In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine
Abstract The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ experimental campaign and modelling of hydro-cutting technology application. The proposed innovative technology was tested in terms of the effects of...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-01-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-28501-7 |
| _version_ | 1797945937938612224 |
|---|---|
| author | Józef Dubiński Bartłomiej Jura Janusz Makówka Tomasz Janoszek Jacek Skiba Robert Hildebandt Adam Duda Natalia Howaniec Adam Smoliński |
| author_facet | Józef Dubiński Bartłomiej Jura Janusz Makówka Tomasz Janoszek Jacek Skiba Robert Hildebandt Adam Duda Natalia Howaniec Adam Smoliński |
| author_sort | Józef Dubiński |
| collection | DOAJ |
| description | Abstract The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ experimental campaign and modelling of hydro-cutting technology application. The proposed innovative technology was tested in terms of the effects of the distance between the outlet of water from the nozzle and a sidewall, pressure of the water jet, as well as the type of a nozzle on hydro-mining effectiveness. The hydro-cutting tests of coal seam performed in the Experimental Mine “Barbara” in Poland proved that the increase in water pressure in the range 20–40 MPa only slightly affects the coal face structure, while high pressure, of 80–100 MPa, has a significant impact on a coal face structure. The experimental results also showed the major effects of operating time as well as the distance of the water jet on the effectiveness of coal face mining. |
| first_indexed | 2024-04-10T21:02:56Z |
| format | Article |
| id | doaj.art-3b74f261522c48099ad72ab3bd01e558 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-10T21:02:56Z |
| publishDate | 2023-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-3b74f261522c48099ad72ab3bd01e5582023-01-22T12:10:39ZengNature PortfolioScientific Reports2045-23222023-01-0113111710.1038/s41598-023-28501-7In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mineJózef Dubiński0Bartłomiej Jura1Janusz Makówka2Tomasz Janoszek3Jacek Skiba4Robert Hildebandt5Adam Duda6Natalia Howaniec7Adam Smoliński8Department of Geology and Geophysics, Central Mining InstituteDepartment of Mining Aerology, Central Mining InstituteDepartment of Extraction Technologies, Rockburst and Mining Support, Central Mining InstituteDepartment of Extraction Technologies, Rockburst and Mining Support, Central Mining InstituteDepartment of Mining Aerology, Central Mining InstituteDepartment of Underground Research and Surface Maintenance, Central Mining InstituteDepartment of Risk Assessment and Industrial Safety, Central Mining InstituteDepartment of Energy Saving and Air Protection, Central Mining InstituteCentral Mining InstituteAbstract The hydro-mining technology is considered as a promising method of bituminous coal excavation. The paper presents the results of the in-situ experimental campaign and modelling of hydro-cutting technology application. The proposed innovative technology was tested in terms of the effects of the distance between the outlet of water from the nozzle and a sidewall, pressure of the water jet, as well as the type of a nozzle on hydro-mining effectiveness. The hydro-cutting tests of coal seam performed in the Experimental Mine “Barbara” in Poland proved that the increase in water pressure in the range 20–40 MPa only slightly affects the coal face structure, while high pressure, of 80–100 MPa, has a significant impact on a coal face structure. The experimental results also showed the major effects of operating time as well as the distance of the water jet on the effectiveness of coal face mining.https://doi.org/10.1038/s41598-023-28501-7 |
| spellingShingle | Józef Dubiński Bartłomiej Jura Janusz Makówka Tomasz Janoszek Jacek Skiba Robert Hildebandt Adam Duda Natalia Howaniec Adam Smoliński In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine Scientific Reports |
| title | In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine |
| title_full | In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine |
| title_fullStr | In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine |
| title_full_unstemmed | In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine |
| title_short | In-situ experimental study on hydro-borehole technology application to improve the hard coal excavating techniques in coal mine |
| title_sort | in situ experimental study on hydro borehole technology application to improve the hard coal excavating techniques in coal mine |
| url | https://doi.org/10.1038/s41598-023-28501-7 |
| work_keys_str_mv | AT jozefdubinski insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT bartłomiejjura insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT januszmakowka insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT tomaszjanoszek insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT jacekskiba insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT roberthildebandt insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT adamduda insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT nataliahowaniec insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine AT adamsmolinski insituexperimentalstudyonhydroboreholetechnologyapplicationtoimprovethehardcoalexcavatingtechniquesincoalmine |