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About GeoPrac.net

GeoPrac.net is a community of practitioners of geotechnical engineering, geological engineering, engineering geology, geophysics, hydrogeology and related disciplines. We offer members and visitors the foremost collection of geo-related articles, news, and online resources to keep those geo-professionals in practice at the forefront of their respective fields.

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Federal Highway Administration Launches New National Tunnel Inspection Program
GeoNews - Press Releases
Written by Randy Post   
Monday, 27 July 2015 01:00
United States of America Department of Transportation New Initiative Modeled After Longstanding Bridge Program

WASHINGTON –The U.S. Department of Transportation’s Federal Highway Administration (FHWA) today published the final rule for national tunnel inspection standards that will serve as the foundation of the nation’s first standardized tunnel inspection program. It will be modeled after the FHWA’s successful bridge program established nearly a half-century ago to ensure the safety of the nation’s bridges.

“This important step to keep our nation’s tunnels safe for the traveling public is unprecedented,” said U.S. Transportation Secretary Anthony Foxx. “Establishing national standards will help us maintain a high level of quality and uniformity in tunnel inspections nationwide.”

[Editor] Read on for the rest of this press release from the US DOT. [/Editor]

Last Updated on Saturday, 25 July 2015 08:19
 
Geocomp to Provide Engineering Services for Fukushima Ice Wall
GeoNews - Project Related
Written by Randy Post   
Monday, 27 July 2015 01:00

Ice wall to prevent migration of radioactive ground water at Fukushima Nuclear FacilityAfter the 2011 Fukushima earthquake, the reactors at TEPCO's nuclear facility began leaking radioactive groundwater. The plan to contain the contamination is to use ground freezing to construct an "ice wall" to cutoff the flow. Acton, Massachusetts based Geocomp has been contracted by TEPCO to provide engineering services for the ground freezing. Geocomp has subcontracted specialty geotechnical contractor and GeoPrac sponsor Moretrench to provide their specialty ground freezing expertise as well. Moretrench is a world leader in the design and construction of ground freezing projects. The Geocomp newsletter (from a few months ago) noted that the report deliverables will need to be provided in English and Japanese.

Image Source: wordlessTech

Last Updated on Saturday, 25 July 2015 07:49
 
Selected IFCEE 2015 Articles Free for Limited Time
GeoNews - Available Resources
Written by Randy Post   
Monday, 27 July 2015 01:00

IFCEE 2015 LogoThe 2015 International Foundation Congress and Equipment Expo was held in San Antonio back in March of this year.  The proceedings from IFCEE 2015 are now available online and for purchase at the ASCE Library.  However, they are offering a selection of papers for free for a limited time, you just need to be registered with ASCE Library. You can register for free to get access if you haven’t already.

Last Updated on Saturday, 25 July 2015 07:47
 
Site Characterization Services: Step 1 Data Mining
GeoNews - Available Resources
Written by Randy Post   
Thursday, 16 July 2015 23:33

A nice video from Terracon on the first step for a geotechnical engineering investigation. [Source: Terracon YouTube Channel. Image: YouTube]

Last Updated on Friday, 17 July 2015 06:34
 
Winners of the First Annual Golder Foundation Awards
GeoNews - Comings and Goings
Written by Randy Post   
Thursday, 16 July 2015 23:15

Golder Foundation Infographic

The Golder Foundation presented the first annual awards to six students in the fields of Ground Engineering and Contaminant Site Assessment and Cleanup. The cash awards, totaling $40,000 USD, are meant to encourage and recognize technical excellence in some of the areas that Golder practices in.

 

The Golder Foundation was created in 2013 and aims to further knowledge and learning by opening the technical archives of our founders and some senior staff; through sharing Golder's distinct ownership model and business legacy; and by granting these annual awards.

 

[Disclosure] I am a full time employee of Golder Associates Inc. but GeoPrac.net is run on my own time, and with no involvement from Golder. The opinions expressed here represent my own and not those of my employer. [/Disclosure] [Source: Read about the Winners from the Golder Foundation. Image: Golder Foundation]

Last Updated on Friday, 17 July 2015 06:20
 
New DeWind One-Pass Trencher–World’s Largest!
GeoNews - Available Resources
Written by Randy Post   
Monday, 13 July 2015 06:31

This slide courtesy of DeWind pretty much says it all!

dewind-mt3500-largest-deep-onepass-trencher-in-the-world-1-638

Last Updated on Monday, 13 July 2015 06:32
 
Historic Brewery Restored With Help of Geopolymer
Articles - Ground Improvement
Written by Ty Taylor   
Monday, 13 July 2015 06:24

Historic Pearl Brewery in downtown San AntonioTurning a 119 year old brewhouse into a four-star boutique hotel is no easy task. For the project to be a success, the structure had to literally be raised from it’s grave.

