Development of the technology of stowing the developed space during mining
An analysis of the world experience in the development of potash deposits shows that the main problems arising during their development are a high level of mineral losses, an increased risk of flooding of mine workings as a result of water-proof layer discontinuance and the development of emergency...
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2022-07-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/14895?setLocale=en_US |
| _version_ | 1797947239727890432 |
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| author | Evgenii R. Kovalskii Kirill V. Gromtsev |
| author_facet | Evgenii R. Kovalskii Kirill V. Gromtsev |
| author_sort | Evgenii R. Kovalskii |
| collection | DOAJ |
| description | An analysis of the world experience in the development of potash deposits shows that the main problems arising during their development are a high level of mineral losses, an increased risk of flooding of mine workings as a result of water-proof layer discontinuance and the development of emergency water inflows in the mined-out spaces. Reduction of potash ore losses can be achieved by using a long-pillar mining system, but this method is limited by the peculiarities of the geological structure of the potash deposits and the need to preserve the continuity of the water-proof layer during its underworking. The safety of underworking of the water-proof layer can be improved by using the stowing of the developed longwall space. However, the question of the influence of the stowing on the height of the zone of water supply cracks development remains little-studied. The world experience of stowing the developed spaces in the development of layers with long pillars is analyzed and the technology of placing the stowing masses, which can solve these problems, is proposed. The considered technology and the proposed solutions are supported by laboratory tests of stowing materials and mathematical modeling of deformation zones in the overlying rocks. |
| first_indexed | 2024-04-10T21:24:38Z |
| format | Article |
| id | doaj.art-159fdb49dcd949bd8d07ef92f6f98122 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:24:38Z |
| publishDate | 2022-07-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-159fdb49dcd949bd8d07ef92f6f981222023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-07-0125420220910.31897/PMI.2022.3614895Development of the technology of stowing the developed space during miningEvgenii R. Kovalskii0https://orcid.org/0000-0002-6656-9377Kirill V. Gromtsev1https://orcid.org/0000-0003-3687-2073Saint Petersburg Mining UniversitySaint Petersburg Mining UniversityAn analysis of the world experience in the development of potash deposits shows that the main problems arising during their development are a high level of mineral losses, an increased risk of flooding of mine workings as a result of water-proof layer discontinuance and the development of emergency water inflows in the mined-out spaces. Reduction of potash ore losses can be achieved by using a long-pillar mining system, but this method is limited by the peculiarities of the geological structure of the potash deposits and the need to preserve the continuity of the water-proof layer during its underworking. The safety of underworking of the water-proof layer can be improved by using the stowing of the developed longwall space. However, the question of the influence of the stowing on the height of the zone of water supply cracks development remains little-studied. The world experience of stowing the developed spaces in the development of layers with long pillars is analyzed and the technology of placing the stowing masses, which can solve these problems, is proposed. The considered technology and the proposed solutions are supported by laboratory tests of stowing materials and mathematical modeling of deformation zones in the overlying rocks.https://pmi.spmi.ru/index.php/pmi/article/view/14895?setLocale=en_USlong facesstowing masshydraulic stowingwater-proof layerpotash-magnesium seams |
| spellingShingle | Evgenii R. Kovalskii Kirill V. Gromtsev Development of the technology of stowing the developed space during mining Записки Горного института long faces stowing mass hydraulic stowing water-proof layer potash-magnesium seams |
| title | Development of the technology of stowing the developed space during mining |
| title_full | Development of the technology of stowing the developed space during mining |
| title_fullStr | Development of the technology of stowing the developed space during mining |
| title_full_unstemmed | Development of the technology of stowing the developed space during mining |
| title_short | Development of the technology of stowing the developed space during mining |
| title_sort | development of the technology of stowing the developed space during mining |
| topic | long faces stowing mass hydraulic stowing water-proof layer potash-magnesium seams |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/14895?setLocale=en_US |
| work_keys_str_mv | AT evgeniirkovalskii developmentofthetechnologyofstowingthedevelopedspaceduringmining AT kirillvgromtsev developmentofthetechnologyofstowingthedevelopedspaceduringmining |