Results 31 to 40 of about 670,391 (188)
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
Yantu gongcheng xuebao, 2019 Taking the extra-thick coal seam heading face in Liuhuanggou Coal Mine as the engineering background, the energy accumulation characteristics and rockburst mechanism of the surrounding rock at heading face of extra-thick coal seam are studied using field
ZHU Si-tao 1, JIANG Fu-xing 1, WANG Xu-you 2, JIANG Yi-wu 2, NING Ting-zhou 2, SUN Shao-hua 2
doaj +1 more source
The Safety Guarantee Technology of Extra-thick Coal Seam Mining in Tashan Coal Mine [PDF]
, 2011 In recent years, a series of gas and spontaneous fire prevention technologies are summarized by Tashan coal mine of Datong Coal Mine Group CO.,LTD, which are suitable for extra-thick coal seam mining of carboniferous period through collaborative ...
Yongping, Wu
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, 2022 The change of geological conditions of coal seam roof overburden and the development of mining fissures caused by coal mining activities are the direct causes of damage to the key underground aquifers, and also the root causes of ecological environment ...
Shuangming, WANG +4 more
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Energy Exploration & Exploitation, 2017 Based on the strata, lithologic association and coal-bearing property – using the method of synthetic correlation – the relation between limestone layers and the thick coal seam of the Taiyuan Formation in Shanxi Province has been assessed in this study.
Wen Yang +5 more
doaj +1 more source
Geofluids, 2021 The stratified mining of super thick coal seam is a process of repeated disturbance of the top roof, especially in the lower stratification, the upper complex rock layer has a greater settlement space, resulting in great changes in the strata structure ...
Qin Guangpeng +4 more
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Detection technique and application of transmission in-seam wave in thin coal seam
, 2020 Aiming at the problem of serious attenuation of channel wave in thin seam and its limited distance of propagation, a method of restricted CT imaging was proposed by using the furthest in-seam wave propagation distance.
Hui, YANG
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Advances in Civil Engineering, 2020 Application of a horizontal section top-coal caving in a steeply inclined thick coal seam not only effectively resolves the problem of the large dip angle of the coal seam and slipping and dumping of mining equipment but also significantly reduces the ...
Xin Kang +3 more
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Geofluids, 2022 Rib spalling of loose thick coal wall seriously restricts the high yield, high efficiency of coal mine, affecting the safety production of coal mine. Based on the engineering background of water injection to control rib spalling of loose thick coal seam ...
Jian Sun +3 more
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Mechanism and Prevention of Rock Burst Induced by Wide Coal Pillar in Thick Hard Coal Seam
, 2020 Aiming at the phenomenon of rock burst induced by wide coal pillars in thick hard coal seam in Hujierte Mining Area, the distribution characteristics of vertical stress of wide coal pillar has been analyzed by means of field measurement and numerical ...
LIU Weijian, MA Binwen
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