Available Resources – Page 39

Ground-Based Stereo Photography in Geoengineering

February 18, 2008 rockman Comments Off

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

January 22, 2008 rockman Comments Off

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

January 9, 2008 rockman Comments Off

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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Free Online Access to Natural Hazards Journal

November 1, 2007 rockman Comments Off

Springer, publisher of a number of geo-related journals and books is having a promotion offering free online access to their Natural Hazards journal. The access is good for 30 days from October 22 so go check it out now. (Image copyright Springer).

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Video: Fun with Falling Rocks

October 31, 2007 rockman Comments Off

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

October 22, 2007 rockman Comments Off

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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ASDSO Releases Simplified Risk Categorization Tool for Dams

October 17, 2007 rockman Comments Off

As part of their State and National Dam Safety Program, the Association of State Dam Safety Officials (ASDSO) has released pre-release versions of the Simplified Risk Categorization Tool, consisting of two Excel spreadsheets, and a users manual. More info after the break. (Photo by drainhook)

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Technological Advances in Geotechnical Engineering

October 8, 2007 rockman Comments Off

According to James Miller of GeoEngineers, Inc., the most significant recent technological advances in geotechnical engineering are LiDAR, GIS-based data management, and advanced analysis of soil-structure interaction. Read his article at DJC.com. Thanks to iCivilEngineer […]

Several New Geofoam Papers Available

September 24, 2007 rockman Comments Off

Geosynthetica has added several new publications to their online library. They are all papers authored or co-authored by Professor John Horvath of Manhattan College and made available through his website. They are all on the topic of geofoam, a subject on which Professor Horvath is a recognized expert. Read on for a list of the newly listed publications. (Image courtesy of NCS Consultants, LLC)

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Rockfall Protection Installation Video

September 11, 2007 rockman Comments Off

Geovert, a specialty design-build geotechnical contractor in New Zealand and Australia has released a video showing the construction of a challenging rockfall protection project. From their YouTube description:

Stockton Coal Mine is situated on the rugged west coast of New Zealand’s South Island, near Westport. Geovert, a design-build contractor specializing in difficult access rockfall mitigation projects, were retained to provide a turnkey solution combining slope protection and stabilisation measures, to manage the rockfall hazard and protect the surrounding environment with a world class design build rockfall protection solution. The barrier was 1.7 kilometres long and follows a ridgeline escarpment, making this the longest rockfall protection barrier in the southern hemisphere. This was one of the largest and most challenging rockfall construction projects completed to date anywhere in the world.

Click through to see the video.

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