La tranchée à boue lourde du barrage OA-11
The OA-11 dam is the most important impounding structure of the Opinaca reservoir created by the water diversion of the Eastmain, Petit Opinaca and Opinaca rivers to the La Grande River to increase the hydroelectric potential of the LG-2 power plant. With a maximum height of 32.2 m and a crest lengt...
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Language: | English |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/l87-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/l87-123 |
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crcansciencepubl:10.1139/l87-123 2023-12-17T10:33:01+01:00 La tranchée à boue lourde du barrage OA-11 Massiéra, Michel Paré, Jean-Jacques 1987 http://dx.doi.org/10.1139/l87-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/l87-123 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Civil Engineering volume 14, issue 6, page 844-856 ISSN 0315-1468 1208-6029 General Environmental Science Civil and Structural Engineering journal-article 1987 crcansciencepubl https://doi.org/10.1139/l87-123 2023-11-19T13:39:09Z The OA-11 dam is the most important impounding structure of the Opinaca reservoir created by the water diversion of the Eastmain, Petit Opinaca and Opinaca rivers to the La Grande River to increase the hydroelectric potential of the LG-2 power plant. With a maximum height of 32.2 m and a crest length of 3214 m, this earthfill dam was built on relatively pervious fluvio-glacial deposits that made it necessary to use two impervious deep cutoffs (a slurry trench and a cast-in-place concrete panel wall). On the right shore, a slurry trench, 2180 m long, 1.5 m wide, and varying in depth from 3 to 22.7 m, was built.This paper describes the different construction phases of the slurry trench with emphasis on excavation and backfilling, and quality control. The slurry trench performance has been assessed in terms of the pore pressures developed in the foundation and at the toe during and after reservoir filling. Key words: dam, construction, cutoff, excavation, foundation, backfilling, soil–bentonite mixture, slurry trench, treatment. Article in Journal/Newspaper La Grande River Canadian Science Publishing (via Crossref) The Toe ENVELOPE(-59.167,-59.167,-62.333,-62.333) Eastmain ENVELOPE(-78.166,-78.166,52.184,52.184) Canadian Journal of Civil Engineering 14 6 844 856 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Environmental Science Civil and Structural Engineering |
spellingShingle |
General Environmental Science Civil and Structural Engineering Massiéra, Michel Paré, Jean-Jacques La tranchée à boue lourde du barrage OA-11 |
topic_facet |
General Environmental Science Civil and Structural Engineering |
description |
The OA-11 dam is the most important impounding structure of the Opinaca reservoir created by the water diversion of the Eastmain, Petit Opinaca and Opinaca rivers to the La Grande River to increase the hydroelectric potential of the LG-2 power plant. With a maximum height of 32.2 m and a crest length of 3214 m, this earthfill dam was built on relatively pervious fluvio-glacial deposits that made it necessary to use two impervious deep cutoffs (a slurry trench and a cast-in-place concrete panel wall). On the right shore, a slurry trench, 2180 m long, 1.5 m wide, and varying in depth from 3 to 22.7 m, was built.This paper describes the different construction phases of the slurry trench with emphasis on excavation and backfilling, and quality control. The slurry trench performance has been assessed in terms of the pore pressures developed in the foundation and at the toe during and after reservoir filling. Key words: dam, construction, cutoff, excavation, foundation, backfilling, soil–bentonite mixture, slurry trench, treatment. |
format |
Article in Journal/Newspaper |
author |
Massiéra, Michel Paré, Jean-Jacques |
author_facet |
Massiéra, Michel Paré, Jean-Jacques |
author_sort |
Massiéra, Michel |
title |
La tranchée à boue lourde du barrage OA-11 |
title_short |
La tranchée à boue lourde du barrage OA-11 |
title_full |
La tranchée à boue lourde du barrage OA-11 |
title_fullStr |
La tranchée à boue lourde du barrage OA-11 |
title_full_unstemmed |
La tranchée à boue lourde du barrage OA-11 |
title_sort |
la tranchée à boue lourde du barrage oa-11 |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/l87-123 http://www.nrcresearchpress.com/doi/pdf/10.1139/l87-123 |
long_lat |
ENVELOPE(-59.167,-59.167,-62.333,-62.333) ENVELOPE(-78.166,-78.166,52.184,52.184) |
geographic |
The Toe Eastmain |
geographic_facet |
The Toe Eastmain |
genre |
La Grande River |
genre_facet |
La Grande River |
op_source |
Canadian Journal of Civil Engineering volume 14, issue 6, page 844-856 ISSN 0315-1468 1208-6029 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/l87-123 |
container_title |
Canadian Journal of Civil Engineering |
container_volume |
14 |
container_issue |
6 |
container_start_page |
844 |
op_container_end_page |
856 |
_version_ |
1785586885815435264 |