Posts treating: "frontpage"
Thursday, 11 September 2014
The Arizona DOT and their contractor have begun blasting and earthwork to realign a portion of US 89 in northern Arizona near Page that was cut off by a large landslide in February of 2013. The massive blasting and excavation operation to push back the slope above the road will generate around 1 million cubic yards of material which will be used to construct a massive buttress at the toe of the slide. Check out the video below. [Source: ADOT YouTube Channel. Image:
Scientists from NASA's Jet Propulsion Laboratory in Pasadena, CA used their Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) technology to collect repeat measurements of the Napa Valley area to accurately map ground deformations from the August 24, 2014 earthquake. The special autopilot developed by NASA allows the C-20A aircraft to fly within 30 feet of its previous flight line surveys to collect high-resolution radar data. The data can be processed using interferrometric [...]
Providing geotechnical drilling parameters such as thrust, rotation, rate of penetration, and flush pressure will soon be incorporated into European Standard EN22574-15 and is already in BS5930. Having these parameters available gives geotechnical engineers another tool in the toolbox to characterize the subsurface. But I am not familiar with any drilling companies here in the US that can record and report this type of data. Does anyone use this technology in their practice? What kind of [...]
Hawthorne, NJ (August 21, 2014): S. Scot Litke, D.GE (Hon.) is the recipient of DFI’s highest award to an individual, the Distinguished Service Award. He is the 34th recipient of the award, honoring individuals chosen by their peers for exceptionally valuable contributions to the advancement of the deep foundations industry. The award will be presented on October 23, 2014, during DFI’s 39th Annual Conference in Atlanta.
Since 1982, Litke has been the editor of the ADSC’s [...]
Hayward Baker (HB) recently began work on a $9.1 million ground improvement contract for the K-10 South Lawrence Trafficway (SLT) Project located in Lawrence, Kan. as a subcontractor to Emery Sapp & Sons, Inc. The project provides a significantly improved transportation infrastructure for the state, making it a top priority for the Kansas Department of Transportation (KDOT).
Current construction will complete the southern K-10 bypass from its intersection with US 59 to the existing K-10 [...]
Norcross, GA – August, 2014 – Dataforensics proud to announce a major update to its Rapid CPT Software.
The new version of Rapid CPT (version 4.2) drastically improves performance. Depending on the dataset, the processing time is typically reduced by 80-95%. This is particularly important for customers with large datasets consisting of a hundred or more soundings where processing time previously took 3-4 hours which has been reduced to 10-15 minutes. Additionally, a new Cloud based [...]
The giant straddle cranes that load and unload cargo from the container ships at the Port of Oakland apply a fairly concentrated load along their wheel path. Over time, the wheel path area has settled, creating a hazard to crane operators, cargo, and all port workers. URETEK ICR and their affiliate EagleLIFT were called in to use their patented geopolymer technology to stabilize and lift the subgrade, restoring the wheel path to it's original elevation. Check out the video! URETEK ICR is a [...]
What are the top geotechnical engineering schools in the United States? I don't know how accurate or scientific this list is, but a quick glance tells me they definitely got many of the most well-known programs. Their list was based on the top Civil Engineering Programs (according to US News and World Report) that also offer geotechnical engineering programs. I doubt the person who compiled this knows much about geotech. But if you are a student researching where to go get a MS in geotech, this [...]
Early Sunday morning, a 6.0 Magnitude earthquake struck near Napa California lasting 10 to 20 seconds, sending 120 people to the hospital and damaging buildings, breaking water mains, disrupting power distribution, and breaking gas lines and causing fires. The earthquake was the largest to strike the Bay Area since the 1989 Loma Prieta Earthquake. I will provide more info relevant to geoengineers in the coming days. If you find any interesting info, leave a comment, or email or tweet it to me [...]
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. [...]
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 [...]
GeoPrac.net [2014-08-05 07:46:22]
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(21 visits) 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: [...]
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 [...]
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 [...]
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!
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 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 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
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 [...]