Results 91 to 100 of about 1,364 (186)
Meikuang Anquan, 2020 This paper systematically summarizes the development process of fully mechanized top coal caving technology and equipment in Yankuang Group in recent 30 years.
MENG Xiangjun, LI Mingzhong, YUE Ning, SUN Jishuang
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Research on subsidence law of overlying strata in full mining of extra-thick coal seam
Gong-kuang zidonghua, 2021 The problem of strong mine pressure during the mining of the near goaf working face in Datong coalfield is more serious than that of the first mining face. In order to study the overlying strata movement law under the full mining conditions of extra-thick coal seam, the overlying strata movement of 8202 working face in Tongxin Coal Mine is monitored ...
WANG Jun1, ZHU Weibing1, XIE Jianlin2
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Packaging Technology and Science, Volume 39, Issue 5, Page 533-572, May 2026.Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely +4 more
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Basin Research, Volume 38, Issue 3, May–June 2026.New U–Pb zircon dating shows the Rewan Group was deposited between ~250 and 233 million years ago and that sedimentation shifted across the basin through time, with earlier deposition in the foredeep and later deposition in the back bulge. Testing multiple dating approaches and grain‐selection strategies improves confidence in these age estimates and ...
Matthew Scipione +6 more
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Top coal caving mining technique in thick coal seam beneath the earth dam
, 2017 It is important to study the mining technology under structures for raising the coal resources recovery ratio. Based on the geological and mining conditions, the top coal caving harmonic mining technique in thick coal seam beneath the earth dam was put ...
Yi Tan, Wenbing Guo, Erhu Bai
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Disaster mechanism and collaborative control technology of multi-field coupling in extra-thick coal seam with hard roof [PDF]
Addressing the coupled challenges of strong mine pressure and gas, induced by large-span fracture of the hard roof during the mining of thick coal seams, a systematic understanding of the disaster mechanism through multi-field coupling of the hard roof ...
Xiting WANG +6 more
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Study on the Failure Characteristics of Coal Wall Spalling in Thick Coal Seam with Gangue
, 2020 Coal wall spalling is one of the main factors restricting the safe and efficient mining of thick coal seam, and the gangue has an important impact on the coal wall spalling.
Feng Du +3 more
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Gas emission law and control method of working face in extra thick coal seam
IOP Conference Series: Earth and Environmental Science, 2021 Abstract Aiming at the problem of abnormal gas emission in fully mechanized caving face during mining, the law of gas emission from coal and rock in front of working face is studied, and the main factors of gas emission from coal wall and goaf are analyzed.
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Precursory characteristics and disaster prevention of rock burst in roadway excavation in steeply inclined extra-thick coal seam [PDF]
With the gradual coal mining of deep rock burst mine, the impact accompanying roadway excavation becomes more and more intense. Aiming at the problem of effective prevention and control of rock burst in roadway excavation, taking the steep seam mine in ...
Suilin ZHANG +8 more
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矿业科学学报, 2019 Water and sand inrush is one of the principal factors that restrict safe and effective production of mining under water body.The threat to soft strata mines with extremely thick coal seam is especially more serious.Caving zone and fissure zone(joint name
Zhang Bin +3 more
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