scholarly journals Productivity Improvement in Underground Coal Mines - A Case Study

2013 ◽  
Vol 12 (3) ◽  
pp. 48-53 ◽  
Author(s):  
Devi Prasad Mishra ◽  
Mamtesh Sugla ◽  
Prasun Singha
2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Devi Prasad Mishra ◽  
Mamtesh Sugla ◽  
Prasun Singha

Resources ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 56 ◽  
Author(s):  
Mark Dunn ◽  
Peter Reid ◽  
John Malos

Sensing for equipment location and mapping in explosion risk zones such as underground coal mines is a difficult proposition due to the regulatory requirement for certified protective enclosures to safely house the required complex electrical equipment. This paper provides a case study for the process involved in creating and implementing an optical-grade enclosure for use in these environments. The result of this process has been the creation of ExScan®, a 3D laser mapping system that is providing step-change capability for remote operations and automation in the underground coal mining industry.


Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 95
Author(s):  
Artur Dyczko ◽  
Paweł Kamiński ◽  
Jacek Jarosz ◽  
Zbigniew Rak ◽  
Dariusz Jasiulek ◽  
...  

Roof bolting is the most popular type of support for underground mines’ workings. However, in Polish coal mines it is used only as a supplementary support. To raise the effectiveness and economic score of horizontal development works, JSW (Jastrzębska Spółka Węglowa) started a project to introduce the independent rock bolting support in its mines. The key element of the project is the monitoring of mine workings supported with roof bolting, as appropriate control allows one to ensure a proper level of safety. The following work presents a monitoring system for mine working supported with roof bolting applied in the project, as well as results of the measurements obtained using this system. The aim of the monitoring was to prove that independent roof bolting provides a proper level of safety and thus is applicable in conditions of Polish underground coal mines, particularly Budryk mine. It was to be proved by the evaluation of data obtained from instrumented bolts, extensometers of different type and convergence measurements. These results allowed us to verify the validity and reliability of the roof bolting in geological and mining conditions of Silesian Coal Basin.


2018 ◽  
Vol 11 (8) ◽  
Author(s):  
Jagdeep Singh ◽  
Surjit Kumar Gandhi ◽  
Harwinder Singh ◽  
Navjot Singh

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