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San Francisco Millennium Tower Has Settled 16 Inches
Misrepresents actual foundation geometry. Photos show deep excavation to ne
New FHWA Soil Nail Manual Addresses LRFD, Hollow Bars
Good evening from Barcelona, Spain. I am witting to you because of I am le
Engineering Geologists vs Geological Engineers vs Geotechnic
Geological engineer from Spain (looking for job smiley geoengineer.martin@gmail
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Randy, While the UC Davis lab is impressive I believe the USACE Centrifuge
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[Updated] Watch the 57th Rankine Lecture from March 15 PDF Print E-mail
Written by Randy Post   
Tuesday, 14 March 2017 04:43

[Update March 16, 2017] If any of you tried to watch the lecture live on YouTube, I understand there were some technical difficulties.  The BGA even issued an appology via email.  But you can still watch the recorded version.  See below. [/Update]

Prof. Eduardo Alonso from UPC in Barcelona will be presenting this year's Ranking Lecture awarded by the British Geotechnical Association. You can live stream the lecture on YouTube starting at 1:25pm Eastern on Wednesday, March 15. Prof. Alonso will be presenting on the topic: Triggering and Motion of Landslides. [Source: Watch the lecture at the British Geotechnical Association YouTube Channel. Image: YouTube]

Last Updated on Thursday, 16 March 2017 01:03
 
Free Online Soil USCS Calculator PDF Print E-mail
Written by Randy Post   
Wednesday, 08 March 2017 22:49
Free Online USCS Soil Classification Calculator

The folks at Logiteasy.com have created a great little free online tool that will calculate a USCS soil classification (ASTM D 2487 / ASTM D 2488) based on the percentage of your components and fines type. It's drop dead simple to use with sliders and buttons. [Source: Use the tool for free at LogItEasy.com. Image: Logiteasy.com]

 
Underneath Seattle: Working Under Pressure to Keep Bertha Moving PDF Print E-mail
Written by Randy Post   
Wednesday, 08 March 2017 22:48

Every tunneling machine needs its cutting tools replaced every now and then. But the challenge is keeping a giant machine sharp while a wall of waterlogged earth looms in front. Welcome to the world of hyperbaric interventions, where crews used compressed air to stabilize the ground and safely complete this high pressure work. This video takes you 200 feet underground for a rare look at hyperbaric work inside Seattle’s SR 99 tunneling machine, Bertha. [Source: WSDOT YouTube Channel. Image: YouTube]

 
5 Steps to Maximize your gINT and HoleBASE SI Geotechnical Data Archive PDF Print E-mail
Written by Randy Post   
Monday, 27 February 2017 22:44
HAGDMS Screenshot

How do you get the most out of the geotechnical data your company or agency spent so much money to obtain? GeoPrac sponsor Keynetix is an expert at answering just that question, and their latest blog post has 5 great tips on how to maximize the use of your data. This is some very actionable stuff for geotechnical engineers, and a must read for anyone who works with subsurface data in gINT, HoleBase or other geotechnical software. [Source: View this interesting article from Keynetix. Image: Keynetix]

 
California Narrowly Averts Disaster at Oroville Dam PDF Print E-mail
Written by Randy Post   
Monday, 27 February 2017 22:43
February 12, 2017 image of water flowing over emergency spillway at Oroville Dam in California

Earlier in February severe rain caused the Oroville Dam in Sacramento to reach capacity. The dam is an earth fill dam approximately 770 feet high, making it one of the tallest dams of this type in the Country. On February 11, water began flowing over the emergency spillway, which prior to that point had never been used, and caused erosion at the base of the weir, threatening to undermine the wall at the top of the spillway and potentially cause a catastrophic failure of the dam. Local police officials ordered a massive evacuation of residents downstream of the dam. The dam didn't fail and this week flow across the main spillway was stopped to allow officials time to evaluate the damage. The LA Times article linked below has a good summary of many of the issues that led to this crisis. And this article discusses the most recent developments with the shutting off of the flow at the spillway to evaluate damage. [Source: Read more about the Oroville Dam at LA Times. Image: USA Today]

 
Top GBA Downloaded Resources in 2016 - GBA PDF Print E-mail
Written by Randy Post   
Monday, 27 February 2017 22:42
GBA Top Downloads of 2016

The Geoprofessional Business Association (GBA) compiled a list if their top downloaded resources from last year. You need to be a member to download them for free. But did you know that if your firm is a GBA member firm, you are automatically a member of GBA? You just need to register on the GBA site with your work address that matches the company domain name and you can download all of the resources for free! [Source: Check out the GBA Top Downloaded Resources. Image: GBA]

 
Catch-Up Post (CUP) Feb 9, 2017 PDF Print E-mail
Written by Randy Post   
Thursday, 09 February 2017 05:39

There is some great stuff in here for anyone interested in geotechnical news, geologic hazards, and geological and geotechnical aspects for projects around the World. Enjoy

Last Updated on Thursday, 09 February 2017 05:48
 
Video: Fascinating Geotechnical News in 2016 PDF Print E-mail
Written by Randy Post   
Wednesday, 08 February 2017 22:51

Our colleagues over at Geoengineer.org put together a great video compiling some of the more interesting stories of 2016 for all of us geotechnical nerds. Check it out! [Source: Geoengineer.org YouTube Channel. Image: YouTube]

 
Free On-line Coordinate Conversion Tools PDF Print E-mail
Written by Randy Post   
Wednesday, 08 February 2017 22:49
Mercator map projection

RockWare, the makers of RockWorks and LogPlot geotechnical software, have released a free online tool to convert between different coordinate systems. You can convert to and from State Plane coordinates using a NAD27 datum, and geographic latitude and longitude with a NAD83 / WGS84 datum using a pretty simple interface. There are probably a few other coordinate systems built in there as well. You can visualize your points immediately on a Google Maps interface. You can also plot up an elevation profile if you like. [Source: Convert your coordinates using Rockware.com's free tool. Image: Wikipedia]

 
Moretrench’s Wayne Fjotland Promoted to Vice President PDF Print E-mail
Written by Randy Post   
Tuesday, 31 January 2017 21:53

Mortrench's Wayn Fjotland promoted to Vice PresidentMoretrench is very pleased to announce that Wayne Fjotland has been promoted to the position of Vice President.  Wayne has more than 36 years of focused geotechnical construction management experience.  He joined Moretrench as Manager of Field Operations in 2001 and became Northeast Geotec Regional Manager in 2015.  In addition to serving Moretrench in a corporate capacity, Wayne will continue oversee the company’s geotechnical operations in the greater New York Metro area, New Jersey, and Eastern Pennsylvania.

 
URETEK Rehabilitates Prison Rec Hall PDF Print E-mail
Written by Randy Post   
Tuesday, 31 January 2017 14:46

An aging prison building in Fort Worth, Texas had seen areas of settlement as much as 7.5 inches inside the building. URETEK successfully implemented their URETEK Method to lift the sunken slabs and stabilize the floor of the Prison's Rec Hall. Check out the video below or visit URETEK's blog post for more info. [Source: URETEK ICR YouTube Channel. Image: YouTube]

 
What Does Trump Mean for Geotechnical Engineers and Constructors? PDF Print E-mail
Written by Randy Post   
Wednesday, 25 January 2017 23:28
Donald Trump

The U.S. has entered into the Trump era, so what does that mean for those in our profession? This blog post is an apolitical look at the economic outlook for infrastructure spending as it pertains to geotechnical engineers and the foundation drilling industry. Worth a quick read. [Source: Check out the post on National Driller. Image: Slate.com]

 
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