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Tuesday, 14 October 2014

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Panama Canal Cover Story in Pile Buck Magazine 

GeoPrac.net [2014-10-14 08:26:40]  recommend  recommend this post  (16 visits) info

 PA
The latest issue of Pile Buck Magazine has a cover story on the Panama Canal Construction. Talk about a mega project! There are actually two articles, the first includes a very nice summary of the overall project. Both discuss the construction of a huge cofferdam to separate Miraflores Lake from the construction area for the new Pacific Access Channel. This channel will link the third set of locks to Culebra Cut. The cofferdam consisted of 58 circular cells comprised of 17,000 tons of straight [...]

Catch-up Post for October 8, 2014 

GeoPrac.net [2014-10-08 15:09:36]  recommend  recommend this post  (16 visits) info

 MX,US,KR,IN
Leading Building Foundations Engineer Clyde Baker Joins GEI Consultants - Source: VPO Press Release Contractor announces details of repair work plan for the SR 99 tunneling machine - Source: WSDOT Alaskan Way Viaduct Hayward Baker Forms Strategic Alliance with EOS Remediation and Chemical Grouting Company - Source: Digital Journal Remodeling Bertha’s launch pit - Source: WSDOT Alaskan Way Viaduct Engineering Company Aecom to Buy URS for $4B - Source: ABC News [...]

LiDAR Applications in Landslides 

GeoPrac.net [2014-10-08 08:12:08]  recommend  recommend this post  (2 visits) info

 US
The cover story in the latest issue of LIDAR Magazine is titled Unearthing Landslides. It describes the work done by a company called Quantum Spatial in the immediate aftermath of the Oso Landslide. They were also involved in scanning the recent landslide in Grand Mesa, Colorado. Quantum Spatial has developed a landslide tool that identifies areas of landslide risk based on different aspects of the LiDAR based topography. [Source: Read the article from LiDAR News. Image: LIDAR

Happy Karl Terzaghi's Birthday 2014! 

GeoPrac.net [2014-10-02 14:53:25]  recommend  recommend this post  (26 visits) info

 US
It's October 2 again, and today would have been Karl Terzaghi's 131st birthday. As I was reflecting on Terzaghi and some of his quotes, I was reading a passage from Professor's Goodman's biography1 that described a talk that he gave in 1924 entitled "The Way to Happiness." I thought this would be a nice change of pace from some of his more famous quotes and topics. Here are some selections from Goodman's description of the presentation. ...This stems from application of the law of [...]

New Version of RockWorks16 Available 

GeoPrac.net [2014-09-30 09:04:27]  recommend  recommend this post  (12 visits) info
Geological software developer RockWare announced last month that their free update for RockWorks 16 contains over 75 changes since the previous update. And if anyone is counting, that's 672 changes since the initial release of RockWorks 16. They seem very receptive to user feedback, and very proactive with their new releases. I wish more geo-software companies were like that! [Source: The RockWare Blog. Image: RockWare

Underwater landslide may have doubled 2011 Japanese tsunami 

GeoPrac.net [2014-09-30 08:27:14]  recommend  recommend this post  (11 visits) info

 FR,JP
A seismologist at the University of Tokyo believes that the monstrous tsunami that was responsible for so much damage and loss of life during the 2011 Fukushima earthquake may have been a result of a submarine landslide the size of Paris. The researchers reached their conclusion by back-analyzing the wave motion measurements from buoys on the day of the earthquake. After modeling the size and approximate location of the landslide, other team members were able to compare bathymetry data from [...]

Hayward Baker to Provide Ground Improvement for New Atlanta Stadium Project 

GeoPrac.net [2014-09-19 08:24:54]  recommend  recommend this post  (34 visits) info

 US
Hayward Baker will construct their Vibro Piers(TM) foundation system at the new stadium to house the Atlanta Falcons and a new MLS team. Their holes will be 2.5 feet in diameter and 27 feet deep and filled with vibro compacted No. 57 stone. The project is anticipated to take 5 weeks, operating 6 days a week to keep the project schedule on track. Hayward Baker is a sponsor of GeoPrac.net. [Source: Hayward Baker. Image: Hayward

ENR Releases Top 200 Environmental Firms of 2014 

GeoPrac.net [2014-09-19 08:15:39]  recommend  recommend this post  (22 visits) info
ENR's annual ranking of the Top 200 Environmental Firms has been released. Their survey ranks firms based on revenue, and the results of their survey show a growth of 4% from 2013 to 2014 to $53.7 billion which reverses the trend observed in last year's survey. [Source: Check out ENR: Engineering News Record to see the full top 200 list. Image:

Video: Construction Begins on Buttress for US 89 Landslide 

GeoPrac.net [2014-09-11 08:31:34]  recommend  recommend this post  (11 visits) info

 US,CA
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:

NASA Radar System Surveys Napa Valley Quake Area 

GeoPrac.net [2014-09-09 08:21:55]  recommend  recommend this post  (18 visits) info

 US
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 [...]

Recording Geotechnical Drill Rig Parameters 

GeoPrac.net [2014-09-09 08:11:18]  recommend  recommend this post  (17 visits) info

 US
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 [...]

Terracon CEO Takes ALS Ice Bucket Challenge 

GeoPrac.net [2014-09-05 08:19:32]  recommend  recommend this post  (15 visits) info
[Source: YouTube. Image:

Scot Litke Named 2014 DFI Distinguished Service Award Recipient 

GeoPrac.net [2014-08-28 15:32:16]  recommend  recommend this post  (75 visits) info

 HU,US
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 Breaks Ground on Recently Awarded K-10 South Lawrence Trafficway Ground Improvement Project in Lawrence, Kansas 

GeoPrac.net [2014-08-28 15:26:05]  recommend  recommend this post  (89 visits) info

 US
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 [...]

Dataforensics Rapid CPT Software Receives Major Update 

GeoPrac.net [2014-08-28 15:18:03]  recommend  recommend this post  (63 visits) info

 US
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 [...]

Port of Oakland Soil Stabilization 

GeoPrac.net [2014-08-26 08:30:06]  recommend  recommend this post  (38 visits) info

 US
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 [...]

List of Top Geotechnical Engineering Schools 

GeoPrac.net [2014-08-26 08:28:26]  recommend  recommend this post  (43 visits) info

 US
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 [...]

Magnitude 6.0 Earthquake in Napa, California 

GeoPrac.net [2014-08-25 08:12:43]  recommend  recommend this post  (24 visits) info

 US
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 [...]

Professor Chuck Ladd passed away on August 4th 

GeoPrac.net [2014-08-10 09:37:48]  recommend  recommend this post  (73 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  (77 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 [...]
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