Pearl Brewery operated from 1883 until 2001 in their downtown San Antonio, Texas location. It was once the largest brewery in Texas, and even kept afloat during the Prohibition era. Today the 22- acre Pearl site grounds has become a culinary gathering place where you can eat, live, learn, and play on the banks of the San Antonio River.

Renovating the original building would be no easy task for the developer. The building had settled approximately 5 inches.  URETEK ICR successfully used their patented URETEK Method® to lift and stabilize the foundation with geopolymer.

[Editor] Read on for the rest of the contributed article from Ty Taylor of GeoPrac.net sponsor, URETEK ICR [/Editor]

Last Updated on Monday, 13 July 2015 06:38
 
Hatch Mott MacDonald Wins ACEC Grand Award for Niagara Tunnel Project
GeoNews - Project Related
Written by Randy Post   
Wednesday, 01 July 2015 00:24
The world's largest hard rock TBM breaks through on the Niagara Tunnel Project

Hatch Mott MacDonald received the prestigious ACEC Grand Award at the 2015 Engineering Excellence Awards Gala on April 21. ACEC had this project description in their program:

More than six miles long and 43 feet in diameter, the new Niagara Tunnel is the largest renewable energy project in the world. Providing much-needed power for the city of Niagara Falls, it is located deep beneath the city and is more than one and a half times wider than the English Channel Tunnel.

I blogged about this project a bit a number of years back, often pointing to the entertaining posts of a blogger and former insider in the Ontario tunneling and power industry who didn't have too many flattering things to say about the project! But it is clearly a remarkable project and deserving of the ACEC award. [Source: Tunnel Business Magazine. Image: Tunnel Business Online]

 
Moretrench Wrapup of Rapid Excavation and Tunneling Conference
GeoNews - Conferences
Written by Randy Post   
Wednesday, 01 July 2015 00:09
Moretrench wrap-up for Rapid Excavation and Tunneling Conference

GeoPrac sponsor Moretrench was very active at the recent Rapid Excavation and Tunneling Conference in New Orleans earlier this month. VP Paul Schmall helped teach a short course on grouting in underground construction, and Director of Ground Freezing Technology, Joe Sopko, co-chaired the Grouting and Ground Modification technical session, and there were three technical papers presented on Moretrench projects. [Source: Visit the Moretrench Blog to read more about the conference and see what projects were featured there. Image: Moretrench]

 
2015 Seed Lecture - Peter Robertson on Liquefaction
GeoNews - Available Resources
Written by Randy Post   
Tuesday, 23 June 2015 22:49

Peter K. Robertson, Ph.D., P.Eng, Professor Emeritus, University of Alberta, Technical Advisor, Gregg Drilling & Testing Inc. is the 2015 recipient of the H. Bolton Seed Medal for outstanding contributions to teaching, research, or practice in geotechnical engineering. He presented his keynote lecture at the 2015 IFCEE Conference in San Antonio. The title of the presentation was Evaluation of Soil Liquefaction - How Far Have We Come in the Past 30 Years?

[Source: Don't forget to Subscribe to the Geo-Institute YouTube Channel. Image: YouTube]

Last Updated on Wednesday, 24 June 2015 05:53
 
Controversy Over Rafting Trip Through Site of Oso Landslide
GeoNews - Geologic Hazards
Written by Randy Post   
Tuesday, 23 June 2015 22:48
Controversial rafting trip down the Stillaguamish River by the Oso Landslide

A professional river guide came under fire for a rafting trip through the site of the Oso landslide. Families of the victims issued a cease and desist order, but the trip happened anyway. Opponents of the trip likened it to taking a trip through a graveyard, that it was disrespectful to those that died in the tragedy. Others noted that places like the site of the Boston bombing and the World Trade Center did not get to become off limits after their tragedies. The guide said that it was his first and last trip to that site because of the low volume of water. [Source: Read more from Q13 FOX News. Image: Q13 Fox News]

 
NovoLIQ Introduction Video
GeoNews - Software Updates
Written by Randy Post   
Sunday, 14 June 2015 23:06

NovoLIQ software by GeoPrac sponsor Novotech allows geotechnical engineers to perform soil liquefaction analysis. NovoLIQ covers several liquefaction triggering analysis including post liquefaction parameters and dry sand settlement. This program covers SPT, Vs and BPT and calculates factor of safety and many other analyses results. [Source: YouTube. Image: YouTube]

 
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