Association of Environmental & Engineering Geologists
D.C. – Maryland – Virginia Chapter (www.aeg-bwh.org)
Thursday, February 21, 2019, from 5:00 PM to 8:00 PM at Brewer’s Alley in Frederick, MD.
AEG Members $40, Non-members $45; Includes dinner. Student and retiree member discounts available). Please register by Monday, February 18, via online payment (http://www.aeg-bwh.org/e-pay).
Presenters: Patrick T. Hastings, C.P.G. and David K. Miller, C.P.G.; Seismic Surveys, Inc.
Title: Vibrations from Driven Piles
Driven piles for deep foundations are an economical and effective method for supporting structures in challenging geologic conditions. Quite often, this foundation method is necessary in congested areas with existing structures, that must be protected from damage, nearby. Pile driving is safely conducted every day near existing structures; however, ground vibrations are a by-product of this pile installation method and they must be controlled to minimize the risk of damage to nearby structures and to defend against unwarranted claims. This presentation discusses the types of vibrations from various driving methods, why these vibrations are a concern, industry standards for controlling vibrations to below damaging levels, liability protection measures, and prediction of vibration effects before driving piles.
Patrick T. Hastings, Jr., C.P.G. is a Senior Geophysicist/Project Manager with Seismic Surveys, Inc. Patrick has his M.S. in Geology and Geophysics from University of Minnesota at Twin Cities. His did his undergraduate studies in Geology at University of Michigan at Ann Arbor. He is a Certified Professional Geologist in Virginia. Since 2013, he has specialized in the field of Blasting Seismology with Seismic Surveys, Inc. in Frederick, MD. His expertise includes vibration and sound monitoring and control, pre- and post-construction structure inspections, and use of geotechnical and structural instrumentation.
David K. Miller, C.P.G. is the President/Principal Geologist of Seismic Surveys, Inc. David has his B.S. in Geology from University of Maryland. He is a licensed Professional Geologist in Florida, New York, Pennsylvania, South Carolina, and Virginia. Since 1989, he has specialized in the field of Blasting Seismology. He founded Seismic Surveys, Inc. in Frederick, MD in 2001.
**Special Presentation: State of AEG by Dave Fenster, AEG National President
Dave Fenster will provide an informal update on the “State of AEG” and plans for the future. He would like to have a discussion and gather feedback from members on their priorities regarding improvements to AEG.
Please refer to our meeting announcement for full details (https://mailchi.mp/03f086ed018c/aeg-dmv-meeting-thurs-feb-21-2019).