101st Purdue Road School Transportation Conference and Expo
3/10/2015 - 3/12/2015
Purdue University, West Lafayette, Indiana
SME’s Christopher R. Byrum, PhD, PE presented “Managing Extreme Down-Drag on Piling" at the 101st Purdue Road School Transportation Conference and Expo, which was held March 10-12, 2015 at Purdue University in West Lafayette, Indiana. Purdue Road School is co-sponsored by JTRP and the Indiana Local Technical Assistance Program (LTAP) and attracts over 2,000 Indiana local and state officials, consultants, and suppliers each year. Important updates on pertinent transportation issues, as well as sessions on topics of general interest, are provided in the two-day conference. The 101st Purdue Road School included 126 technical sessions with record of attendance of 2,418 transportation professionals. Chris’s case study described 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. To learn more about Purdue Road School, go to https://engineering.purdue.edu/JTRP/road-school.