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Group Delta Consultants is a California geotechnical engineering firm that has quite a resume of mega projects under their belt, from dams to bridges to subway stations and lines. Their CEO, Mike Reader (a University of Arizona alumnus from my old department, Mining and Geological Engineering, go Cats!) is hosting a series of videos highlighting some of their projects. They call it GDCTV. Their first episode on the Metro Regional Transit Connector Corridor Project in Downtown Los Angeles is embedded below. You can find out more about their projects on their website too. [Source: Group Delta YouTube Channel. Image: YouTube]
The Ohio DOT Division of Engineering, Office of Geotechnical Engineering, has a new procedure for pre-approval of prefabricated retaining wall systems (PWRS). In an announcement from back in April, they indicate that all wall system vendors will need to provide a detailed submittal for review and approval by ODOT. Those systems that are successful at getting on the approved products list will have to re-apply every 5 years. And all of the existing systems on the list that were approved prior to April will need to re-submit for approval since their status on the list will expire at the end of 2016. [Source: Ohio DOT OGE. Image: Redi-Rock International]
DeWind One-Pass Trenchers can install Mixed in Place Soil Bentonite, or Soil Cement Bentonite Walls up to 125' deep. Their powerful trenchers can homogenize all of the native soils with various additives. The mixing paddles rotate at 14 feet per second hyper-mixing everything in the column from top to bottom in a continuous evenly mixed wall. [Source: YouTube. Image: YouTube]
Geotechnical software company, Deep Excavation, LLC has just announced a new software product for design of deep foundations. The product page for DeepFND notes that it brings together geotechnical design and structural design of deep foundations in one complete package. It includes both axial and lateral analysis of a variety of deep foundations, including drilled shafts, driven piles of various types, continuous flight auger piles (CFA Piles), micropiles, and even helical piles (if you opt for the premium version). Something quite unique is the fact that they have included the ability to interpret and process load test data. I look forward to taking advantage of the free trial to give this program a try. It is priced pretty reasonably, starting at $900 (US). [Source: Check out the DeepFND Page at Deep Excavation's website. Image: Courtesy of Deep Excavation, LLC]
Every second of October, geotechnical engineers around the world remember Karl Terzaghi on his birthday! Terzaghi is the father of soil mechanics, and I don't think it is cliche to say he is also the father of our profession. So happy KTB 2016!
I always like to celebrate by reading some of his quotes, many of which seem like they could have been written to us today…like this one:
The one thing an engineer should be afraid of is the development of conditions on the job which he has not anticipated. The construction drawings are no more than a wish dream. I have the impression that the great majority of dam failures were due to negligent construction and not to faulty design.
The Board of Directors for Geosyntec Consultants, Inc. has elected Peter Zeeb, Ph.D., P.G., LSP, as President & CEO of the firm. Zeeb succeeds Rudolph Bonaparte, Ph.D., P.E., F. ASCE, NAE, who has served in that role for the last 20 years.
"Healthy succession planning and implementation are vital to the long-term multi-generational success of our firm. Our CEO transition is part of a continuous process designed to maintain the vitality, competitiveness, and independence of our firm for many years to come. Peter has demonstrated his passionate and complete commitment to the success and well-being of our firm and its employees in his 17 years with Geosyntec," said Bonaparte. "The Board elected Peter because his personal values and ethics are superb and consistent with the firm's mission and vision. An expert practitioner, his personal career also embodies our sell-manage-do culture, and he is a role model that motivates and inspires those around him. Peter's ability to think in an analytical, thoughtful, and clear-minded way and to logically and decisively evaluate and address opportunities and challenges gives the Board confidence he will continue Geosyntec's tradition of technical and client service excellence."
[Editor] Click through for the rest of the press release from Atlanta-based Geosyntec [/Editor]
RockWare Software recentl released an updated to their RockWorks software package popular with geotechnical and geological professionals. There are a host of new features. You can read about them on their new features page, or check out the video below. [Source: RockWare YouTube Channel. Image: YouTube]
The tunnel liner that is being placed by the Bertha tunnel boring machine consists of precast concrete segments. This video by the WSDOT shows how they are made at the casting yard, and what Bertha does with them once they get delivered to her where the action is happening. The finished tunnel will consist of over 14,000 of these precast segments! [Source: WSDOT YouTube Channel. Image: YouTube]
This kind of thing is like geo-porn for some of us! You might want to turn down or mute your speakers though, the background music is a little jarring at first. [Source: Maccaferri YouTube Channel. Image: YouTube]
Joel Carson, the Executive Director of the Geoprofessional Business Association (GBA), recently announced the association's new website. It's a great tool to deliver the excellent resources and information that the GBA makes available to member firms and the industry in general. Did you know that membership is at a firm-level? If your firm is a member, you are a member. You just need to register for an account on the website using your company email address, and you will have access to all of the great resources the GBA has put together. [Source: Visit the GBA's new website. Image: Fusionspan]
I will be the guest speaker at an EagleLIFT, Inc. webinar this Friday, September 16, 2016, from 11am-12pm MST titled: "Geotechnical Aspects of Polyurethane Grout". I spoke on this topic about a year ago, but if you missed it then, I hope you can attend! Register at: http://eaglelifting.com/webinar/
I am not affiliated with EagleLIFT or URETEK (although, full disclosure, URETEK ICR is a GeoPrac.net sponsor), but I do consider myself a fan and evangelist of their geotechnical polyurethane products and service. I will be discussing their polyurethane grouting technology from a geotechnical engineer’s perspective. I will cover the modes of ground improvement, improvements in shear strength, and some of the challenges associated with geotechnical characterization. I hope you can make it!