Geotechnical Behaviour of Frozen Mine Backfills
This thesis presents the results of an investigation of factors which influence the geotechnical properties of frozen mine backfill (FMB). FMB has extensive application potential for mining in permafrost areas. The uniaxial compressive strength (UCS) of hardened backfill is often used to evaluate mi...
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ftcanadathes:oai:collectionscanada.gc.ca:OOU./en#10393/20250 2023-05-15T17:57:45+02:00 Geotechnical Behaviour of Frozen Mine Backfills Han, Fa Sen 2011-09-28T14:23:24Z http://hdl.handle.net/10393/20250 en eng http://hdl.handle.net/10393/20250 frozen mine backfill cemented paste backfill frozen tailings backfill frozen cemented paste backfill uniaxial compressive strength geotechnical properties Thèse / Thesis 2011 ftcanadathes 2013-11-23T21:35:11Z This thesis presents the results of an investigation of factors which influence the geotechnical properties of frozen mine backfill (FMB). FMB has extensive application potential for mining in permafrost areas. The uniaxial compressive strength (UCS) of hardened backfill is often used to evaluate mine backfill stability. However, the deformation behaviour and stiffness of the FMB are also key design properties of interest. In this thesis, uniaxial compressive tests were conducted on FTB and FCPB samples. Information about the geotechnical properties of FMB is obtained. The effects of FMB mix components and vertical compression pressure on the geotechnical properties of FMB are discussed and summarized. An optimum total water content of 25%-35% is found in which the strength and the modulus of elasticity of the FTB are 1.4-3.2 MPa and 35-58 MPa, respectively. It is observed that a small amount (3-6%) of cement can significantly change the geotechnical properties of FTB. Thesis permafrost Theses Canada/Thèses Canada (Library and Archives Canada) |
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Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
frozen mine backfill cemented paste backfill frozen tailings backfill frozen cemented paste backfill uniaxial compressive strength geotechnical properties |
spellingShingle |
frozen mine backfill cemented paste backfill frozen tailings backfill frozen cemented paste backfill uniaxial compressive strength geotechnical properties Han, Fa Sen Geotechnical Behaviour of Frozen Mine Backfills |
topic_facet |
frozen mine backfill cemented paste backfill frozen tailings backfill frozen cemented paste backfill uniaxial compressive strength geotechnical properties |
description |
This thesis presents the results of an investigation of factors which influence the geotechnical properties of frozen mine backfill (FMB). FMB has extensive application potential for mining in permafrost areas. The uniaxial compressive strength (UCS) of hardened backfill is often used to evaluate mine backfill stability. However, the deformation behaviour and stiffness of the FMB are also key design properties of interest. In this thesis, uniaxial compressive tests were conducted on FTB and FCPB samples. Information about the geotechnical properties of FMB is obtained. The effects of FMB mix components and vertical compression pressure on the geotechnical properties of FMB are discussed and summarized. An optimum total water content of 25%-35% is found in which the strength and the modulus of elasticity of the FTB are 1.4-3.2 MPa and 35-58 MPa, respectively. It is observed that a small amount (3-6%) of cement can significantly change the geotechnical properties of FTB. |
format |
Thesis |
author |
Han, Fa Sen |
author_facet |
Han, Fa Sen |
author_sort |
Han, Fa Sen |
title |
Geotechnical Behaviour of Frozen Mine Backfills |
title_short |
Geotechnical Behaviour of Frozen Mine Backfills |
title_full |
Geotechnical Behaviour of Frozen Mine Backfills |
title_fullStr |
Geotechnical Behaviour of Frozen Mine Backfills |
title_full_unstemmed |
Geotechnical Behaviour of Frozen Mine Backfills |
title_sort |
geotechnical behaviour of frozen mine backfills |
publishDate |
2011 |
url |
http://hdl.handle.net/10393/20250 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
http://hdl.handle.net/10393/20250 |
_version_ |
1766166238788059136 |