Results 171 to 180 of about 5,124 (199)
SustainabilityPaste backfill mining is an significant part of green coal mining, which can improve resource utilization and extend the service life of mines. It is important for solving the “three under, one above” mining problem and avoiding industrial wastes such as
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Quarterly journal of engineering geology and hydrogeology
This paper focuses on the risk of water inrush from the old goaf water of the upper coal group to the first mining face of the lower coal group under the condition of fully mechanized caving mining.
Zhilong Yang, Shuyun Zhu, Yingzhou Chen
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This paper focuses on the risk of water inrush from the old goaf water of the upper coal group to the first mining face of the lower coal group under the condition of fully mechanized caving mining.
Zhilong Yang, Shuyun Zhu, Yingzhou Chen
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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
To analyze the feasibility of fully mechanized large mining height long wall top-coal caving mining (LLTCC) in ultra-thick (20–30 m), parting-rich coal seams, a case study on No. 6 coal seam of the Laosangou mining field was conducted.
Yazhou Zhou +4 more
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To analyze the feasibility of fully mechanized large mining height long wall top-coal caving mining (LLTCC) in ultra-thick (20–30 m), parting-rich coal seams, a case study on No. 6 coal seam of the Laosangou mining field was conducted.
Yazhou Zhou +4 more
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Applied Mechanics and Materials, 2013
Based on the great thickness of coal seam in Tashan Mine, narrow pillar mining technology was adopted to liberate more coal resources from coal pillars. In this paper, the research status of narrow pillar technology was analyzed, and the main problems of the narrow pillar mining technique were solved by theory research.
Yuan Fan +4 more
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Based on the great thickness of coal seam in Tashan Mine, narrow pillar mining technology was adopted to liberate more coal resources from coal pillars. In this paper, the research status of narrow pillar technology was analyzed, and the main problems of the narrow pillar mining technique were solved by theory research.
Yuan Fan +4 more
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Advanced Materials Research, 2011
Because of its high output，much more dust is produced in fully-mechanized Longwall mining with top-coal caving (LMTC) mining faces than in conventional mechanized mining faces without top-coal caving. Now dust control in fully-mechanized LMTC mining faces has become a key technological problem needed to be solved.
Guo Dong Zhai +2 more
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Because of its high output，much more dust is produced in fully-mechanized Longwall mining with top-coal caving (LMTC) mining faces than in conventional mechanized mining faces without top-coal caving. Now dust control in fully-mechanized LMTC mining faces has become a key technological problem needed to be solved.
Guo Dong Zhai +2 more
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Advanced Materials Research, 2011
The size of the fully mechanized caving face is optimized by theoretical analysis and the dip length of the face is determined as 260m. With the method of numerical simulation, the reasonable cutting height of the face is determined as 3.5m and the caving method is determined as one round caving in order.
Zhong Ping Guo +2 more
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The size of the fully mechanized caving face is optimized by theoretical analysis and the dip length of the face is determined as 260m. With the method of numerical simulation, the reasonable cutting height of the face is determined as 3.5m and the caving method is determined as one round caving in order.
Zhong Ping Guo +2 more
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Failure height and fracture evolution pattern of overburden rock in fully mechanized cave mining
Arabian Journal of Geosciences, 2022Xiaolei Wang, Hu Li
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Distribution law of mining stress in fully mechanized top coal caving mining of large dip seam
2022Fuyao Chu, Ruixing Xie, Deshuai Zhao
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