Study of the parameters of spontaneous fire seats in coal pit rock dumps

The presence of coal and coal-bearing rocks in waste rock dumps of open-pit coal mines contributes to the occurrence of spontaneous combustions that negatively affect the environment and people. Measurements of the temperature and the content of hazardous gases in the temperature anomaly that arose...

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Main Authors: Protasov Sergey, Seregin Evgeny, Portola Vyacheslav, Bobrovnikova Alena, Gorbacheva Marina
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/91/e3sconf_iims2021_02007.pdf
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author Protasov Sergey
Seregin Evgeny
Portola Vyacheslav
Bobrovnikova Alena
Gorbacheva Marina
author_facet Protasov Sergey
Seregin Evgeny
Portola Vyacheslav
Bobrovnikova Alena
Gorbacheva Marina
author_sort Protasov Sergey
collection DOAJ
description The presence of coal and coal-bearing rocks in waste rock dumps of open-pit coal mines contributes to the occurrence of spontaneous combustions that negatively affect the environment and people. Measurements of the temperature and the content of hazardous gases in the temperature anomaly that arose in the waste rock dump of the open-pit coal mine were made to assess the parameters of spontaneous fire seats. In the course of the study, the efficiency of detecting spontaneous fire seats in waste rock dumps was assessed by measuring the rock temperature in the wells with a depth of 2.5 m, drilled at a distance of 20 m from each other. The experiment showed the difficulty of drilling control wells in waste rock dumps and the impossibility of drilling them on the slopes of dumps, especially in spontaneous fire seats with a high rock temperature. The necessity of casing control wells with pipes makes it difficult to measure the rock temperature at different depths. It was found that there are sharp drops in the rock temperature in the heated area of the dump, which cannot be detected when the wells are located at the recommended distance. The measurements showed that in all wells the temperature increases with depth, therefore the depth of wells recommended by the regulatory documents does not allow determining the size of the heated area.
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spelling doaj.art-c176c72065ed42028ffb00eeefa47ff42022-12-21T20:47:33ZengEDP SciencesE3S Web of Conferences2267-12422021-01-013150200710.1051/e3sconf/202131502007e3sconf_iims2021_02007Study of the parameters of spontaneous fire seats in coal pit rock dumpsProtasov SergeySeregin EvgenyPortola Vyacheslav0Bobrovnikova Alena1Gorbacheva Marina2T.F. Gorbachev Kuzbass State Technical UniversityT.F. Gorbachev Kuzbass State Technical UniversityT.F. Gorbachev Kuzbass State Technical UniversityThe presence of coal and coal-bearing rocks in waste rock dumps of open-pit coal mines contributes to the occurrence of spontaneous combustions that negatively affect the environment and people. Measurements of the temperature and the content of hazardous gases in the temperature anomaly that arose in the waste rock dump of the open-pit coal mine were made to assess the parameters of spontaneous fire seats. In the course of the study, the efficiency of detecting spontaneous fire seats in waste rock dumps was assessed by measuring the rock temperature in the wells with a depth of 2.5 m, drilled at a distance of 20 m from each other. The experiment showed the difficulty of drilling control wells in waste rock dumps and the impossibility of drilling them on the slopes of dumps, especially in spontaneous fire seats with a high rock temperature. The necessity of casing control wells with pipes makes it difficult to measure the rock temperature at different depths. It was found that there are sharp drops in the rock temperature in the heated area of the dump, which cannot be detected when the wells are located at the recommended distance. The measurements showed that in all wells the temperature increases with depth, therefore the depth of wells recommended by the regulatory documents does not allow determining the size of the heated area.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/91/e3sconf_iims2021_02007.pdf
spellingShingle Protasov Sergey
Seregin Evgeny
Portola Vyacheslav
Bobrovnikova Alena
Gorbacheva Marina
Study of the parameters of spontaneous fire seats in coal pit rock dumps
E3S Web of Conferences
title Study of the parameters of spontaneous fire seats in coal pit rock dumps
title_full Study of the parameters of spontaneous fire seats in coal pit rock dumps
title_fullStr Study of the parameters of spontaneous fire seats in coal pit rock dumps
title_full_unstemmed Study of the parameters of spontaneous fire seats in coal pit rock dumps
title_short Study of the parameters of spontaneous fire seats in coal pit rock dumps
title_sort study of the parameters of spontaneous fire seats in coal pit rock dumps
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/91/e3sconf_iims2021_02007.pdf
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