Seminar Program* | Day One | Thursday, June 19 7:30 - 8:00 am 7:30 - 8:30 am 8:30 - 8:45 am 8:45 - 9:15 am Registration | President’s Ballroom A/B Prefunction n Speakers’ Preparation | President’s Ballroom A/B Networking Breakfast and Exhibition | President’s Ballroom C/D Welcome and Introduction | President’s Ballroom A/B Les Chernauskas, P.E., Geosciences Testing and Research and Kwabena Ofori-Awuah, P.E., KCI Technologies, Inc. Emergency Foundation Repairs to the Leo Frigo Memorial Bridge: QA/QC Challenges and Solutions | Bernie Hertlein, GEI Consultants In 2013, the Leo Frigo Memorial Bridge, a critical link in Green Bay’s interstate highway network, suffered settlement of 2 feet along a 400-foot long bridge span. The emergency assessment and repair plan involved constructing 20 drilled shafts adjacent to the settled pier foundations with an expedited construction schedule. This presentation will highlight the challenges posed by the adverse ground, access and weather conditions and 24-hour shift working conditions, and the QA/QC program that was critical to meeting the repair schedule. 9:15 - 9:45 am Design Challenges of the High Capacity Piles for Support of the New NY Bridge Steven Spink, P.E. and Robert Palermo, P.E., GZA GeoEnvironmental, Inc. Two multi-span, 3.1 mile long bridges are currently under construction to replace the existing 60-year old Tappan Zee Bridge that crosses the Hudson River in New York. The geology at the site generally consists of a thick deposit of soft, organic soils overlying glacial lake varved clays up to 500 feet in thickness. High capacity deep foundations consisting of a combination of end bearing and friction piles will be used to support the new bridge superstructure. An overview of the project will be presented along with a summary of the challenges associated with the design of the high capacity piles, the requirements of the extensive pile load test program and related construction constraints. 9:45 - 10:15 am High-Capacity Drilled Minipiles Go Biomedical |Michael Atwood, P.E., Haley & Aldrich, Inc. | Anthony Barila, P.E., HUB Foundation Co. A 15-store addition to the Broad Institute medical facility in Cambridge, MA, involved rock-socketed drilled shafts and drilled minipiles (DMPs). The high-capacity DMPs were installed from within the lowest level of the parking garage to support new heavily-loaded columns. This presentation will focus on the DMPs and will summarize and discuss the design, construction (including load testing), and contracting solutions used to overcome challenges presented by the heavily loaded columns and site constraints. 10:15 - 10:45 am Networking Break and Exhibition | President’s Ballroom C/D 10:45 - 11:15 am Maximizing Allowable Vertical Stress on H-Piles at UMass Boston | Heather Scranton, P.E. and Mark Haley, P.E., Haley & Aldrich, Inc. The presenters will review the design, installation and testing of approximately 190-foot-long, end bearing H-piles for the University of Massachusetts General Academic Building No. 1 project. The required ultimate capacities of 520 to 720 tons were greater than twice the allowable design capacities to account for significant downdrag loads of 100 to 200 tons. Dynamic and static testing will be discussed along with interesting construction aspects encountered during hammer and coating selection and pile installation. 11:15 - 11:45 am Design and Load Testing of Drilled Shafts for the Muddy River Flood Reduction and Restoration Project | Boston, MA Mike Muchard, P.E., Applied Foundation Testing The Muddy River Flood Reduction and Environmental Restoration project in Boston involves installation of new 24-ft wide drainage culverts and bridges supported by 3-ft diameter drilled shaft foundations. The load test program developed by USACE and Applied Foundation Testing consisted of Statnamic testing of five test shafts. Each test shaft was instrumented with strain gages to measure the side shear and end bearing load distribution, and results were used to verify design assumptions and complete final design of the production drilled shafts. 11:45 am - 12:15 pm Structural Integrity Evaluation of Cast-In-Situ Deep Foundation Elements by Means of Thermal Integrity Profiling Method Anna Sellountou, Ph.D., P.E., Pile Dynamics Inc. The Thermal Integrity Profiling (TIP) method is a newly developed non-destructive testing (NDT) method that is based on temperature measurements as a function of depth during the curing stage of a concrete shaft. TIP can be used to assess the structural integrity of the entire cross sectional area of the deep foundation element (both inside and outside the reinforcing cage) through collection and interpretation of temperature measurements and generation of shaft profiles. Case studies will be presented that compare the TIP method with other current state-of-practice NDT methods for drilled displacement piles, ACIP Piles, and drilled shafts. 12:15 - 1:15 pm 1:15 - 1:45 pm Networking Lunch | Riverside Pavilion n Exhibition | Presidential Ballroom C/D Drilled Displacement Pile Performance in Coastal Plain and Residual Soil | Morgan Nesmith, P.E., Berkel & Co. Contractors Inc. This case history will describe the use of drilled displacement (DD) piles on a recent design-build project. Approximately 1000 partial displacement DD piles were installed to support column compression loads of 200 to 350 tons on pile caps and large mats up to 30 feet below grade. The presentation will highlight the performance of the piles in the Coastal Plain sands and overlying residual soils and rock of the Piedmont Physiographic Province and tooling adjustments required to install the piles into the residual soils. 1:45 - 2:15 pm The Use of Spin FinTM Piles in Offshore Structures | Leo Hart, Geosciences Testing and Research, Inc. Spin Fin piles are traditional pipe piles fitted with flat, steel plates (“fins”) attached at a slight angle over the lower few feet of the pipe. Spin Fin piles can develop high capacity in relatively shallow penetration as compared to pipe piles, which translates into cost savings and more rapid installations with smaller/more efficient equipment. This presentation describes the experience of using Spin Fin® piles on several recently completed Steam Ship Authority offshore projects. 2:15 - 2:45 pm Pore Pressure Buildup and Dissipation in Cohesive Soils due to Driven Pile Installation and its Relationship to Pile Setup Ed Hajduk, D.Eng, P.E., University of Massachusetts Lowell By understanding the relationship between excess pore pressure buildup and dissipation, the resulting time dependent pile capacity gain (commonly known as pile “setup” or “freeze”) can be accounted for in pile design. This presentation provides an overview of the phenomena of pile set up and the resulting pile capacity gain. Case history data from several driven pile projects and a methodology for planning for pile “setup” in driven pile projects are also presented. 2:45 - 3:15 pm Case History: Test Drilled Shaft Foundations for the Louisville – Southern Indiana Ohio River Bridges John Reinfurt, P.E., Jacobs Engineering Group This case history describes the drilled shaft foundation testing for the new Louisville-Southern Indiana Ohio River Bridges. Full-scale, bi-directional static load tests and a statnamic lateral load test were performed to verify the design and allow the use of higher resistance factors. This presentation will discuss the construction of the load test shafts, details of the load testing programs, and a comparison of the test results. 3:15 - 3:45 pm 3:45 - 4:45 pm 5:00 - 7:00 pm Networking Break and Exhibition | President’s Ballroom C/D Panel Discussion: Frequently Encountered Code Issues (IBC and AASHTO) | President’s Ballroom A/B Meet and Greet Reception and Exhibition | President’s Ballroom C/D *Program and Speakers are subject to change. DEEP FOUNDATIONS • MAY/JUN 2014 • 5
