june 1, 2021
11:00 AM - 1:00 PM EdT
pdca 2021 education webinar series
11:00 AM - 1:00 PM EDT
Optimizing the Design of Driven Pile Foundations with Instrumented Static Load Tests
Peter Narsavage, P.E., Senior Geotechnical Engineer, E.L. Robinson Engineering
Two large bridges over the Great Miami River in Dayton, Ohio, were recently constructed. The foundations for these bridges consist of driven piles, and the foundation design was optimized for the least cost given the constraints of the site conditions and pile drivability. Over 40 different possible combinations of pile diameter, pile wall thickness, pile capacity, and pile hammer were considered during design, including open ended piles. Cost factors included material costs for steel and concrete including length surcharges over 50 ft, crew and equipment time and costs to unload and drive the piles, and time and material costs for splices. Foundation costs were compared on cost/ton basis. The selected pile design was a 16-inch pipe pile with a nominal resistance of 600 kips, which exceeded the state DOT's standard maximum nominal resistance of 450 kips for this size pile. During construction, two instrumented static load tests and many dynamic load tests (PDA with CAPWAP) were performed to evaluate the selected foundation design and the results used to further refine the foundation design.
The objective of the webinar are:
- Efficient pile design must consider the pile properties, the soil properties, and the pile driving equipment.
- Foundation systems should be compared based on cost per capacity ($/ton).
- The results from instrumented static load tests can be used to optimize a pile foundation design.
2 Easy Steps to Register:
- Click "Register Here" below to register within the PDCA site
- Get Approved through the Zoom platform! PDCA handles this step for you!
- PDCA Members - Complimentary
- PDCA Member Employees - Complimentary
- Non-Members - $100**
Sponsorships Available at the pdca store
Virtual webinars offer the opportunity for suppliers and organizations to get in front of customers, industry partners, contractors, and owners from across the country. Sponsorship offers the opportunity to highlight your company, increase brand awareness, gain visibility with targeted marketing to decision makers in the driven pile industry. PDCA is offering varied sponsor levels to meet the goals and needs of suppliers. Click HERE to select your preferred sponsor opportunity by clicking the drop down menu.