DFI Magazine January/February 2020 - 63

Deep Foundations for Landslides and Slope Stabilization
Chair: Chris Ramsey, P.E., Wood Environment & Infrastructure
Solutions chris.ramsey@woodplc.com
Trustee Liaison: J. Erik Loehr, Ph.D., P.E., University of
Missouri, eloehr@missouri.edu
* Planning the S3: Slopes, Slides and Stabilization Conference,
August 4-6, 2020, in San Francisco, including the software
discussion webinar series.

Chris Ramsey

Erik Loehr

Paul Axtell

* Performing comparison of geotechnical factors of safety for
landslide/slope stabilization repairs, gathering data and
determining form of presentation.
* Preparing a DFI Journal issue with papers specific to deep
foundations for landslide/slope stabilization topics.

Drilled Shaft

James Johnson

Pollyanna Cunningham

Dan Brown

Chair: Paul Axtell, P.E., D.GE, Dan Brown and Associates,
paxtell@dba.world
Trustee Liaison: James O. Johnson, Condon Johnson and
Associates, jjohnson@condon-johnson.com
* Collaborating with the European Federation of Foundation
Contractors (EFFC) on the 2nd edition of the Support Fluid
Guide. Currently collecting information from actual
construction sites.
* Finalizing DFI Committee Project Fund research project,
Rock Socket Shear Force Magnitude. The final report is
expected to be published in the DFI Journal by researcher
Anne Lemnitzer, Ph.D., P.E., University of California, Irvine.
* Reviewed the FHWA Drilled Shaft Manual, Geotechnical
Engineering Circular 10 (2018). The associated drilled shaft
training course offered by the National Highway Institute
(NHI) is also being updated and should be deployed soon.
* Planning to review the FHWA Geotechnical Engineering
Circular 15 pertaining to the acceptance of structural
foundations when it is made available.
* Reviewed and helped develop the recently published white
paper on crosshole sonic logging (CSL) terms and criteria.
* Contributing to drilled shaft sections of the DFI Electric
Power Systems Foundations Committee's white paper on the
state of the practice for foundation design in the electrical
structure market.
* Researchers Lemnitzer and Kyle Rollins, Ph.D., Brigham Young
University, are conducting a research project on updating p-y
curves, including assembling case studies and implementing
them in LPILE and other software for parametric studies.

Driven Pile
Chair: Pollyanna Cunningham, M.B.A., International
Construction Equipment (ICE®), pcunningham@iceusa.com
Trustee Liaison: Dan Brown, Ph.D., P.E., D.GE, Dan Brown and
Associates, dbrown@dba.world

Peter Kandaris

Steve Davidow

Howard Perko

* Evaluating the state of the practice for determining the
development of a soil plug in open-end pipe piles during pile
driving. The committee is supporting a study that examines
the plugging traits of open-end piles less than 36 in (914
mm) in diameter. Ryan C. Allin, P.E., and Sam Sternberg III,
P.E., D.GE, are the committee liaisons for this project.
* In December 2019, a subcommittee began work on writing a
guide, "What to do before the project/pile driving begins?," to
best assist engineers and construction teams on site.
* Exploring vibration prequalification course/guidelines.
* Inviting guest speakers for most committee meetings to deliver
20-minute presentations on driven pile news, technical
updates and more. Please submit an abstract to the chair to
propose a presentation.

Electric Power Systems Foundations
Co-Chairs: Peter Kandaris, P.E., DiGioia Gray & Associates,
pkandaris@digioiagray.com and Steve Davidow, P.E., S.E., P.Eng.,
Quanta Subsurface, sdavidow@quantasubsurface.com
Trustee Liaison: Howard Perko, Ph.D., P.E., Magnum Piering,
hperko@magnumpiering.com
* Chris Love, Con-Tech Systems, has agreed to serve as the
committee's secretary.
* Held fall committee meeting at the DFI Annual Conference,
which was the best attended ever (39 in the room and joining
via phone).

DEEP FOUNDATIONS * JAN/FEB 2020 * 63
DFI Magazine January/February 2020

Table of Contents for the Digital Edition of DFI Magazine January/February 2020
