Construction du barrage OA-11 sur la rivière Eastmain
The OA-11 dam is the most important earth structure of the Eastmain – Opinaca – La Grande (EOL) project within the "La Grande" hydroelectric complex at James Bay, Quebec. Three rivers were diverted to the La Grande River to increase the hydroelectrical potential of LG-2 power plant. Dam OA...
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crcansciencepubl:10.1139/l84-040 2023-12-17T10:29:34+01:00 Construction du barrage OA-11 sur la rivière Eastmain Massiéra, Michel Pelchat, Claude 1984 http://dx.doi.org/10.1139/l84-040 http://www.nrcresearchpress.com/doi/pdf/10.1139/l84-040 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Civil Engineering volume 11, issue 2, page 273-286 ISSN 0315-1468 1208-6029 General Environmental Science Civil and Structural Engineering journal-article 1984 crcansciencepubl https://doi.org/10.1139/l84-040 2023-11-19T13:39:09Z The OA-11 dam is the most important earth structure of the Eastmain – Opinaca – La Grande (EOL) project within the "La Grande" hydroelectric complex at James Bay, Quebec. Three rivers were diverted to the La Grande River to increase the hydroelectrical potential of LG-2 power plant. Dam OA-11, 33.2 m high, has a zoned section with an impervious central core. The soil conditions of the existing overburden along the 3214 m dam axis were very variable.The presence of pervious overburden at considerable depth along the dam axis makes it necessary to use an impervious cutoff under most of the length of the dam. On the right shore, a slurry trench was therefore built. It is 1.5 m wide, 2180 m long, and varying in depth from 3 to 22.7 m. In the river bed, the dam was built on an embankment pad of granular material pushed into the water and compacted by vibroflotation. A cast-in-place concrete wall was constructed to insure a cutoff through the pervious soils of the pad and foundation. This diaphragm wall is 595 m long, 0.6 m thick, and varying in depth from 2.6 to 35.7 m.This paper describes the different phases in dam construction with emphasis on techniques used for river closure. Key words: dam, compaction, construction, diversion, closure, cast-in-place concrete wall, river, slurry trench, vibroflotation. Article in Journal/Newspaper Eastmain La Grande River James Bay Canadian Science Publishing (via Crossref) Eastmain ENVELOPE(-78.166,-78.166,52.184,52.184) Rivière Eastmain ENVELOPE(-78.561,-78.561,52.242,52.242) Canadian Journal of Civil Engineering 11 2 273 286 |
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 Pelchat, Claude Construction du barrage OA-11 sur la rivière Eastmain |
topic_facet |
General Environmental Science Civil and Structural Engineering |
description |
The OA-11 dam is the most important earth structure of the Eastmain – Opinaca – La Grande (EOL) project within the "La Grande" hydroelectric complex at James Bay, Quebec. Three rivers were diverted to the La Grande River to increase the hydroelectrical potential of LG-2 power plant. Dam OA-11, 33.2 m high, has a zoned section with an impervious central core. The soil conditions of the existing overburden along the 3214 m dam axis were very variable.The presence of pervious overburden at considerable depth along the dam axis makes it necessary to use an impervious cutoff under most of the length of the dam. On the right shore, a slurry trench was therefore built. It is 1.5 m wide, 2180 m long, and varying in depth from 3 to 22.7 m. In the river bed, the dam was built on an embankment pad of granular material pushed into the water and compacted by vibroflotation. A cast-in-place concrete wall was constructed to insure a cutoff through the pervious soils of the pad and foundation. This diaphragm wall is 595 m long, 0.6 m thick, and varying in depth from 2.6 to 35.7 m.This paper describes the different phases in dam construction with emphasis on techniques used for river closure. Key words: dam, compaction, construction, diversion, closure, cast-in-place concrete wall, river, slurry trench, vibroflotation. |
format |
Article in Journal/Newspaper |
author |
Massiéra, Michel Pelchat, Claude |
author_facet |
Massiéra, Michel Pelchat, Claude |
author_sort |
Massiéra, Michel |
title |
Construction du barrage OA-11 sur la rivière Eastmain |
title_short |
Construction du barrage OA-11 sur la rivière Eastmain |
title_full |
Construction du barrage OA-11 sur la rivière Eastmain |
title_fullStr |
Construction du barrage OA-11 sur la rivière Eastmain |
title_full_unstemmed |
Construction du barrage OA-11 sur la rivière Eastmain |
title_sort |
construction du barrage oa-11 sur la rivière eastmain |
publisher |
Canadian Science Publishing |
publishDate |
1984 |
url |
http://dx.doi.org/10.1139/l84-040 http://www.nrcresearchpress.com/doi/pdf/10.1139/l84-040 |
long_lat |
ENVELOPE(-78.166,-78.166,52.184,52.184) ENVELOPE(-78.561,-78.561,52.242,52.242) |
geographic |
Eastmain Rivière Eastmain |
geographic_facet |
Eastmain Rivière Eastmain |
genre |
Eastmain La Grande River James Bay |
genre_facet |
Eastmain La Grande River James Bay |
op_source |
Canadian Journal of Civil Engineering volume 11, issue 2, page 273-286 ISSN 0315-1468 1208-6029 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/l84-040 |
container_title |
Canadian Journal of Civil Engineering |
container_volume |
11 |
container_issue |
2 |
container_start_page |
273 |
op_container_end_page |
286 |
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1785581988592222208 |