A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Gestion des debits d'un barrage en milieu urbanise
The Joseph-Samson Dam is located on the St. Charles River near the confluence with the St. Lawrence River in the Lower Town of Quebec City. The dam creates a 3.7 km long reservoir, with a very popular linear park running alongside. This water body has esthetic value and allows recreational boating. With its anti-tidal gates, the dam protects from flooding during very high spring tides in the St. Lawrence. However, the dam has completely changed the formerly natural estuary into a channel with sedimentation formed from the organic and inorganic sediment influx coming from the semi-urban, urban and forest watershed. Highly productive fish runs up the St. Charles are a thing of the past and significant reduction in dissolved oxygen is now often observed. Furthermore, the dam may actually increase the risk of flooding in the Lower Town under high flows. One-dimensional simulations (HEC-RAS) were performed to assess the dam's impact on flood risks for different bottom gate settings and two-dimensional simulations (RIVER 2D) were performed to assess the dam's impact on river velocities and sedimentation processes.
Gestion des debits d'un barrage en milieu urbanise
The Joseph-Samson Dam is located on the St. Charles River near the confluence with the St. Lawrence River in the Lower Town of Quebec City. The dam creates a 3.7 km long reservoir, with a very popular linear park running alongside. This water body has esthetic value and allows recreational boating. With its anti-tidal gates, the dam protects from flooding during very high spring tides in the St. Lawrence. However, the dam has completely changed the formerly natural estuary into a channel with sedimentation formed from the organic and inorganic sediment influx coming from the semi-urban, urban and forest watershed. Highly productive fish runs up the St. Charles are a thing of the past and significant reduction in dissolved oxygen is now often observed. Furthermore, the dam may actually increase the risk of flooding in the Lower Town under high flows. One-dimensional simulations (HEC-RAS) were performed to assess the dam's impact on flood risks for different bottom gate settings and two-dimensional simulations (RIVER 2D) were performed to assess the dam's impact on river velocities and sedimentation processes.
Gestion des debits d'un barrage en milieu urbanise
2016
Article (Journal)
English
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