Results 1 to 10 of about 6,226 (173)

Research on an Intelligent Mining Complete System of a Fully Mechanized Mining Face in Thin Coal Seam

Sensors, 2023
The mining environment of thin coal seam working faces is generally harsh, the labor intensity is high, and the production efficiency is low. Previous studies have shown that thin coal seam mining finds it difficult to follow machines, does not have ...
Bo Ren, Ke Ding, Lianguo Wang, Shuai Wang, Chongyang Jiang, Jiaxing Guo   +5 more
doaj   +4 more sources

Characteristics of overburden failure and evolution of fractures in fully mechanized top coal mining face. [PDF]

Sci Rep
The characteristics of overlying strata failure and the evolution law of fractures during coal mining are of great significance for mine water prevention and gas control.
Wang X, Liu F.
europepmc   +2 more sources

Movement Laws of Overlying Strata above a Fully Mechanized Coal Mining Face Backfilled with Gangue: A Case Study in Jiulishan Coal Mine in Henan Province, China

Advances in Civil Engineering, 2021
The aim of this study is to obtain movement laws of overlying strata above a fully mechanized coal mining face backfilled with gangue and solve the problem of surface subsidence during coal mining.
Zhengkai Yang, Zhiheng Cheng, Zhenhua Li, Chunyuan Li, Lei Wang, Shuaifeng Yin, Jinhu Zhang   +6 more
doaj   +2 more sources

Study on the Partial Paste Backfill Mining Method in a Fully Mechanized Top-Coal Caving Face: Case Study from a Coal Mine, China

Sustainability
Paste 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
Zhaowen Du, Xue-long Li, Deyou Chen
exaly   +2 more sources

CFD modeling of coal dust migration in an 8.8-meter-high fully mechanized mining face

Energy, 2020
The largest mining height of the fully mechanized mining face in the world is currently 8.8 m. A working face of this size has various problems, including the production of large amounts of dust, complicated dust migration laws, and difficulty in ...
Wen Nie, Dawei Chen, Qiang Liu
exaly   +2 more sources

Distribution Law of Abutment Pressure and Support Technology in the Roadway of Repeated Mining in the Fully Mechanized Top Coal Caving Mining Face

Advances in Civil Engineering
Due to repeated mining in the 130203 fully mechanized top coal caving mining face of the coal mine, the severe mining pressure phenomenon occurs in the return airway.
Junmeng Li, Yuxin Ren, Guiyuan Wang
exaly   +2 more sources

Numerical and in-situ investigation on the ground behavior of the end roof in fully mechanized caving face [PDF]

E3S Web of Conferences, 2021
Fully mechanized top coal caving is a major high-yield and high-efficiency coal mining method for thick seam mining. At present, it is affected by the further popularization and application of fully mechanized caving mining because the recovery rate is ...
Zang Chuanwei, Chen Miao, Chen Yang, Zhuang Xuean, Zhai Chenming, Zhu Hongmo   +5 more
doaj   +1 more source

A Virtual Reality Collaborative Planning Simulator and Its Method for Three Machines in a Fully Mechanized Coal Mining Face

Arabian Journal for Science and Engineering, 2018
Xuewen Wang, Zhaojian Yang, Juanli Li
exaly   +2 more sources

Study on overburden movement law and ground pressure behavior in fully mechanized top coal caving face under the disturbance of upper coal seam

Meikuang Anquan, 2023
In recent years, most of the coal mines in Zhungeer Coalfield have entered the mining of the second main coal seams, such as 6#, 10# and 11#, with an average thickness of more than 10 m, so most of the coal mines use fully mechanized caving mining ...
Hua NAN, Zhuoying WANG
doaj   +1 more source

Study on the Mine Pressure Law and the Pressure Frame Mechanism of an Overlying Goaf in a Shallow Coal Seam

Shock and Vibration, 2021
To study the problems of dynamic load pressure and frame pressure caused by the concentration of stress by coal extraction pillars during the mechanized short-distance mining of goaves in shallow coal seams, a frame pressure accident, in the Shendong ...
Haifeng Zhou, Qingxiang Huang, Yingjie Liu, Yanpeng He   +3 more
doaj   +1 more source