Geotechnical Institute (GI)

Upcoming events

    • 19 Sep 2017
    • 6:00 PM
    • Gaetano's Banquet Center, 1617 Banksville Rd, Pittsburgh, PA 15216

    Geopier Rammed Aggregate Pier Applications & Regional Case Studies

    Presented By: Keithe J. Merl, P.E., Geostructures Inc.


    Rammed aggregate pier systems are a ground improvement technology that can be used to increase bearing capacity and control settlement of buildings, tanks, Retaining walls and embankments to close tolerances. Depending on site requirements, RAP systems can be installed using replacement (Geopier GP3®) or displacement (Geopier Impact®) methods. RAP systems are used to reinforce good to poor soils, including soft to stiff clay and silt; loose to dense and; organic silt and peat; variable, uncontrolled fill; and soils below the ground water table. They can be used as an alternative to deep foundations or over-excavation, and provide cost and time savings on sites where poor soils and/or existing undocumented fill are a concern in terms of bearing capacity and settlement. This presentation reviews fundamental Geopier design and construction techniques and includes regional case studies such. Projects discussed include the Penguins Arena and various projects in the strip district.

    Keithe Merl is responsible for sales, business development, and technical Engineering support in the Northeast Region (Pennsylvania, Delaware, New Jersey, and New York). Keithe’s 16 years of experience in related disciplines of Geotechnical, Environmental, and Geologic Engineering includes an extensive working knowledge of all facets of civil, industrial, and commercial projects. His strong technical experience in conjunction with his understanding of the complex inter-workings of the regulatory process provides our clients with in-depth knowledge and unique problem solving recommendations leading to successful project completion. Keithe has a B.S. in Civil Engineering from Drexel University.

    Questions: Mr. Vishal Patel @ vpatel@agesinc.com

    PDF Flyer

    • 19 Oct 2017

    Dinner meeting with Martin Derby presenting "Performing GeoHazard Assessments for Infastructure"

    More details coming soon

    • 30 Nov 2017

    Annual Terzaghi Lecture presented by Kerry Rowe

    More details coming soon.

    • 15 Feb 2018
    • 5:00 PM
    • TBD

    More information and registration details coming soon.

Past events

19 Apr 2017 Geo-Institute/PGS Student Night
08 Apr 2017 GI / DFI: Annual Short Course: Augered Cast-in-Place and Drilled Displacement Piles
23 Mar 2017 GI/DFI Joint meeting - Communication Gap: Skills for Bridging the Gender Divide
23 Feb 2017 GI Dinner: New Baltimore Landslide
18 Jan 2017 GI/PGS Joint Meeting: Slurry-Supported Excavations for Environmental and Geotechnical Applications
08 Dec 2016 How Hydraulic Fracturing Changed an Industry and How Research is Changing Hydraulic Fracturing
19 Oct 2016 2016 Karl Terzaghi Lecture: Ground Deformation Effects on Subsurface Pipelines and Infrastructure Systems
23 Sep 2016 Geo Institute: 2014 OSO Landslide - Initiation and Flowslide
20 Apr 2016 PGS / AEG / ASCE Student Night
02 Apr 2016 Geo-Institute Short Course: Stability of Natural and Man-Made Slopes: Anaysis, Shear Strengths, Testing, Stability Methods, and Stabilization
17 Mar 2016 EWRI / GI Joint Dinner Meeting
25 Feb 2016 Geo-Institute: Cross USA Lecture
20 Jan 2016 Geo-Institute Dinner Meeting
17 Dec 2015 Webinar: Introduction to Rock Mechanics
19 Nov 2015 Fixing the Crack in Wanapum Dam: Geo-Institute Dinner Meeting
29 Oct 2015 2015 Terzaghi Lecture
24 Sep 2015 Investigation and Treatment of a “Swallvette” | Sinkhole Remediation at the National Corvette Museum
25 Apr 2015 Geo Institute Short Course - Deep Foundations: Selection, Design, Construction
26 Mar 2015 G-I Meeting
26 Feb 2015 Engineering Ethics in Permitting: How Far Must an Engineer Go? - Hosted by the Geo-Institute
21 Jan 2015 Joint Geo-Institute/Pittsburgh Geological Society (PGS) Meeting
18 Nov 2014 Cross-USA Geo-Institute Lecturer
23 Oct 2014 2014 Terzaghi Lecture - Energy Geotechnology: Enabling New Insights into Soil Behavior
10 Sep 2014 2014 Jahn's Lecture - Dr. Gregory Hempen
17 Apr 2014 Geo-Institute & DFI Joint Meeting and Special Lecture: Impact Load Tests for Embassy Protection Against Terrorists
29 Mar 2014 Recent Advances in the State-of-Practice of Ground Modification
24 Feb 2014 Seismic Modeling & Applications of FD Modeling to Rock Physics and Geomechanics: Joint PGS/Geo-Institute Meeting
23 Jan 2014 Geotechnical Design Services in the Marcellus Shale Gas Play
14 Nov 2013 Rehabilitation of the Thorn Run Dam
03 Oct 2013 Terzaghi Lecture: Geoenvironmental Engineering - Problems Solved and Challenges Remaining
17 Apr 2013 AEG/PGS/ASCE 11th Annual Student Night
27 Mar 2013 Factors Influencing Water Discharges From Pennsylvania Underground Coal Mine Pools
30 Jan 2013 Geologic Overview of Appalachian Shale Natural Gas Plays (Or...Why Here? Why Now?)
03 Nov 2012 Applications of Geotechnical Instrumentation
18 Oct 2012 The History and Progression of Rock Slope Stabilization for Menoher Boulevard (aka Easy Grade Highway or S.R. 271, Section 13)
19 Apr 2012 Terzaghi Lecture - Seismic Measurements and Geotechnical Engineering
15 Mar 2012 Remediation of Deep Seated Abutment Movement, Nesbitt Dam, Lackawanna County, PA
19 Jan 2012 Marcellus Shale Environmental & Geotechnical Impacts
15 Dec 2011 Design-Build Support of Excavation for City Creek Center
10 Nov 2011 Micropile Application - Three Mile Island
15 Oct 2011 Short Course: Application of Geophysics to Geotechnical Problems
10 May 2011 Geotechnical Applications of Geofoam
06 Apr 2011 Geotechnical Considerations in the Rebuild of Taum Sauk Upper Reservoir Dam
07 Mar 2011 Reinforced Soil Technology: From Experimental to the Familar
11 Nov 2010 Vertical Hydraulic Barriers
23 Oct 2010 Analysis and Design of Foundations On and In Rock
23 Sep 2010 Soil Improvement Methods With Geosynthetics
17 Jun 2010 Geotechs 2010: Past, Present and Future of Geotechnical Engineering in the Pittsburgh Region
10 Apr 2010 POSTPONED: Analysis and Design of Foundations On and In Rock
15 Oct 2009 GEOTECHNICAL CONSTRUCTION AT WORLD TRADE CENTER NYC: MICROPILES, DIAPHRAM WALLS, JET GROUT, AND ANCHORS
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