DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE
Goal. Metal frame supports SVP-22 with round timber lagging and backfilling of the voidsof unsupported space with chock support is used in the workings of unstable ores and rocks at the Orlovsky mine. When filling the voids with a chock supportmanually, people are located in an unsupported part of t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Peoples’ Friendship University of Russia (RUDN University)
2018-12-01
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| Series: | RUDN Journal of Engineering Research |
| Subjects: | |
| Online Access: | http://journals.rudn.ru/engineering-researches/article/view/18919 |
| _version_ | 1811173852038823936 |
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| author | Yuriy N Shaposhnik Anton I Konurin Denis A Shokarev Sergey N Shaposhnik |
| author_facet | Yuriy N Shaposhnik Anton I Konurin Denis A Shokarev Sergey N Shaposhnik |
| author_sort | Yuriy N Shaposhnik |
| collection | DOAJ |
| description | Goal. Metal frame supports SVP-22 with round timber lagging and backfilling of the voidsof unsupported space with chock support is used in the workings of unstable ores and rocks at the Orlovsky mine. When filling the voids with a chock supportmanually, people are located in an unsupported part of the working, therefore this operation is hazardous and laborious. The purpose of the work is to select and test the backfill material for voids of unsupported space, which ensures a decrease in diffusion and oxygen seepage to the centers of spontaneous ignition of the ore bodies under conditions of intense oxidation of sulphide ores at the Orlovsky deposit. Methods. Foaming non-combustible materials (“Blockfil” phenolic two-component resins) were tested in the experimental works at the Orlovsky mine for backfilling the voids when supporting the mine workings by metal frame supports with a round timber lagging. Results. It has been established that the use of phenolic resins as backfilling will reduce the intensity of the oxidation reaction and prevent self-heating of the ore to critical temperatures, and also prevent or slow down the process of heating ofmine air from the heated surface of the ore body to temperatures exceeding the design values. Conclusions. The use of phenolic resin “Blockfil” to fill the voids ensured the absence of deformation of the elements of the metal frame support and the safety of mining, and also allowed to reduce the intensity of the oxidation reaction and prevent self-heating from the ore to critical temperatures and prevent or slow down the process of heating the mine air from the heated surface of the ore body to temperatures, exceeding the design values. |
| first_indexed | 2024-04-10T17:53:44Z |
| format | Article |
| id | doaj.art-280957ea14eb4f738d84a08c64462fc3 |
| institution | Directory Open Access Journal |
| issn | 2312-8143 2312-8151 |
| language | English |
| last_indexed | 2024-04-10T17:53:44Z |
| publishDate | 2018-12-01 |
| publisher | Peoples’ Friendship University of Russia (RUDN University) |
| record_format | Article |
| series | RUDN Journal of Engineering Research |
| spelling | doaj.art-280957ea14eb4f738d84a08c64462fc32023-02-02T19:07:10ZengPeoples’ Friendship University of Russia (RUDN University)RUDN Journal of Engineering Research2312-81432312-81512018-12-0119223524510.22363/2312-8143-2018-19-2-235-24516645DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINEYuriy N Shaposhnik0Anton I Konurin1Denis A Shokarev2Sergey N Shaposhnik3<p>Институт горного дела им. Н.А. Чинакала Сибирского отделения РАН</p><p>Институт горного дела им. Н.А. Чинакала Сибирского отделения РАН</p><p>ТОО ExpertPRO</p><p>Восточно-Казахстанский государственный технический университет</p>Goal. Metal frame supports SVP-22 with round timber lagging and backfilling of the voidsof unsupported space with chock support is used in the workings of unstable ores and rocks at the Orlovsky mine. When filling the voids with a chock supportmanually, people are located in an unsupported part of the working, therefore this operation is hazardous and laborious. The purpose of the work is to select and test the backfill material for voids of unsupported space, which ensures a decrease in diffusion and oxygen seepage to the centers of spontaneous ignition of the ore bodies under conditions of intense oxidation of sulphide ores at the Orlovsky deposit. Methods. Foaming non-combustible materials (“Blockfil” phenolic two-component resins) were tested in the experimental works at the Orlovsky mine for backfilling the voids when supporting the mine workings by metal frame supports with a round timber lagging. Results. It has been established that the use of phenolic resins as backfilling will reduce the intensity of the oxidation reaction and prevent self-heating of the ore to critical temperatures, and also prevent or slow down the process of heating ofmine air from the heated surface of the ore body to temperatures exceeding the design values. Conclusions. The use of phenolic resin “Blockfil” to fill the voids ensured the absence of deformation of the elements of the metal frame support and the safety of mining, and also allowed to reduce the intensity of the oxidation reaction and prevent self-heating from the ore to critical temperatures and prevent or slow down the process of heating the mine air from the heated surface of the ore body to temperatures, exceeding the design values.http://journals.rudn.ru/engineering-researches/article/view/18919подземная горная выработказакрепное пространстворамная крепьдинамические нагрузкиподатливость крепизабутовкафенольная смолавспененная глинистая пульпа |
| spellingShingle | Yuriy N Shaposhnik Anton I Konurin Denis A Shokarev Sergey N Shaposhnik DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE RUDN Journal of Engineering Research подземная горная выработка закрепное пространство рамная крепь динамические нагрузки податливость крепи забутовка фенольная смола вспененная глинистая пульпа |
| title | DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE |
| title_full | DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE |
| title_fullStr | DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE |
| title_full_unstemmed | DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE |
| title_short | DEVELOPMENT OF TECHNOLOGY FOR SUPPORTING MINE WORKINGS UNDER CONDITIONS OF INTENSE OXIDATION OF SULFIDE ORES AT THE ORLOVSKY MINE |
| title_sort | development of technology for supporting mine workings under conditions of intense oxidation of sulfide ores at the orlovsky mine |
| topic | подземная горная выработка закрепное пространство рамная крепь динамические нагрузки податливость крепи забутовка фенольная смола вспененная глинистая пульпа |
| url | http://journals.rudn.ru/engineering-researches/article/view/18919 |
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