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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.

Content
URETEK Stabilizes Sinking Gypsum Dome
GeoNews - Project Related
Written by Randy Post   
Tuesday, 04 March 2014 23:07

When your gypsum plant is capable of producing 900 million square feet of wall board every year, you can't afford to see your process shut down by settlement or problems with groundwater infiltrating or soil erosion beneath slabs and footings supporting your facilities. GeoPrac sponsor URETEK ICR responded to these problems at a LaFarge Gypsum Plant in Florida and stabilized the subgrade and sealed up joints using their geopolymer injection technique. Did I pique your curiosity? Watch the video below for more details, and check out the full blog post by URETEK ICR for more details.

Video of Dome Stabilization

[Source: Uretek/YouTube. Image: YouTube]

 

Last Updated on Wednesday, 05 March 2014 06:10
 
Keynetix are Recruiting
GeoNews - Press Releases
Written by Randy Post   
Monday, 03 March 2014 06:33

Keynetix - Join the Team!Over the last three years Keynetix have redeveloped their software products to appeal to an international audience whilst increasing their visibility and sales outside of the UK. This strategy is working well and enquiries and interest are at an all-time high resulting in sales outside of the UK increasing by 300% over the last three years. This transformation was recognised by the UKTI when Keynetix reached the final of the UKTI Global Growth Awards in 2012.

[Editor] Read on for additional info about employment opportunities with Keynetix. [/Editor]

Last Updated on Monday, 03 March 2014 07:26
 
DFI 2014 Awards: Call for Entries
GeoNews - Press Releases
Written by Randy Post   
Monday, 03 March 2014 06:26

Hawthorne, NJ (February 24, 2014) DFI announces a call for entries for its major 2014 Awards. Submissions for the 2014 Awards are due by April 15, 2014. Information and nomination forms are available at www.dfi.org/awardslectures.asp.

The first three awards are presented at DFI’s Annual Conference on Deep Foundations, this year in Atlanta, GA, October 21-24, 2014.

[Editor] Read more for the full list of awards and more about the DFI. [/Editor]

Last Updated on Monday, 03 March 2014 07:26
 
Video: 2014 GeoWall Competition
GeoNews - Conferences
Written by Randy Post   
Monday, 24 February 2014 23:07

GeoWall is a competition for geotechnical engineering students where they build model mechanically stabilized earth retaining walls (MSE walls). The walls are then tested with a series of design loads and their score is a function of how well the wall performs under loading and how efficient their design was. The competition was held at the 2014 Geo-Congress in Atlanta which is put on by the Geo-Institute of ASCE. Students from universities all around the U.S. participated in this fantastic event! Enjoy the video highlights!

2014 GeoWall Competition Video

 

[Source: YouTube. Image: YouTube]

 
Last Updated on Tuesday, 25 February 2014 06:10
 
GeoPrac.net Celebrates 7th Anniversary!
GeoNews - Rockman\'s Ramblings
Written by Randy Post   
Thursday, 20 February 2014 07:30

GeoPrac.net celebrates another anniversary!7 years ago today, I wrote my first post for GeoPrac.net! It’s hard to believe I’ve been doing this for that long. I am grateful for all of the visitors, twitter followers, supporters, and of course sponsors that have made it possible for me to share high-quality news and articles for geoprofessionals. I look forward to another great 7 years.

Last year I highlighted a few of my favorite articles and blog posts. This year, I thought I would just go by the numbers to see what the most popular articles and posts have been over the years. Check it out.

Most Popular GeoPrac.net Content

Click through for the list!

Last Updated on Thursday, 20 February 2014 07:32
 
Bertha Repair Plan Will Involve Vertical Shaft In Front of Machine
GeoNews - Project Related
Written by Randy Post   
Thursday, 20 February 2014 00:13

Damaged bearings in Bertha

WSDOT announced on Valentine's Day that the plan to repair the damaged Bertha TBM was not ready yet, as engineers from Hitachi Zosen, the machine's manufacturer, would need until the end of the month to have the plan ready. They did say maintenance would need to be done in front of the face, requiring the construction of a vertical shaft. It sounds like more work for STP JV team member Malcolm Drilling, and they may already have started on it. We'll keep you posted. [Source: WSDOT. Image: Seattle Times]

Last Updated on Thursday, 20 February 2014 07:15
 
Aerial footage of Italian Rockfall Event
GeoNews - Geologic Hazards
Written by Randy Post   
Wednesday, 19 February 2014 23:59

The remarkable story of the bus-sized boulders that rolled through an Italian farm at the beginning of February now has some amazing aerial video footage to go with it. Check it out.

