Available Resources

Geologic Hazard Photos

The National Geodetic Data Center (NGDC) of NOAA has an online collection of photos of various geologic hazards. Many of the photos are from older sets of 35mm slides that have been digitized. They are free to use provided you credit the photographer and the NGDC as the source. The would be really useful for educators and for powerpoint presentations. The only drawback is that they are in TIF format and some of them could use some retouching. (Photo by University of Colorado, made available by NOAA/NGDC)

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New Sheet Piling Installation Manual

The North American Steel Sheet Piling Association (NASSPA) has released a Sheet Piling Installation Manual. It has a nice overview of different hammer systems and covers issues such as driving systems and methods, templates, cofferdams, driving corrections, driving assistance and extraction. (Photo courtesy of NASSPA)

NASSPA promotes the use of steel sheet piling through the development and dissemination of technical information. This guide was compiled to assist the designer, contractor, or owner with the construction of steel sheet pile walls.

Download the Steel Sheet Piling Installation Guide – Best Practices

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Available Resources

Second Issue of International Journal of Geoengineering Case Histories [Official This Time]

The International Journal of Geoengineering Case Histories has formally announced their second issue. Apparently when I posted about it previously, they had only two of the four papers.

This second issue contains four case histories that come with additional downloads. In particular, check out Dr. Edmund Medley’s Paper on the 2006 Hawaii Earthquakes. He has some neat  photos including some in 3-D (more about his 3-D photos).

 

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Series of Articles on Seismic Analysis

I had an earthquake engineering course in my geological engineering undergraduate program, and an excellent teacher, but man, the math gave me fits! Well, apparently my time has finally come to make the effort to understand it again. A retired Canadian geophysicist/engineer is writing a series of articles on seismic analysis. Read more… (Photo by trochee)

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Ground-Based Stereo Photography in Geoengineering

Stereo photography has long been a tool for geoengineers with respect to aerial photos. But many people are not aware that you can use stereo photography with ground based targets to create 3-D photos. I beleive the technical term is terrestrial photogrammetry (useful if you want some technical articles on the subject). [Red/cyan anaglyph by E. Mathieson]

Dr. Edmund Medley of Geosyntec, owner of the Bimrocks website, has a page on the topic of 3-D Photos in Geoengineering at the GeoEngineer.org website.  On it he has several PDF versions of presentations on the topic that have many examples of the applications of this type of thing to geoengineering projects and suggestions for how to implement it.

Furthermore, Dr. Medley extended a gracious offer to mail Red/Cyan anaglyph 3-D glasses to any GeoPrac.net visitors who are interested. Contact him through his Bimrocks website.

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Geo-Institute Website Changes

The Geo-Institute of the ASCE has made some changes to their online services. For starters, they have now posted online versions of the Geo-Strata magazine. The only catch is you have to be a member to read them. Additionally, they now have a blog with an associated RSS news feed. If you don’t use RSS feeds, you can always head over to our Outside News and Blogs page where we have already incorporated this new blog’s feed into our aggregated news.

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Utah Releases Landslide Susceptibility Map

The Utah Geologic Survey has released a "Landslide Susceptibility Map of Utah". They apparently relied quite heavily on GIS based thresholding of existing slope angles but only after they had statistically analyzed failure  angles for particular geologic units. So it sounds like they throw the known landslides, the geologic map of Utah and a DEM into the GIS a blend it all up. Perhaps a slight oversimplification!

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Video: Fun with Falling Rocks

Thank you to my old colleague at URS Corporation, Andy Messer for sending me a link to these videos. The are from an Austrian company, Trumer Schutzbauten, that provides products and research related to rockfall fences. The first video is presumably to show the hazards of camping next to hazardous rock slopes…good fun! Click through for the videos.

 

 

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New NCHRP Report – Drainage and Pavement Performance

A new publication has been released on the Transportation Research Board website. It is National Highway Cooperative Research Program (NCHRP) publication Number 583, Effects of Subsurface Drainage on Pavement Performance. From the foreword of the document:

"This report evaluates the effects of subsurface drainage features on pavement performancethrough a program of inspection and testing of the subsurface drainage features present in the Long-Term Pavement Performance (LTPP) SPS-1 and SPS-2 field sections. The report will be of particular interest to engineers in the public and private sectors with responsibility for the design, construction, and rehabilitation of highway pavements."

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