disturbance of hard roof spreads to a wide range, the working face weighting has the characteristic of “strong mine pressure”, it is obviously different from rock burst ...
YU Bin +3 more
doaj +1 more source
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +2 more sources