Results 221 to 230 of about 6,281 (245)

Optimization and Application of High Production and High Efficiency Mining Parameters of Fully Mechanized Caving Face

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, Shan Chao Hu, Zhi Gao Zhang   +2 more
openaire   +1 more source

Design and Optimization of the Exhausting-Flowing Remover in Fully-Mechanized Top-Coal Caving Mining Face

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, Zhi Feng Dong, Sheng Ming Yan   +2 more
openaire   +1 more source

Failure height and fracture evolution pattern of overburden rock in fully mechanized cave mining

Arabian Journal of Geosciences, 2022
Xiaolei Wang, Hu Li
openaire   +1 more source

Distribution law of mining stress in fully mechanized top coal caving mining of large dip seam

2022
Fuyao Chu, Ruixing Xie, Deshuai Zhao
openaire   +1 more source

Stability Mechanism and Control Technology for Fully Mechanized Caving Mining of Steeply Inclined Extra-Thick Seams with Variable Angles

Mining Metallurgy & Exploration, 2020
W. Hongwei, W. Yongping, J. Jianqiang, Cao Peipei   +3 more
semanticscholar   +1 more source

Research on the Surrounding Rock Control Technology of Gob-Side Entry with a Narrow Coal Pillar Reserved in a Fully Mechanized Caving Face with Large Mining Height

Geotechnical and Geological Engineering, 2021
Yi Wang, Ying-ming Li, Z. Yu, Hao Zhang, D. Ding   +4 more
semanticscholar   +1 more source

Predicting the Height of the Water-Conducting Fractured Zone in Fully Mechanized Top Coal Caving Longwall Mining of Very Thick Jurassic Coal Seams in Western China Based on the NNBR Model

Mine Water and the Environment, 2023
Yanbo Han, Qiqing Wang, Wenping Li, Z. Yang, Tianyu Gu, Zhenkang Wang   +5 more
semanticscholar   +1 more source

Hydraulic Fracturing Control of the Hard Roof During Horizontal Slicing Fully Mechanized Top Coal Caving Mining in Steep Thick Coal Seam

Mining Metallurgy & Exploration
Luying Shao, Bingxiang Huang, Shuliang Chen, Haoze Li, Xinglong Zhao   +4 more
semanticscholar   +1 more source

Effect of floor failure in fully mechanized caving of extra-thick coal seam in Datong Mining Area

Arabian Journal of Geosciences, 2021
Hongfei Duan, Lijuan Zhao, Yang Chen
semanticscholar   +1 more source

Boundary distribution of top-coal limit-equilibrium zone in fully mechanized caving in steeply dipping coal seams

Geomatics, Natural Hazards and Risk, 2021
Shenghu Luo
exaly