2019-20 DFI Traveling Lecture at ASCE San Francisco Geo-Institute Meeting

June 25, 2020 – Online

The 2019-20 DFI Traveling Lecturer Willie M. NeSmith, P.E., delivered his presentation on the Application of Drilled Displacement Elements for Liquefication Mitigation and Foundation Improvement for the San Francisco Geo-Institute. The lecture will be delivered as a webinar.

The presentation examined the increase in density in the vicinity of drilled displacement piles when they are installed in materials that exhibit granular behavior. The increase is most pronounced in loose to medium dense materials and can be utilized to mitigate liquefication and increase the foundation response stiffness of the mass of the material penetrated. Case histories are presented wherein ground improvement elements were installed using drilled displacement pile processes to mitigate liquefaction and increase allowable foundation loading.