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Sunday, 10 August 2014

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Professor Chuck Ladd passed away on August 4th 

GeoPrac.net [2014-08-10 09:37:48]  recommend  recommend this post  (54 visits) info
MIT Emeritus Professor Charles C. (Chuck) Ladd passed away on August 4 according to a post on the ASCE Geotechnical Engineering Group. Professor Ladd was a legend in the geotechnical engineering community, and among his many awards were the prestigious Croes Medal, the Norman Medal, and the Terzaghi Lecture Award. He was also a member of the National Academy of Engineering. You can find Professor Ladd's obituary at the Boston Globe. [Source: LinkedIn - ASCE Geotechnical Engineering Group. [...]

Update on Access Pit for Repairing Bertha TBM 

GeoPrac.net [2014-08-05 08:33:51]  recommend  recommend this post  (31 visits) info

 US,ST
There hasn’t been much to report recently for the Alaskan Way Viaduct Tunnel Project in Seattle. As you probably know, Bertha has not advanced since about December of 2013 after drilling through an abandoned steel well casing left over from engineering studies. Whether it was the casing or boulders, or something else that damaged the seals around the giant TBM’s cutterhead, they have some major repair planned.  If you like, feel free to read more about what happened with [...]

Catch Up Post (CUP) for August 4, 2014 

GeoPrac.net [2014-08-05 07:46:22]  recommend  recommend this post  (19 visits) info

 Ordovician; CA,BR,AE,US,IN,MY
Here are a few articles I didn't get a chance to blog or tweet about. Enjoy! $41 Million Contract Awarded to Hayward Baker Related to Seattle's Elliott Bay Seawall Project - Source: Digital Journal Scientists exploring Oso slide zone for answers - Source: KING5.com Seattle EOS Remediation Strategic Alliance with Chemical Grouting Company and Hayward Baker - Source: Nassau News Live Deep into Ground Improvement Work on Ohio River Bridges Project in Louisville, KY - Source: [...]

USGS Historical Topographic Map Explorer 

GeoPrac.net [2014-08-05 00:41:52]  recommend  recommend this post  (18 visits) info
Esri announced earlier this summer that they were making over 175,000 historical maps from the USGS available online. The maps are available to anyone to view online using their web map viewer. Or ArcGIS online subscribers can have access to high-resolution geo-referenced raster images for use in their ArcGIS projects and web mapping projects. Very cool! [Source: View the Historical Topo Map Explorer at ArcGIS.com via Or read more about the tool and find additional information at the Esri [...]

Oso landslide: differences of opinion about the landslide mechanisms 

GeoPrac.net [2014-07-31 09:32:12]  recommend  recommend this post  (24 visits) info

 US
Professor Petley, the author of the Landslide Blog, has an interesting discussion about a controversy in the geoengineering / geology community regarding the Oso landslide in Washington State. The Geotechnical Engineering Extreme Events Reconaissance (or GEER) report was recently issued for the OSO landslide. But USGS scientists have a different theory about the event. Both the GEER committee and the USGS agree that the Oso landslide was a two-fold failure event. But the difference in [...]

Crazy Rock Slide in China (Video) 

GeoPrac.net [2014-07-31 09:16:13]  recommend  recommend this post  (22 visits) info

 CN
According to the Landslide Blog, this rockfall video was taken in Maoxian County in Sichuan Province of China on or around July 17, 2014. It shows a very dangerous rockfall event with people running from their cars. In one scene you can even see someone being struck by a rock and knocked over. The person is later able to walk away with assistance. Towards the end of the video, even the windshield of the videographer is struck by a smaller rock and cracked. Very dramatic and very scary video! [...]

Liebherr Creates Foundation Drill Rig Simulator 

GeoPrac.net [2014-07-25 13:55:08]  recommend  recommend this post  (13 visits) info
Equipment manufacturer Liebherr has created a new simulator to allow operators to train on foundation drilling equipment virtually. The simulator is based on other simulators created by Liebherr, and includes things like a real construction site with neighboring buildings and structures, uneven ground, varying soil conditions, etc. [Source: Read more at GE Innovation News | New Civil Engineer via @GE_magazine. Image: NCE / GE Innovation

Hayward Baker Constructs Temporary Emergency Earth Retention for Landslide Repairs Near Train Tracks in Baltimore 

GeoPrac.net [2014-07-22 09:28:59]  recommend  recommend this post  (13 visits) info

 US
Hayward Baker was among the contractors called in for emergency repairs to a failed retaining wall in Baltimore that destabilized a slope, causing a landslide that enveloped cars and threatened a railroad track below. The final episode of the slope failure was caught on video and showed several cars being swallowed. GeoPrac sponsor, Hayward Baker is currently on-site installing a temporary soldier pile lagging wall with tiebacks to facilitate the construction of a permanent wall. They are [...]

ASFE Changes Its Name to Geoprofessional Business Association 

GeoPrac.net [2014-07-22 09:21:11]  recommend  recommend this post  (13 visits) info
ASFE has been a fixture in the geoprofession since its inception in 1969. They are officially changing their name to the Geoprofessional Business Association to more accurately reflect what their role and mission is. [Source: Read more about the name change on the Geoprofessional Business Association

Crux Subsurface Wins Two 2014 DFI Awards 

GeoPrac.net [2014-07-11 09:38:53]  recommend  recommend this post  (119 visits) info

 US
Congratulations to Crux Subsurface, Inc. on winning the Deep Foundation Institute's (DFI) 2014 Outstanding Project Award (OPA) and the 2014 C. William Bermingham Innovation Award for their Sunrise Powerlink Project in California. The project involved the installation of over 3,700 micropiles for the foundations of new steel lattice towers for a 117 mile transmission line running from Imperial Valley to San Diego. All of the micopiles were installed using rigs and equipment mobilized by [...]

