Development and Application of Measurement and Control Systems in Coal Mines

Marjanovic, Dobrivoje; Grozdanović, Miroljub; Janaćković, Goran; Marjanovic, Jasmina

doi:10.1177/0020294015615893

Cited by 2 publications

(3 citation statements)

References 24 publications

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“…44 During this research significant amount of data was gathered which will be used for implementing specific solution for improving operators efficiency in CMCR. 37,42,43,[50][51][52][53]…”

Section: Discussionmentioning

confidence: 99%

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Analysis of operator’s activity in control rooms of underground coal mines

Grozdanović

Marjanovic

Ilic

2023

Measurement and Control

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The analysis for estimating operator’s activity and quantity of information in control rooms of underground coal mines is presented in this paper. Monitoring of operators in control rooms was conducted in mines Rembas, Soko, Ibar, Jasenovac and Stavalj. The network models are used during the analysis of operator’s activity in control rooms. The result of the analysis is proposed critical path network model. The application of network models improves the quality and level of research, making it more efficient. Most of the analysed information are related to normal and alarm state data received from the mine shaft and operator’s response to this data. Results are given according to actual scope of work depending on the work dynamics in underground coal mines, via histogram of changes in average number of activities per 1 h for 24-h period, then number of operator’s activities per work hour and insight into the global view of technological process in the coal mine with focus on the work scope of mine workers. Analysis of operator’s activities presented in this paper determines the relations between devices in control rooms and operators’ capabilities in order to get better ergonomic design of control rooms.

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“…44 During this research significant amount of data was gathered which will be used for implementing specific solution for improving operators efficiency in CMCR. 37,42,43,[50][51][52][53]…”

Section: Discussionmentioning

confidence: 99%

“…The analysis and description of the functionality of the measuring instruments found in coal mine pits 42,43 contributes to a better understanding of the operators' activities when they respond to the information they receive from those instruments.…”

Section: Methodsmentioning

confidence: 99%

Analysis of operator’s activity in control rooms of underground coal mines

Grozdanović

Marjanovic

Ilic

2023

Measurement and Control

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“…A large amount of fly-ash occupies land, pollutes environment, and endangers human health. 1,2 It raised a hot topic how to treat and re-utilize fly-ash. In recent years, the fly-ash is produced into ceramsite and then utilized in other industries, which is regarded as an important means of “turning waste into treasure.” Using fly-ash to instead of part or all of pebble in concrete has drawn widespread concern.…”

Section: Introductionmentioning

confidence: 99%

Experiment and application of ceramsite concrete used to maintain roadway in coal mine

Chen

Hui

Hong-wei

et al. 2020

Measurement and Control

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This paper presents a scientific basis and reference for the application of ceramsite concrete in underground coal mines. Taking fly-ash ceramsite as raw material, a variety of mix proportions of C20 ceramsite concrete were proposed by changing the sand rate of concrete. The results showed that: (1) fly-ash ceramsite has different water absorption performance with different particle sizes. The water absorption stopped after soaked for 48 h. So, the ceramsite should be soaked for more than 48 h to prevent the cement from hydrating insufficient which affects the mechanical properties of the concrete. (2) Seven mix proportions of C20 ceramsite concrete were designed by changing the ceramsite proportion. The ceramsite proportion of 43% was determined as optimal scheme whose 28-day strength was 29.60 MPa and elastic modulus was 12.45 GPa. (3) The optimal scheme was applied and verified in the field. The early strength of ceramsite concrete promotes quickly, 3-day strength was 16.8 MPa, and the 28-day strength was 29.9 MPa. Compared with ordinary pebble concrete, ceramsite concrete can provide faster, higher strength support to the roadway. Meanwhile, ceramsite concrete have properties of lightweight, and its application will bring economic and social benefits.

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Development and Application of Measurement and Control Systems in Coal Mines

Cited by 2 publications

References 24 publications

Analysis of operator’s activity in control rooms of underground coal mines

Analysis of operator’s activity in control rooms of underground coal mines

Experiment and application of ceramsite concrete used to maintain roadway in coal mine

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