Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geomorphic and River Channel Stability Assessment of the Merced River at the Ferguson Slide, Mariposa County, CA
On April 29, 2006, the Ferguson Rock Slide covered California Highway 140 with approximately 70,000 cubic meters of material at Ferguson Ridge. Slide debris protrudes into the Merced River and continues to periodically accumulate in and along the river channel. Caltrans has installed temporary detour bridges and proposes to permanently install one of several alternative bridge designs. Balance Hydrologics, under subcontract to Parsons Transportation Group, has conducted a geomorphic and river channel stability assessment to examine the potential effects of the various bridge alternatives on river stability, channel migration, and scour and fill. Here we describe morphologic evaluation of the existing channel and a spatially-distributed incipient motion analysis keyed to geomorphic map units and simulated 2D hydrodynamic river behavior. This work represents a novel and useful approach to assess channel stability at engineered crossings, and provides a much clearer picture of river behavior than typical scour analysis calculations.
Geomorphic and River Channel Stability Assessment of the Merced River at the Ferguson Slide, Mariposa County, CA
On April 29, 2006, the Ferguson Rock Slide covered California Highway 140 with approximately 70,000 cubic meters of material at Ferguson Ridge. Slide debris protrudes into the Merced River and continues to periodically accumulate in and along the river channel. Caltrans has installed temporary detour bridges and proposes to permanently install one of several alternative bridge designs. Balance Hydrologics, under subcontract to Parsons Transportation Group, has conducted a geomorphic and river channel stability assessment to examine the potential effects of the various bridge alternatives on river stability, channel migration, and scour and fill. Here we describe morphologic evaluation of the existing channel and a spatially-distributed incipient motion analysis keyed to geomorphic map units and simulated 2D hydrodynamic river behavior. This work represents a novel and useful approach to assess channel stability at engineered crossings, and provides a much clearer picture of river behavior than typical scour analysis calculations.
Geomorphic and River Channel Stability Assessment of the Merced River at the Ferguson Slide, Mariposa County, CA
Strudley, M. W. (Autor:in) / Guensch, G. R. (Autor:in) / Hastings, B. K. (Autor:in) / Thompson, K. (Autor:in) / Chartrand, S. M. (Autor:in) / Roberts, B. (Autor:in) / Hecht, B. (Autor:in)
International Conference on Scour and Erosion (ICSE-5) 2010 ; 2010 ; San Francisco, California, United States
Scour and Erosion ; 1033-1042
29.10.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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