Challenging Design of a Strutted Sheet Pile Shaft for the Highway 401 and 409 Rail Tunnels, Metrolinx Project
Prakash Nadesparan, Tyler Lahti, Mary Jane Ferraro
In the proceedings of: GeoVirtual 2020: 73rd Canadian Geotechnical ConferenceABSTRACT: A deep strutted sheet pile shaft (26m x 10m x 9.8m) was designed to facilitate the construction of support pipe canopy required for tunnel construction in the soft ground between the Highway 409 eastbound ramp and Highway 401 eastbound express lanes. The unbalanced loading on the shaft has been considered due to the grade difference between the Highway 409 ramp and Highway 401 eastbound lanes. The presence of the existing rail tunnel adjacent to the shaft excavation and existing skew of the rail tunnel relative to the Highway resulted in unique design challenges. This paper will provide a comprehensive overview of the challenges encountered during detailed design, analysis techniques adopted, and a summary of the settlement profile observed on the ground surface around the shaft.
Please include this code when submitting a data update: GEO2020_253
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Nadesparan, Prakash, Lahti, Tyler, Ferraro, Mary Jane (2020) Challenging Design of a Strutted Sheet Pile Shaft for the Highway 401 and 409 Rail Tunnels, Metrolinx Project in GEO2020. Ottawa, Ontario: Canadian Geotechnical Society.
@article{Nadesparan_GEO2020_253,
author = Prakash Nadesparan, Tyler Lahti, Mary Jane Ferraro,
title = Challenging Design of a Strutted Sheet Pile Shaft for the Highway 401 and 409 Rail Tunnels, Metrolinx Project ,
year = 2020
}
title = Challenging Design of a Strutted Sheet Pile Shaft for the Highway 401 and 409 Rail Tunnels, Metrolinx Project ,
year = 2020
}