Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes
Drilling and blasting operations (D&B) are the most difficult and laborious operations in the process of mineral extraction, requiring permanent development and upgrading of methods and equipment. The aim of the study is to substantiate the parameters of drilling and blasting drivage of horizont...
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| Format: | Article |
| Language: | English |
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National University of Science and Technology MISiS
2020-12-01
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| Series: | Горные науки и технологии |
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| Online Access: | https://mst.misis.ru/jour/article/view/252 |
| _version_ | 1818716478313070592 |
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| author | V. I. Lyashenko O. E. Khomenko M. N. Kononenko |
| author_facet | V. I. Lyashenko O. E. Khomenko M. N. Kononenko |
| author_sort | V. I. Lyashenko |
| collection | DOAJ |
| description | Drilling and blasting operations (D&B) are the most difficult and laborious operations in the process of mineral extraction, requiring permanent development and upgrading of methods and equipment. The aim of the study is to substantiate the parameters of drilling and blasting drivage of horizontal and inclined (up to 12o) mine workings on the basis of high-performance self-propelled equipment and new designs of box cuts with cleaning explosive charges (0.2 kg of 6ZhV ammonite), placed in advance holes of 65 to 105 mm in diameter. The paper presents the results of the analysis of practical experience and scientific achievements in the field of drilling-andblasting rupture of solid media and continuum mechanics. The need for new designs of box cuts, reliability of which in the formation of high-quality (clean) cut cavity reaches 0.95-1.00, was substantiated. New design options of box cuts have been developed, the peculiarity of which consists in provision of sufficient compensation (peripheral) volume with the use of blast hole cut charges for blasting rupture of trapezoidal partitions, with the compensation volume factor of 2.50 to 1.34. Promising areas of research were shown using the example of complicated structure ore deposits and large faults in the Kirovograd ore district and crystalline rocks of the Ukrainian shield at the following mines of Ukraine: PJSC KZhRK, CJSC Sukhaya Balka (Kryvyi Rih), Vostok-Ruda LLC, SE VostGOK (Zheltye Vody), CJSC ZZhRK, etc. Promising areas of research were proposed using the example of complicated structure ore deposits typically formed at the junction of large faults; besides, the use of environmentally friendly emulsion explosives and self-propelled emulsion explosive chargers was recommended. |
| first_indexed | 2024-12-17T19:19:54Z |
| format | Article |
| id | doaj.art-20e8ea1761f342b28c2d9f542f76be83 |
| institution | Directory Open Access Journal |
| issn | 2500-0632 |
| language | English |
| last_indexed | 2024-12-17T19:19:54Z |
| publishDate | 2020-12-01 |
| publisher | National University of Science and Technology MISiS |
| record_format | Article |
| series | Горные науки и технологии |
| spelling | doaj.art-20e8ea1761f342b28c2d9f542f76be832022-12-21T21:35:36ZengNational University of Science and Technology MISiSГорные науки и технологии2500-06322020-12-015433634810.17073/2500-0632-2020-4-336-348Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holesV. I. Lyashenko0O. E. Khomenko1M. N. Kononenko2State Enterprise Ukrainian Scientific Research and Design Institute of Industrial Technologies (SE "UkrNIPIIpromtekhnologii"), Ukraine, Zheltye VodyNational Technical University "Dneprovskaya Polytechnica", Ukraine, DniproNational Technical University "Dneprovskaya Polytechnica", Ukraine, DniproDrilling and blasting operations (D&B) are the most difficult and laborious operations in the process of mineral extraction, requiring permanent development and upgrading of methods and equipment. The aim of the study is to substantiate the parameters of drilling and blasting drivage of horizontal and inclined (up to 12o) mine workings on the basis of high-performance self-propelled equipment and new designs of box cuts with cleaning explosive charges (0.2 kg of 6ZhV ammonite), placed in advance holes of 65 to 105 mm in diameter. The paper presents the results of the analysis of practical experience and scientific achievements in the field of drilling-andblasting rupture of solid media and continuum mechanics. The need for new designs of box cuts, reliability of which in the formation of high-quality (clean) cut cavity reaches 0.95-1.00, was substantiated. New design options of box cuts have been developed, the peculiarity of which consists in provision of sufficient compensation (peripheral) volume with the use of blast hole cut charges for blasting rupture of trapezoidal partitions, with the compensation volume factor of 2.50 to 1.34. Promising areas of research were shown using the example of complicated structure ore deposits and large faults in the Kirovograd ore district and crystalline rocks of the Ukrainian shield at the following mines of Ukraine: PJSC KZhRK, CJSC Sukhaya Balka (Kryvyi Rih), Vostok-Ruda LLC, SE VostGOK (Zheltye Vody), CJSC ZZhRK, etc. Promising areas of research were proposed using the example of complicated structure ore deposits typically formed at the junction of large faults; besides, the use of environmentally friendly emulsion explosives and self-propelled emulsion explosive chargers was recommended.https://mst.misis.ru/jour/article/view/252ore massmine workingsdrivage with blasting techniquebox cutcleaning chargesafetyperformance |
| spellingShingle | V. I. Lyashenko O. E. Khomenko M. N. Kononenko Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes Горные науки и технологии ore mass mine workings drivage with blasting technique box cut cleaning charge safety performance |
| title | Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| title_full | Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| title_fullStr | Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| title_full_unstemmed | Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| title_short | Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| title_sort | substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes |
| topic | ore mass mine workings drivage with blasting technique box cut cleaning charge safety performance |
| url | https://mst.misis.ru/jour/article/view/252 |
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