Time Lapse Video of Foundation Drilling for Dubai Residential High-Rise 

GeoPrac.net [2014-07-11 09:33:52]  recommend  recommend this post  (32 visits) info

 AE
[Source: YouTube. Image:

Geotechnical work underway on ‘new’ section of Historic Highway 

GeoPrac.net [2014-07-11 09:22:01]  recommend  recommend this post  (34 visits) info

 US
Geotechnical work has commenced for a project involving reconstructing the Historic Columbia River Highway in Hood River County as a segment of Oregon's Historic Highway State Trail. The geotechnical scope consists of 48 test pits, 58 boreholes, and constructing 4,000 linear feet of temporary access roads. [Source: Hood River News. Image: Hood River

World Cup 2014: a landslide affects the city of Natal in Brazil 

GeoPrac.net [2014-07-01 09:27:45]  recommend  recommend this post  (9 visits) info

 BR,GH,US
Torrential rain in the World Cup city of Natal caused a landslide right around the time that the USA defeated Ghana. According to the Landslide Blog, the landslide destroyed 50 homes but there were no lives lost. A You-Tube Video showing the landslide as seen from a small UAV shows the devestation, and interestingly shows a storm drain that could have played a role in the failure, perhaps becoming overwhelmed after the 50 hours of rain that fell on Natal. [Source: The Landslide Blog. Image: NBC [...]

2014 Terzaghi Lecture - Carlos Santamarina 

GeoPrac.net [2014-07-01 09:14:21]  recommend  recommend this post  (8 visits) info

 US
Dr. Carlos Santamarina of Georgia Tech. presented the 2014 Terzaghi Lecture at Geo-Congress 2014 entititled 'Energy Geotechnology: Enabling New Insights Into Soil Behavior'. From the You-Tube summary: Energy is critical to life, and the coming decades will see worldwide population growth and associated economic development that will result in a pronounced increase in energy demand. Historically, geotechnical engineering has been crucial to projects that have sustained societal [...]

Hayward Baker Forms Strategic Alliance with EOS Remediation and Chemical Grouting Company 

GeoPrac.net [2014-06-30 08:06:11]  recommend  recommend this post  (49 visits) info

 JP,US,CG
Alliance Formed for the Commercialization of BioJet Technology to Solve the Challenges of Environmental Remediation in Low-Permeability Contaminated Soils Hanover, MD (PRWEB) June 25, 2014 Hayward Baker Inc. (HBI) announces the formation of a strategic alliance with EOS Remediation, LLC (EOS, Raleigh, NC) and Chemical Grouting Co., Ltd. (CG Co., Tokyo, Japan) for the commercialization of the BioJet™ technology. BioJet technology provides a solution for one of the most difficult [...]

VA Company Uses NCFI's TerraThane Geotech Foam System to Save Parking Lot, Time, and Money for NC Municipality 

GeoPrac.net [2014-06-30 01:16:03]  recommend  recommend this post  (18 visits) info

 US,GB
MOUNT AIRY, NC—Concrete Jack, Inc. of Williamsburg, VA, a company specializing in concrete leveling and foundation repair along the Eastern Seaboard and the South, used TerraThane Geotechnical Foam system to help save the parking lot of a Wake Forest, NC auto repair business. "Parking lots are notorious for sinking from failed storm water structures," says Kirk Roberts, division manager for Concrete Jack. "Water causes erosion around the structures, voids form, voids [...]

DBM Contractors, Inc. Announces Management Succession Plan 

GeoPrac.net [2014-06-26 22:06:16]  recommend  recommend this post  (2 visits) info
SEATTLE — Michael Murphy, chairman of the DBM Contractors, Inc. board and managing director, announced DBM’s management succession plan. “It is important to note that the succession plan is designed to foster our commitment to our family of employees, our mission statement, and our clients. Maybe it gets a little touchy feely but it also honors the legacy of Don and Helen Murphy’s view of a successful family oriented company, rewarding the growing talent within the [...]

TerraThane Geotechnical Foam Maker, NCFI Polyurethanes, Turns Fifty 

GeoPrac.net [2014-06-19 09:02:26]  recommend  recommend this post  (77 visits) info

 US
Founders Included Chemist from Manhattan Project, Pioneer of Urethanes, and Charlotte-Based Cotton Company MOUNT AIRY, NC—NCFI Polyurethanes, an international manufacturer of rigid and flexible polyurethane foams turns 50 this year. The Mount Airy-based company got its start in 1964 as North Carolina Foam Industries through a partnership between Dr. Harris W. "Ace" Bradley, who had worked on the Manhattan Project during WWII and with Dupont in discovering and pioneering [...]

DFI Forms New DFI Technical Committee: Subsurface Characterization for Deep Foundations 

GeoPrac.net [2014-06-06 06:50:53]  recommend  recommend this post  (87 visits) info
Hawthorne, NJ (May 28, 2014): DFI announces the formation of a new, 16th technical committee focusing on site investigation for deep foundation design and construction. The Subsurface Characterization for Deep Foundations Committee was formed to increase awareness of the importance of complete and competent site investigation in deep foundation practices. The specific goals of the committee will be defined by the committee members, however, initially the committee will discuss and define [...]

Video: Low-Tech Pile Driving Option 

GeoPrac.net [2014-06-06 00:10:51]  recommend  recommend this post  (32 visits) info
I know this video made the rounds by email and on Geoengineer a while back, but I haven't posted it here. It shows a novel way of installing piles in softer soil. Those guys have some nice rhythm! Happy Friday. [Source: YouTube. Image:
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