DFI Magazine May/June 2020 - 32

SuperPile '20 | Virtual Conference Schedule* | Day One | Thursday, June 18
11:00 a.m. - 11:05 a.m.
11:05 a.m. - 12:35 p.m.

Conference Introduction

Lyle Simonton, P.E. | Subsurface Constructors Inc.

Geotechnical Baseline Reports

Geotechnical and legal experts will discuss the meaning, benefits, and challenges of using a Geotechnical Baseline Report (GBR) for foundation projects.
A GBR is a concise document developed by the design team and the project owner based on geotechnical data reports, previous experience, and engineering
judgment. The GBR provides a contractual representation of the anticipated underground conditions for the project and fairly allocates the risk from the
subsurface uncertainties between the owner and the contractor. GBRs were developed for and are used mainly for tunneling and underground structures,
and this panel will discuss their potential use in preventing or resolving disputes for foundation projects.

12:35 p.m. - 12:40 p.m.
12:40 p.m. - 12:45 p.m.
12:45 p.m. - 12:50 p.m.
12:50 p.m. - 1:20 p.m.

BREAK
Welcome Back

Paul Axtell, P.E., D.GE | Dan Brown and Associates, PC

DFI Women in Deep Foundations Committee - New Video Release

Helen Robinson, P.E., D.GE | GEI Consultants, Inc.

The Incremental Rigidity Method - More-Direct Conversion of
Strain to Internal Force in an Instrumented Static Loading Test
Van Komurka, P.E., D.GE, F.ASCE | GRL Engineers

The Incremental Rigidity (IR) method can be used to determine the relationship between axial rigidity and strain at individual strain gage levels. From this
relationship, measured strains can be converted to internal forces without having to know either a deep-foundation element's elastic modulus or its crosssectional area. The IR method for converting strain to internal force in an instrumented static loading test is presented, including assumptions, uncertainties,
limitations, and best practices highlighted with case histories.

1:20 p.m. - 1:50 p.m.

Pipe Piles in Plastic Soils: Effect of Installation Activities on
Side Resistance

Steve Saye, P.E. | Kiewit Infrastructure Engineers

Pile installation methods influence measured side resistance of driven pipe piles bearing in plastic soils. Construction influence factors to modify a SHANSEPbased side resistance method calculation to consider and estimate the influence of specific pile installation actions on the resulting calculated pile capacity
are suggested.

1:50 p.m. - 2:20 p.m.

Impact of Heave on Permanently Cased Drilled Shaft Axial Capacity in Sand

Glen Bellew, P.E. | USACE-Kansas City District

Heave occurred during construction of a permanently cased drilled shaft in an alluvial deposit. The shaft was load tested to failure and, as expected, it
experienced axial failure at a load significantly lower than the originally predicted ultimate capacity of the shaft. A subsurface investigation was conducted
within days of the load test to better understand the impacts of heave on soil conditions in the immediate vicinity of the test shaft and evaluate the apparent
effects of heave on the permanently cased shaft.

2:20 p.m. - 2:25 p.m.
2:25 p.m. - 3:25 p.m.

Closing Remarks

Theresa Engler | Executive Director, DFI

Networking Happy Hour with Trivia Game

Hosted by ICE®- International Construction Equipment, Inc.

32 * DEEP FOUNDATIONS * MAY/JUNE 2020

*Subject to Change

DFI Magazine May/June 2020

Table of Contents for the Digital Edition of DFI Magazine May/June 2020