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SAINT-LAWRENCE RIVER AT TROIS-RIVIÈRES |
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Since
the early sixties, the LaSalle Consulting Group has published a
number of scientific papers that are still cited as references today
when it comes to the theoretical aspects of river ice hydraulics.
Initially, LaSalle's expertise was focused on the calculations of
flood water levels due to the influence of frazil ice accumulations
or ice jams. However, LaSalle has broadened its activities over
the years and has been involved in numerous projects covering all
the aspects of river hydraulics in northern regions. Depending on
the project's implication, the appropriate tool - numerical or physical
modelling - is selected to perform the study.
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Thermal exchanges with the atmosphere
- Water temperatures in rivers
- Ice freeze-up and break-up forecasting
LIMESTONE HYDROELECTRIC DEVELOPMENT, NELSON RIVER, MANITOBA
FRAZIL ICE ACCUMULATION
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Frazil/ice generation and accumulation
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Ice cover stability
- FRASIL and DEBACLE : Numerical models developed by the LaSalle Consulting Group
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Ice thrusts on structures
- Scale model studies
- Ice jams and break-up : Influence on water levels
EXPO 67, MONTREAL
Environmental
impact study of the Grand-Mère hydroelectric development: site observations
and participation in the Saint-Maurice river ice covers study committee.
Study of the
partial diversion of the Romaine river to the Churchill Falls complex
(Hydro-Québec). Site survey, water temperature measurements and numerical
modelling of the ice conditions in the Atikonak lake and river (Labrador).
Muskrat Falls
hydroelectric development (Churchill Falls Company, Labrador). Numerical
modelling of ice cover formation and stability during temporary diversion.
CF2 project
(Churchill Falls Company, Labrador). Numerical modelling of the ice conditions
resulting from an increase in the flow rate to the Smallwood reservoir.
EM-1 project
(Hydro-Québec). Study of the hydraulic conditions in the Wabamisk channel
following the partial diversion of the Rupert river.
EM-1 project
(Hydro-Québec). Thermal regime of the reservoir - Frazil ice generation
and water levels downstream of the power plant.
EM-1 project
(Hydro-Québec). Numerical modelling of the winter hydraulic conditions
along the diversion channels of the Eastmain and Rupert rivers.
Portneuf river
(Innergex). Ice conditions between the PN-2 and PN-3 power plants.
Chaudière Falls
mini-hydroelectric station (Innergex). Study of the winter hydraulic conditions
in the upstream reach.
Chute-Garneau
and Pont-Arnaud developments on the Chicoutimi river (Hydro-Québec). Emergency
measures to ensure ice cover formation during the first winter following
the July 1996 flood.
Saint-Jean,
À-Mars and Ha! Ha! rivers: Ice conditions for the winters following the
exceptional flood in the summer of 1996. Analysis to determine the remedial
works required.
