Join the ASCE Geo-Institute Virginia Chapter for an evening of networking, professional education, fine dining, election of officers and updates on the upcoming Geo-Virginia Conference.
ONLY 24 spots available.
TECHNICAL PRESENTATION TOPIC – LRFD FOR MICROPILES (1 PDH)
Speaker: Jonathan Bennett, PE, D.GE
Load and Resistance Factor Design (LRFD) is the predominant design method utilized today for reinforced concrete and structural steel, and is the primary focus of the AASHTO LRFD Bridge Design Specifications. Historically, micropile design has been performed mainly with Allowable Stress Design (ASD) methodologies, and most of the micropile design manuals and specifications in existence prior to 2008 were based on ASD.
In light of this history of ASD design methodologies, and in spite of the widespread use of LRFD in general structural design disciplines, there have been a number of questions and a great deal of confusion regarding the proper use and implementation of LRFD design methodologies for micropiles. The author, as part of a DFI / ADSC Joint Micropile Committee initiative, developed a presentation in response to these questions and issues which covers the fundamentals of LRFD as it applies to micropiles, and provides an illuminating comparison with ASD methodology.
This paper is a formalized and updated snapshot of the current State of Practice of LRFD for Micropile Design based on the most current information and design codes relevant to micropiles. It will describe the fundamentals of Load and Resistance Factor Design (LRFD), demonstrate micropile design and testing utilizing LRFD, compare the results with historical ASD design, point out the limitations of current LRFD practice relative to micropiles, and finally map out the path forward with regard to proper implementation of LRFD as a true reliability based design methodology for the design of micropiles.
(June 4 ,2018) Specialty geotechnical contractor Axiom Foundations is pleased to welcome Jonathan Bennett, PE, D.GE as Mid-Atlantic Regional Manager. Jon has over 25 years of experience, focused primarily on design / build geotechnical construction and business development. He holds a Master’s degree in Engineering and Technology Management from George Washington University, Master’s and Bachelor’s degrees in Civil Engineering from West Virginia University, and is a Licensed Professional Engineer in Virginia, West Virginia, Maryland and Pennsylvania. He was inducted into the ASCE Academy of Geo-Professionals in 2009. A consummate professional, Jon brings the highest levels of dedication and client service to every project as well as being a leader in the ground engineering community at large.
Jon will be spearheading pursuits in the Mid-Atlantic region of the United States and will be focused on helping customers solve their geotechnical construction challenges with all the products and services that Axiom Foundations brings to the market.
Jon’s contact information is:
Jonathan Bennett, PE, D.GE
(304) 707-4840 Mobile
October 24-27, 2018
Anaheim, CA, USA
Mastering the Challenge:
Engineering for Complex Loading Conditions in the 21st Century
The Call for Abstracts deadline has been extended by one week from December 15, 2017 to December 22, 2017 so if you haven’t submitted an Abstract already, you have a little more time to do so. Details below taken from the DFI Call for Abstracts document.
This conference will feature technical presentations on innovations and advancements that address performance based design and construction of foundations subject to increasingly challenging structural demands. The 2018 Conference will provide an international forum for a wide range of geo-professionals to present, discuss, and debate all aspects of assessment, development, design and mitigation for complex loading conditions in the 21st Century. A number of sessions will be dedicated to panel discussions in which invited specialists will interact with the audience to examine pressing issues in foundation industry practices.
Abstracts for technical papers and panel sessions can be submitted at www.dfi.org/annual2018, no later than Friday, December 22, 2017. All accepted papers will be published in the Conference Proceedings, and select papers will be presented orally by the author during the appropriate technical session. Proposals for panel sessions are welcomed and encouraged.
Abstracts for papers are welcomed on the following topics:
• Risk Assessment and Mitigation
• Lessons Learned (Case Histories / Innovations / Forensic Work)
• Seismic Design / Soil Structure Interaction / Lateral Loading
• Performance Based Deep Foundation Design
• Ground Improvement
• Innovation Techniques for Earth Retention and Stabilization
• Advancements in Instrumentation and Monitoring
• Analysis, Design and Construction for Extreme Events
• Mega Projects (Projected Work / Risk Mitigation / Contractual Aspects)
• Constructability Issues and Design Aspects
• Other Deep Foundations-Related Topics
Paper format guidelines are available on the Submission Website www.dfi.org/annual2018 and by request from DFI Headquarters. For inquiries, send an email to firstname.lastname@example.org.
If you haven’t visited the Micropile Design and Construction website (micropile.org) for a while, you are in for a surprise! For the first time since its inception in 2009, the site has received a much needed extreme graphical makeover. We’ve updated our website theme and ensured that it is responsive across the various devices out there today. We are really pleased with the new site!
Let us know what you think and if you have any particular topics of interest that you want to see covered in the future. Micropile Design and Construction is committed to providing the highest quality and most practical information on micropiles available in the industry. Exciting things to come in 2018, Stay tuned!
Check out the Facebook Page associated with the website as well at www.Facebook.com/Micropiles and give us a big LIKE!
Thank you for stopping by the Moretrench booth at the 29th Central PA Geotechnical Conference in Hershey, PA last week! This was the most successful year to date, with more than 450 attendees. We look forward to being there again next year and hope to see you then. Meanwhile, if we can be of assistance in any way, please contact Jon Bennett at email@example.com or (304) 707-4840 for help in solving your Deep Foundations and Geotechnical Construction challenges.
(November 3, 2016) Moretrench is pleased to welcome Jonathan Bennett, P.E., as Business Development Manager for the Mid-Atlantic and Midwest regions. Jon has 25 years of experience focused primarily on deep foundations, earth retention and other geotechnical construction specialties, as well as extensive business development experience. He holds a Bachelor’s degree in Civil Engineering from West Virginia University, Masters degrees from George Washington University and West Virginia University, and is a Licensed Professional Engineer in Virginia, West Virginia, Maryland and Pennsylvania. Jon regularly shares his knowledge and expertise with the engineering community at large through professional organization committees and boards. A consummate professional, he brings the highest levels of dedication and service to each client, making it his mission to provide the optimal solution for the site-specific geotechnical challenges.
“We are extremely pleased to have Jon on board. He brings a tremendous amount of experience, expertise, and relationships to Moretrench. He can handle any responsibility, from design to estimating to project management. He is also a fantastic cultural fit: he is a team player, a real collaborator, and a pleasure to work with. He is always concerned about doing the right thing, both for the client and the company. With Jon’s capabilities, we can all look forward to tackling some really challenging work!”
Paul C. Schmall, Ph.D, PE
Vice President, Chief Engineer
Visit our website at: www.moretrench.com for additional information.
I saw a post recently where a company was advertising Ductile Iron Pipe Piles as “Micropiles”. I don’t consider ductile iron piles to be micropiles for the simple reason that they don’t fit the definition of a micropile. If you look back to our post on micropile definitions, you will see that micropiles are drilled and grouted “replacement piles”. Ductile iron piles are not replacement piles. They are driven, grouted “displacement” piles.
A friend of mine from north of the border told me once that “the Americans get all bent out of shape when somebody calls a helical pile (or ductile iron pile) a micropile.” Does it matter? I think it does. You would probably look at me funny if I called a car a truck. But thats just me.
Anyway, don’t get me wrong, I love ductile iron piles. I just don’t consider them micropiles. If you need to get into rock, you wont be able to do it with a ductile iron pile but you can with a good old Micropile. They are great in soil though…