Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
The bucket-wheel dredge “Kovin I” for underwater coal mining with bucket-wheel type UCW-450 has been in operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Minerals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-163X/11/6/564 |
| _version_ | 1797532679840727040 |
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| author | Vladimir Čebašek Veljko Rupar Stevan Đenadić Filip Miletić |
| author_facet | Vladimir Čebašek Veljko Rupar Stevan Đenadić Filip Miletić |
| author_sort | Vladimir Čebašek |
| collection | DOAJ |
| description | The bucket-wheel dredge “Kovin I” for underwater coal mining with bucket-wheel type UCW-450 has been in operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the gearbox. However, the selection and construction of the excavator parts were performed on the ground of available laboratory data for digging resistance. The data itself was determined by the testing methodology that did not include the influence of surrounding water pressure at a certain depth of mining. According to the previous findings, it was necessary to develop a specific research and testing program that would involve appropriate laboratory testing of the geomechanical parameters. These were to represent the influence of hydrostatic water pressure on the working environment—coal. Nevertheless, geomechanical laboratory research tests were initially modified to provide reliable data of cutting resistance, especially in the water under different hydrostatic pressures, fully simulating the “in situ” working conditions of mining, i.e., cutting. |
| first_indexed | 2024-03-10T11:02:44Z |
| format | Article |
| id | doaj.art-af02930df47f46a4abb7a5ab857e0a60 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T11:02:44Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-af02930df47f46a4abb7a5ab857e0a602023-11-21T21:22:32ZengMDPI AGMinerals2075-163X2021-05-0111656410.3390/min11060564Cutting Resistance Laboratory Testing Methodology for Underwater Coal MiningVladimir Čebašek0Veljko Rupar1Stevan Đenadić2Filip Miletić3Mining and Geology Faculty, University of Belgrade, Djusina 7, 11000 Belgrade, SerbiaMining and Geology Faculty, University of Belgrade, Djusina 7, 11000 Belgrade, SerbiaMining and Geology Faculty, University of Belgrade, Djusina 7, 11000 Belgrade, SerbiaMining and Geology Faculty, University of Belgrade, Djusina 7, 11000 Belgrade, SerbiaThe bucket-wheel dredge “Kovin I” for underwater coal mining with bucket-wheel type UCW-450 has been in operation for over 20 years. Based on analyzing the bucket-wheel dredger performance, productivity, maintenance costs, and reliability, a rational decision was made: to rehabilitate the most essential parts of the dredge, including the bucket wheel and the gearbox. However, the selection and construction of the excavator parts were performed on the ground of available laboratory data for digging resistance. The data itself was determined by the testing methodology that did not include the influence of surrounding water pressure at a certain depth of mining. According to the previous findings, it was necessary to develop a specific research and testing program that would involve appropriate laboratory testing of the geomechanical parameters. These were to represent the influence of hydrostatic water pressure on the working environment—coal. Nevertheless, geomechanical laboratory research tests were initially modified to provide reliable data of cutting resistance, especially in the water under different hydrostatic pressures, fully simulating the “in situ” working conditions of mining, i.e., cutting.https://www.mdpi.com/2075-163X/11/6/564cutting resistanceunderwater miningcoal |
| spellingShingle | Vladimir Čebašek Veljko Rupar Stevan Đenadić Filip Miletić Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining Minerals cutting resistance underwater mining coal |
| title | Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining |
| title_full | Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining |
| title_fullStr | Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining |
| title_full_unstemmed | Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining |
| title_short | Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining |
| title_sort | cutting resistance laboratory testing methodology for underwater coal mining |
| topic | cutting resistance underwater mining coal |
| url | https://www.mdpi.com/2075-163X/11/6/564 |
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