Thursday, August 28, 2025
Speakers
The Benefits of Combining Side Friction and End Bearing in Drilled Shafts
Sebastian Lobo-Guerrero, Ph.D., P.E., BC.GE.
American Geotechnical and Environmental Services (A.G.E.S.) / University of Pittsburgh
This presentation explains and illustrates the benefits of combining side friction and end bearing in the design and construction of drilled shafts. A case study including a bi-directional load test is presented to showcase these benefits. Other important and necessary aspects required to account these benefits are illustrated: testing prior installation of the drilled shaft (sonic calliper, downhole camera, mini-SID) and testing post construction (CSL, TIP, coring). Quality control and quality assurance being key elements to an optimized design.
Pile Load Testing In Sedimentary Rocks: Three Cases Of Design Optimization
Walter Paniagua, Ph.D.
Pilotec
Three cases are presented in which static load tests were
carried out on foundation piles: two in Monterrey, where shale and
limestone are present, and one in Cancun, where soft limestone rock is
found. In all cases, the tests were conducted prior to the construction
of the deep foundation.
After performing the tests, it was found that
the load-bearing capacity determined through analytical models was
significantly lower than the capacity measured in the load tests. A
determining factor was the poor quality of the rock cores extracted
during the...
St. Petersburg Pier – Optimized Pile Design Using SPT Borings and PDA Testing
Deborah De Lima
Thornton Tomasetti
Thornton Tomasetti collaborated on the St. Pete Pier project to optimize the originally conservative pre-cast concrete pile design. By analyzing SPT boring data and incorporating real-time PDA testing results, the team refined the foundation design calculations, leading to a more efficient and cost-effective solution that reduced both construction time and costs.
Professional Development Hours (PDHs)
Each webinar in the series provides 1.5 Professional Development Hours (PDHs) to registrants who have paid the $70 fee. Certificates will be generated after the registrant completes the webinar evaluation through the event module. To receive a certificate you MUST register independently, be paid in full, and login and view the webinar for the duration of the event.