Blast induced liquefaction provides an opportunity to evaluate the behavior of piles and ground improvement techniques at full-scale and in natural soil conditions. Using this technique, an array of small explosives charges located around the perimeter of a field test area are detonated sequentially. Instrumentation is then used to monitor the generation and dissipation of excess pore pressure and the resulting settlement of the soil. Piles can be loaded laterally to develop load-deflection relationships in liquefied sand or loaded axially to investigate downdrag after liquefaction. Ground improvement techniques such as stone columns, vertical drains, and rammed aggregate piers have been investigated using blast testing. Prof. Rollins will highlight lessons learned from blast testing and show videos of tests in the US, Canada, New Zealand, and Italy.
May 20, 2025 - 4:30pm-5:30pm
The seminar will take place only in presence at the Room Caveau, Faculty of Engineering, via Eudossiana 18, Rome.
For the seminars supplied by the PhD Program of the DISG credits are not provided. Also certificates of attendance will not be produced for seminars.