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Video: xGEL LatMate Software for Geotechnical Lab Efficiency PDF Print E-mail
Written by Randy Post   
Sunday, 25 March 2012 23:20

Here is a video about a nifty software product I came across at the trade show, xGEL LabMate.  I enjoyed the chance to chat with Art Koenig, the president of GeoSmart Software about this software, and about all kinds of other things from daughters to careers, ASFE, running a business and much more.

xGEL LabMate software for geotechnical laboratories
Last Updated on Monday, 26 March 2012 23:44
 
ASFE Issues New Model Agreement for Construction Materials Engineering and Testing (CoMET) PDF Print E-mail
Written by Randy Post   
Thursday, 22 March 2012 16:52
Construction Materials Testing Services

ASFE/The Geoprofessional Business Association along with Terra Insurance company have released a model agreement for construction and materials testing services (CoMET). This document was created for use by ASFE member firms based on the organization's 40+ years of fulfilling their mission of helping 'geoprofessionals maximize their importance and value to the marketplace, achieve business excellence, and manage risk.' Make sure you have your own lawyer review the model agreement before using it. [Source: ASFE. Image: Gavel & Dorn Engineering]

 
Workers and geotechnical engineer run from 10,000 cu m landslide PDF Print E-mail
Written by Randy Post   
Thursday, 22 March 2012 16:38
Landslide in Waioeka Gorge in New Zealand

Construction or maintenance personnel and a geotechnical engineer narrowly avoided being a victim of a new landslide at the site of a landslide cleanup. They were attempting to clean up a landslide on the State Highway 2 in the Waioeka Gorge, New Zealand when spotters noticed the area becoming unstable. The workers were pulled back and had to 'run for it', but one worker was swept away by the slide while still in his excavator and two other excavators were partially engulfed. The man was able to safely get out of the cab of the excavator. [Source: Otago Daily Times Online News. Image: NewstalkZB]

 
Subsea Piling Frames - StabFRAME PDF Print E-mail
Written by Randy Post   
Tuesday, 06 March 2012 16:38

Subsea piling frame from LDD

A new piece of equipment for deep ocean pile driving was recently used in 140m of water off the coast of Brazil. The StabFRAME is lowered to the sea floor and leveled to allow accurate driving of piles into the sea floor. See the video below for an example. More on the Brazil Project at the NCE link. [Source: Large Diameter Drill via NCE. Image: LDD]

 

Last Updated on Tuesday, 06 March 2012 23:41
 
Koerner on the publication of Designing With Geosynthetics, 6th Ed. PDF Print E-mail
Written by Randy Post   
Thursday, 23 February 2012 00:31
Koerner, Designing with Geosynthetics 6th Edition

Dr. Robert M. Koerner has recently published the 6th edition of his industry standard text, Designing With Geosynthetics. He changed to a small publishing company to bring down the price, and the result is a two volume set, each costing $35 for hardcover or $25 for soft cover. The eBook format is only $4 for each. Order through Xlibris. [Source: geosynthetica.net. Image: XLibris]

 
Big Ben lean nothing to worry about PDF Print E-mail
Written by Randy Post   
Monday, 06 February 2012 01:26
BBCs how leaning towers compare graphic

Here is another article on the lean of London's Big Ben clock tower. According to Professor John Burland of Imperial College, it would take 10,000 years for the tower to match the lean of the famous Leaning Tower of Pisa. The tilt is very minor at 0.26 degrees from vertical , and has not changed since the initial announcement was made in October of 2011. [Source: BBC News. Image: BBC Illustration]

 
Geo-Institute Geo-Congress 2012 Conference Younger Member Travel Grants PDF Print E-mail
Written by Randy Post   
Wednesday, 18 January 2012 17:38

Young geotechnical engineers and geoengineering professionals in the first 5 years of their careers may be elligible for a $500 grant to attend the 2012 Geo-Congress conference in Oakland, California March 25-29. See the Geo-Institute link below for more information. Applications are due by February 25, 2012. [Source: Geo-Institute]

 
Ground penetrating radar being used to detect potential sinkholes around sewer pipes PDF Print E-mail
Written by Randy Post   
Friday, 06 January 2012 07:07
July 2010 sinkhole in Milwaukee

When sewer pipes crack and leak, the surrounding ground becomes saturated and soil can migrate into the pipe and leave behind a void. Eventually this void can expand until it undermines the pavement or other structures forming a sinkhole. The same ground penetrating radar technology being used by geophysicists to perform subsurface characterization and by the military to detect roadside bombs in being adapted to detect these voids before they reach the surface. Researchers at Louisiana Tech University are developing a robot to traverse sewer pipes and scan around the pipe for potential voids using the GPR. The research is being performed with $3M from NIST and $3.2M from Cues, Inc. a Louisiana sewer inspection company. Additional trials are slated to take place this month. [Source: NOLA.com. Image: AP File Photo/Mark Was via dailyreporter.com]

 
Geotechnical Request for Proposals Template Documents PDF Print E-mail
Written by Randy Post   
Wednesday, 04 January 2012 06:26

The Structural Engineers Association of Michigan has template documents for a geotechnical RFP.

The intent of the RFP is to assist the Structural Engineer with the general requirements of information usually desired from the report. It also provides the perspective from the Geotechnical Engineer's point of view in asking the Structural Engineer to provide a detailed description of the proposed job.

The RFP is targeted at projects in the range of $10M but could be adapted for smaller projects. The documents were drafted in 2001 by members of SEAMi with input from members of ASFE. [Source: SEAMi.org]

 
Final Bimrocks Paper? PDF Print E-mail
Written by Randy Post   
Monday, 12 December 2011 21:12

Bimrocks is a term coined by my colleague Ed Medley, a fellow geopractitioner (a term he also coined).  The former term refers to "block-in-matrix-rocks" where blocks of geotechnically significant rock "float" in a matrix of weaker material.  I received the following email from Ed the other day which may be of interest to folks who deal with bimrocks:

I have, I think, written my last technical paper on bimrocks. There is little more I can preach! That paper (written with D. Zekkos) is  Geopractitioner Approaches to Working With Anti-Social Melanges, a chapter in the book  Special Paper 480: Mélanges: Processes of Formation and Societal Significance, by John Wakabayashi and Yildirim Dilek, published by the Geological Society of America. Wakabayashi and Dilek’s  full-text introduction to the volume is available at the GSA website.

Last Updated on Tuesday, 13 December 2011 07:46
 
Proposed Specifications for LRFD Soil-Nailing Design and Construction PDF Print E-mail
Written by Randy Post   
Wednesday, 30 November 2011 15:31
Proposed Specifications for LRFD Soil-Nailing Design and Construction

The current edition of the AASHTO LRFD Bridge Design and Construction specifications do not have specifications for soil nail retaining walls. This TRB publication is meant to be an interim solution for agencies who still wish to take advantage of the advantages of soil nail retaining walls for certain situations. [Source: TRB. Image: TRB]

 
New Falling Weight Deflectometer Calibration Procedures PDF Print E-mail
Written by Randy Post   
Thursday, 17 November 2011 15:41
Falling weight deflectometer from Dynatest

A report titled 'Falling Weight Deflectometer Calibration Center and Operational Improvements: Redevelopment of The Calibration Protocol and Equipment' has been published by the FHWA. This report is the result of a pooled fund study that has resulted in revisions to AASHTO's R32-09 calibration procedure for the FWT. There is also new calibration software, WinFWDCal that came out of this research. [Source: FHWA. Image: Dynatest]

 
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