scholarly journals Distribution characteristics analysis of pressure-arch in horizontal stratified rocks under coal mining conditions

2015 ◽  
Vol 22 (4) ◽  
pp. 997-1004 ◽  
Author(s):  
Shu-ren Wang
Keyword(s):  
Coal Mining ◽  
Distribution Characteristics ◽  
Mining Conditions ◽  
Characteristics Analysis

Mining Project Design under Villages and Comparison Analysis of Mining Method

2013 ◽  
Vol 734-737 ◽  
pp. 768-772
Author(s):  
Gui Liu ◽  
Nai Zhong Xu ◽  
Chao Gao ◽  
Lei Li
Keyword(s):  
Coal Mining ◽  
Comprehensive Analysis ◽  
Project Design ◽  
Strip Mining ◽  
Mining Method ◽  
Comparison Analysis ◽  
Continuous Miner ◽  
Mining Project ◽  
Mining Conditions ◽  
Mining Width

In order to solve the problem of coal mining under villages of regions of Yaoqiao Mine, through comprehensive analysis, the author considers that strip mining has feasibility in realistic, meanwhile, a series of mining width and retaining width was studied for strip mining and eventually a mining project was put forward to meet the unique conditions. By comparing application conditions and range of application between continuous miner used in strip type of Wongawilli coal mining method and shortwall shearer mining method, the author analyzes the economic benefit and draws a conclusion that shortwall shearer mining method has better applicability. Those all provide a new way to mining under villages in Yaoqiao Mine and the conclusion can also be used for reference in similar mining conditions.

scholarly journals Long-term Analysis of the Effects of Production Management in Coal Mining in Poland

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3146 ◽  
Author(s):  
Izabela Jonek-Kowalska
Keyword(s):  
Coal Mining ◽  
Production Management ◽  
Coal Mines ◽  
Work Productivity ◽  
Policy Implications ◽  
Productivity Improvement ◽  
Mining Conditions ◽  
The Stability ◽  
Efficiency And Productivity

The primary aim of this article is to examine financial efficiency and work productivity, as well as their determinants, in selected Polish coal mines in 1998–2015. To achieve this goal, after introducing a justification for the choice of subject and the literature studies, the research methodology is presented, and research results are subsequently described and analyzed. Next, based on the main conclusions, model regularities and policy implications regarding efficiency and productivity improvement in Polish coal mining enterprises are established. The research for this study was conducted in five Polish coal mines, which were chosen on the basis of criteria aimed at ensuring the results’ comparability and the stability of organizational and mining conditions in the analyzed research period.

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