A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
U.S. 36 Emergency Project—Geofoam Fill to Support Urban Roadway Traffic
An approximately 35-foot-high retaining wall supporting eastbound U.S. Highway 36 near Milepost 49.8 experienced a failure of the foundation materials below the wall system, resulting in closure of eastbound U.S. 36 on July 12, 2019. Vertical downward movement of the wall system was in excess of 8 ft by the end of July 2019. To assist the Colorado Department of Transportation (CDOT) in designing a repair option and to facilitate rebuilding the wall system, RJ Engineering and Consulting, Inc. (RJ) worked as a geotechnical sub-consultant designer to restore traffic within 12 weeks of the initial failure. This paper presents our evaluation, analysis, design, and monitoring for the rebuild of the wall system that utilized more than 23,000 cy of geofoam also known as expanded polystyrene (EPS) and drilled shafts (caissons) for global stability support. Peak and residual shear strength parameters used in the stability evaluation and analysis including the use of both phi (internal friction angle) and cohesion shear strength parameters are described and discussed.
U.S. 36 Emergency Project—Geofoam Fill to Support Urban Roadway Traffic
An approximately 35-foot-high retaining wall supporting eastbound U.S. Highway 36 near Milepost 49.8 experienced a failure of the foundation materials below the wall system, resulting in closure of eastbound U.S. 36 on July 12, 2019. Vertical downward movement of the wall system was in excess of 8 ft by the end of July 2019. To assist the Colorado Department of Transportation (CDOT) in designing a repair option and to facilitate rebuilding the wall system, RJ Engineering and Consulting, Inc. (RJ) worked as a geotechnical sub-consultant designer to restore traffic within 12 weeks of the initial failure. This paper presents our evaluation, analysis, design, and monitoring for the rebuild of the wall system that utilized more than 23,000 cy of geofoam also known as expanded polystyrene (EPS) and drilled shafts (caissons) for global stability support. Peak and residual shear strength parameters used in the stability evaluation and analysis including the use of both phi (internal friction angle) and cohesion shear strength parameters are described and discussed.
U.S. 36 Emergency Project—Geofoam Fill to Support Urban Roadway Traffic
Arndt, Ben (author) / Johnson, Richard (author) / Kionka, Kurt (author)
Rocky Mountain Geo-Conference 2021 ; 2021 ; Westminster, Colorado
2021-04-14
Conference paper
Electronic Resource
English
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