Mathematical modelling of borehole grouting in permafrost
The process of borehole grouting in the regions of permafrost is more complicated than in normal climatic conditions due to the possible thawing of the frozen rock, which can be induced by the heat produced during cement hydration. In order to prevent thawing of the surrounding formation, the main c...
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ftneicon:oai:rour.neicon.ru:rour/134577 2023-05-15T17:56:42+02:00 Mathematical modelling of borehole grouting in permafrost Fomin S. Chugunov V. Hashida T. 2004 https://openrepository.ru/article?id=134577 unknown Elsevier Geo-Engineering Book Series C 773 2 1571-9960 https://openrepository.ru/article?id=134577 SCOPUS15719960-2004-2--SID77957029024 Article 2004 ftneicon 2020-07-21T11:48:35Z The process of borehole grouting in the regions of permafrost is more complicated than in normal climatic conditions due to the possible thawing of the frozen rock, which can be induced by the heat produced during cement hydration. In order to prevent thawing of the surrounding formation, the main conditions that should be imposed on the grouting off technology and properties of the cementing slurries are rapid cement hydration and low heat generation during chemical reaction. Mathematical model of the grouting off process in permafrost, presented in this study, accounts for heat transferred from the borehole circulating mud and heat generated due to cement hydration. The problem is solved analytically by the approximate integral-heat-balance method. As a result, the close-form solutions for the temperature field in the cemented region and surrounding formation are obtained. On the basis of these analytical solutions, analytical criteria for the borehole grouting off regimes that take place without thawing of the frozen rock are proposed. These criteria can be readily used for assessing physical and chemical properties of the cement slurries and their suitability for grouting off the borehole in permafrost. © 2004 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper permafrost NORA (National aggregator of open repositories of Russian universities) |
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NORA (National aggregator of open repositories of Russian universities) |
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The process of borehole grouting in the regions of permafrost is more complicated than in normal climatic conditions due to the possible thawing of the frozen rock, which can be induced by the heat produced during cement hydration. In order to prevent thawing of the surrounding formation, the main conditions that should be imposed on the grouting off technology and properties of the cementing slurries are rapid cement hydration and low heat generation during chemical reaction. Mathematical model of the grouting off process in permafrost, presented in this study, accounts for heat transferred from the borehole circulating mud and heat generated due to cement hydration. The problem is solved analytically by the approximate integral-heat-balance method. As a result, the close-form solutions for the temperature field in the cemented region and surrounding formation are obtained. On the basis of these analytical solutions, analytical criteria for the borehole grouting off regimes that take place without thawing of the frozen rock are proposed. These criteria can be readily used for assessing physical and chemical properties of the cement slurries and their suitability for grouting off the borehole in permafrost. © 2004 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Fomin S. Chugunov V. Hashida T. |
spellingShingle |
Fomin S. Chugunov V. Hashida T. Mathematical modelling of borehole grouting in permafrost |
author_facet |
Fomin S. Chugunov V. Hashida T. |
author_sort |
Fomin S. |
title |
Mathematical modelling of borehole grouting in permafrost |
title_short |
Mathematical modelling of borehole grouting in permafrost |
title_full |
Mathematical modelling of borehole grouting in permafrost |
title_fullStr |
Mathematical modelling of borehole grouting in permafrost |
title_full_unstemmed |
Mathematical modelling of borehole grouting in permafrost |
title_sort |
mathematical modelling of borehole grouting in permafrost |
publishDate |
2004 |
url |
https://openrepository.ru/article?id=134577 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
SCOPUS15719960-2004-2--SID77957029024 |
op_relation |
Elsevier Geo-Engineering Book Series C 773 2 1571-9960 https://openrepository.ru/article?id=134577 |
_version_ |
1766164942564622336 |