As Dr. Petley noted in his blog post, this looks like a classic planar rock slide where the rock mass failed parallel to the dominant planar discontinuity set. The slide occurred on Highway 70 between […]
A large 40 foot wide by 40 foot deep sinkhole opened up just outside the endzone of Austin Peay State University’s Governors Stadium in Tennessee. The stadium is currently undergoing upgrades for next year’s football season. Sinkholes are not unexpected on Austin Peay campus, and the video below shows one example of how the University has actually incorporated the remediated sinkholes into the landscaping. Representatives from the University and the contractor expect the sinkhole will be filled without any problems.
[Updated 1/19/2015] Click through for the video since I can’t figure out how to turn off the auto-play on this one. [/Updated]
Every year, the American Association of Highway and Transportation Officials (AASHTO) has a photo contest called Faces of Transportation. This year’s top winners had a strong geo-engineering theme. A photo of the Caldecott Fourth Bore […]
My colleague at DBA, Robert has posted some new photos for this interesting project involving micropiles supported piers, rock bearing footings at the abutments augmented with rock anchors, and rock bolted slopes. Scroll down for […]
Amazing video of a rockslide as it happened yesterday along U.S. Highway 64 in the Ocoee River gorge in Tennessee. TDOT crews had almost finished removing rockslide debris from an event earlier in the day when a second slide occurred, blocking the road again. That looks like a pretty planar joint set dipping right into the roadway and everything was wet from the recent rains. Click through for the video.
On December 22 of 2008, there was a massive failure of a fly ash landfill (tailings dam?) at the Tennessee Valley Authority’s (TVA) Kingston power plant. The failure caused a torrent of coal ash sludge […]