Location
STEW 218CD
Session Number
58
Session Title
Case Study—Managing Extreme Down-Drag on Piling
Track Title
Bridges
Event Description/Abstract
This case study describes how foundation piling negative skin friction was managed for the reconstruction of the I-69 and I-94 interchange near Port Huron, Michigan, and the Canadian border. The site has deep and compressible clays capable of developing large downdrag forces on foundation piling for bridges due to settlement of approach embankments. A combination of wick-drain ground improvement, pre-loading with settlement and pore pressure monitoring, lightweight fills, and mandatory wait periods were used at this site.
Case Study: Managing Extreme Down-Drag on Piling
STEW 218CD
This case study describes how foundation piling negative skin friction was managed for the reconstruction of the I-69 and I-94 interchange near Port Huron, Michigan, and the Canadian border. The site has deep and compressible clays capable of developing large downdrag forces on foundation piling for bridges due to settlement of approach embankments. A combination of wick-drain ground improvement, pre-loading with settlement and pore pressure monitoring, lightweight fills, and mandatory wait periods were used at this site.
