Assessment of parting rock weak zones under the joint and downward mining of coal seams
The aim of the forecasting effort is to identify troublesome zones of stability loss by a parting lengthwise of the extraction panel under the joint and downward mining of coal seams. Analyses have been carried out of active stress component curves for a 3-D model computational experiment compared w...
| Main Authors: | , , , , |
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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/20186603001 |
| _version_ | 1819157828890263552 |
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| author | Bondarenko Volodymyr Kovalevska Iryna Symanovych Hennadii Barabash Mykhailo Snihur Vasyl |
| author_facet | Bondarenko Volodymyr Kovalevska Iryna Symanovych Hennadii Barabash Mykhailo Snihur Vasyl |
| author_sort | Bondarenko Volodymyr |
| collection | DOAJ |
| description | The aim of the forecasting effort is to identify troublesome zones of stability loss by a parting lengthwise of the extraction panel under the joint and downward mining of coal seams. Analyses have been carried out of active stress component curves for a 3-D model computational experiment compared with the strength characteristic of each lithotype of a parting. An algorithm has been developed for the stability assessment of a parting lengthwise along the extraction panel. The relationship patterns have been estimated between the sizes of the parting rocks discontinuity zones and the main geomechanical parameters. A scientifically grounded basis has been created for the detection of the parting rock weak zones lengthwise along the extraction panel for the calculation of the mounting and security systems of the development works. A complex of underground instrumental observations was made, which was used to set up a correspondence of patterns to indicate the variation in rock pressure manifestation intensity and the tendencies for changes in the parting structure. All of this confirms the adequacy of the techniques for parting state forecasting, which is recommended for use in the engineering documentation for the joint and downward mining of coal seams. |
| first_indexed | 2024-12-22T16:14:58Z |
| format | Article |
| id | doaj.art-fa7a7083262241069f887915ce47187c |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-22T16:14:58Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-fa7a7083262241069f887915ce47187c2022-12-21T18:20:24ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01660300110.1051/e3sconf/20186603001e3sconf_ag2018_03001Assessment of parting rock weak zones under the joint and downward mining of coal seamsBondarenko VolodymyrKovalevska IrynaSymanovych HennadiiBarabash MykhailoSnihur VasylThe aim of the forecasting effort is to identify troublesome zones of stability loss by a parting lengthwise of the extraction panel under the joint and downward mining of coal seams. Analyses have been carried out of active stress component curves for a 3-D model computational experiment compared with the strength characteristic of each lithotype of a parting. An algorithm has been developed for the stability assessment of a parting lengthwise along the extraction panel. The relationship patterns have been estimated between the sizes of the parting rocks discontinuity zones and the main geomechanical parameters. A scientifically grounded basis has been created for the detection of the parting rock weak zones lengthwise along the extraction panel for the calculation of the mounting and security systems of the development works. A complex of underground instrumental observations was made, which was used to set up a correspondence of patterns to indicate the variation in rock pressure manifestation intensity and the tendencies for changes in the parting structure. All of this confirms the adequacy of the techniques for parting state forecasting, which is recommended for use in the engineering documentation for the joint and downward mining of coal seams.https://doi.org/10.1051/e3sconf/20186603001Coal seamsJoint miningComputational experimentStability |
| spellingShingle | Bondarenko Volodymyr Kovalevska Iryna Symanovych Hennadii Barabash Mykhailo Snihur Vasyl Assessment of parting rock weak zones under the joint and downward mining of coal seams E3S Web of Conferences Coal seams Joint mining Computational experiment Stability |
| title | Assessment of parting rock weak zones under the joint and downward mining of coal seams |
| title_full | Assessment of parting rock weak zones under the joint and downward mining of coal seams |
| title_fullStr | Assessment of parting rock weak zones under the joint and downward mining of coal seams |
| title_full_unstemmed | Assessment of parting rock weak zones under the joint and downward mining of coal seams |
| title_short | Assessment of parting rock weak zones under the joint and downward mining of coal seams |
| title_sort | assessment of parting rock weak zones under the joint and downward mining of coal seams |
| topic | Coal seams Joint mining Computational experiment Stability |
| url | https://doi.org/10.1051/e3sconf/20186603001 |
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