[Source: YouTube via AEG Insider. Image: YouTube]

Last Updated on Thursday, 20 February 2014 07:02
 
“Foamjacking” Solution for Seneca Rocks USFS Visitor’s Center
GeoNews - Press Releases
Written by Randy Post   
Friday, 14 February 2014 06:26

Seneca Rocks Visitor's Center was experiencing geotechnical foundation problemsU.S. Forestry Service Saves Thousands with Use of TerraThane Geotechnical Foam by NCFI Polyurethanes at Seneca Rocks Discovery Center

MOUNT AIRY, NC— Seneca Rocks Discovery Center, the visitor's center for the eastern U.S.'s most popular rock-climbing destination located in Pendleton County, WV, had a growing problem common to concrete slab foundations: erosion of the soil beneath the slabs created voids that left areas of the center with uneven spots and settled anywhere from one-to three inches. That led to cracks in interior walls, uneven floors, and trip hazards for the thousands of visitors to the area's most popular scenic attraction. Seneca Rocks is a striking 900 ft peak that features over 375 mapped climbing routes varying in degree of difficulty from easier 5.0 to the hardest 5.13, and attracts climbers from around the world.

[Editor] Click through to find out how geotechnical foam manufactured by GeoPrac.net’s sponsor, NCFI Polyurethanes, was used to repair this important structure! [/Editor]

Last Updated on Friday, 14 February 2014 09:59
 
Retaining Wall failure at Ho Ching Yuen, Malaysia
GeoNews - Failures
Written by Randy Post   
Wednesday, 12 February 2014 15:38

This retaining wall failure occurred in Kuala Lumpur, Malaysia in 2009. The failure was caught on video, albeit with a crappy camera phone. But it's well worth a look! Dave Petley of the Landslide Blog also tracked down an article on the original failure. It's the usual case of chicken or the egg. Did the water pipe failure cause the wall to fail, or did the wall fail and then cause the pipe to fail. Thanks to my colleague Bob Cummings of Saguaro Geoservices for sending this my way.

Video of Retaining Wall Failure

[Source: YouTube via The Landslide Blog. Image: YouTube]

Last Updated on Wednesday, 12 February 2014 22:43
 
Sinkhole Beneath National Corvette Museum Devours 8 Cars
GeoNews - Geologic Hazards
Written by Randy Post   
Wednesday, 12 February 2014 15:24

Sinkhole swallows Corvettes in Bowling Green, Kentucky

A 40 foot diameter sinkhole 30 feet deep opened up beneath the National Corvette Museum in Bowling Green, Kentucky, and swallowed 8 of the Corvettes on display. The museum's security company alerted the staff members that the motion sensors had gone off at about 5:40 am on February 12 in the 'SkyDome' portion of the museum, separate from the main building. The museum called in a structural engineer and some Karst sinkhole experts who used a remote controlled helicopter to get photos and video inside the sinkhole. See those videos below. The main museum will be open as usual tomorrow, but the SkyDome will be closed indefinitely. [Source: NYTimes.com. Image: National Corvette Museum via NYTimes.com]

Videos of Corvette Munching Sinkhole

Last Updated on Wednesday, 12 February 2014 22:43
 
Feb. 7 Bertha update: Two factors contributed to tunnel stoppage
GeoNews - Project Related
Written by Randy Post   
Tuesday, 11 February 2014 00:40

WSDOT released an update on February 7 with some conclusions regarding the blockage that has stopped the Alaska Way Viaduct Tunnel Boring Machine, Bertha's progress since December 6. Now they don't think it was necessarily the well casing after all.

They cite two factors that contributed to the blockage. First, the cutterhead was clogged with material. You can see an cool short video of a worker unclogging the cutterhead. Not terribly dramatic, but still cool. The second factor was increased temperatures inside the equipment. STP discovered damage to a seal that protects the machine's main bearing. They are still determining how the repairs will be done.

If you want to follow the chronology of this issue, read below for summaries and links to previous updates from WSDOT. And Check out the videos too! [Source: WSDOT]

Last Updated on Tuesday, 11 February 2014 07:58
 
Weekend CUP for February 3, 2014
GeoNews - Weekend CUP
Written by Randy Post   
Monday, 03 February 2014 20:01

It's been a while since I've posted one of my catch-up-posts or CUPs. The pipes were getting a bit clogged, so here are some articles that folks might find interesting. Sorry I didn't get a chance to blog about them in more detail.

Read on for the rest of this list!

Last Updated on Monday, 03 February 2014 06:33
 
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