Evaluation of Rock Bolt Support for Polish Hard Rock Mines
The article presents different types of rock bolt support used in Polish ore mining. Individual point resin and expansion rock bolt support were characterized. The roof classes for zinc and lead and copper ore mines were presented. Furthermore, in the article laboratory tests of point resin rock bol...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2018-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://doi.org/10.1051/e3sconf/20183501006 |
| _version_ | 1818615724980043776 |
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| author | Skrzypkowski Krzysztof |
| author_facet | Skrzypkowski Krzysztof |
| author_sort | Skrzypkowski Krzysztof |
| collection | DOAJ |
| description | The article presents different types of rock bolt support used in Polish ore mining. Individual point resin and expansion rock bolt support were characterized. The roof classes for zinc and lead and copper ore mines were presented. Furthermore, in the article laboratory tests of point resin rock bolt support in a geometric scale of 1:1 with minimal fixing length of 0.6 m were made. Static testing of point resin rock bolt support were carried out on a laboratory test facility of Department of Underground Mining which simulate mine conditions for Polish ore and hard coal mining. Laboratory tests of point resin bolts were carried out, especially for the ZGH Bolesław, zinc and lead “Olkusz – Pomorzany” mine. The primary aim of the research was to check whether at the anchoring point length of 0.6 m by means of one and a half resin cartridge, the type bolt “Olkusz – 20A” is able to overcome the load.The second purpose of the study was to obtain load – displacement characteristic with determination of the elastic and plastic range of the bolt. For the best simulation of mine conditions the station steel cylinders with an external diameter of 0.1 m and a length of 0.6 m with a core of rock from the roof of the underground excavations were used. |
| first_indexed | 2024-12-16T16:38:28Z |
| format | Article |
| id | doaj.art-c59a2b79499b4b3c97469cbf55bed02c |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-16T16:38:28Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-c59a2b79499b4b3c97469cbf55bed02c2022-12-21T22:24:23ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01350100610.1051/e3sconf/20183501006e3sconf_polviet2018_01006Evaluation of Rock Bolt Support for Polish Hard Rock MinesSkrzypkowski KrzysztofThe article presents different types of rock bolt support used in Polish ore mining. Individual point resin and expansion rock bolt support were characterized. The roof classes for zinc and lead and copper ore mines were presented. Furthermore, in the article laboratory tests of point resin rock bolt support in a geometric scale of 1:1 with minimal fixing length of 0.6 m were made. Static testing of point resin rock bolt support were carried out on a laboratory test facility of Department of Underground Mining which simulate mine conditions for Polish ore and hard coal mining. Laboratory tests of point resin bolts were carried out, especially for the ZGH Bolesław, zinc and lead “Olkusz – Pomorzany” mine. The primary aim of the research was to check whether at the anchoring point length of 0.6 m by means of one and a half resin cartridge, the type bolt “Olkusz – 20A” is able to overcome the load.The second purpose of the study was to obtain load – displacement characteristic with determination of the elastic and plastic range of the bolt. For the best simulation of mine conditions the station steel cylinders with an external diameter of 0.1 m and a length of 0.6 m with a core of rock from the roof of the underground excavations were used.https://doi.org/10.1051/e3sconf/20183501006point resin rock bolt supportroof classore mining |
| spellingShingle | Skrzypkowski Krzysztof Evaluation of Rock Bolt Support for Polish Hard Rock Mines E3S Web of Conferences point resin rock bolt support roof class ore mining |
| title | Evaluation of Rock Bolt Support for Polish Hard Rock Mines |
| title_full | Evaluation of Rock Bolt Support for Polish Hard Rock Mines |
| title_fullStr | Evaluation of Rock Bolt Support for Polish Hard Rock Mines |
| title_full_unstemmed | Evaluation of Rock Bolt Support for Polish Hard Rock Mines |
| title_short | Evaluation of Rock Bolt Support for Polish Hard Rock Mines |
| title_sort | evaluation of rock bolt support for polish hard rock mines |
| topic | point resin rock bolt support roof class ore mining |
| url | https://doi.org/10.1051/e3sconf/20183501006 |
| work_keys_str_mv | AT skrzypkowskikrzysztof evaluationofrockboltsupportforpolishhardrockmines |