Video Tour of NY Subway Mega-Projects
Geologic Hazards
Landslides in China – Sichuan and Guangxi
In Sichuan Province, China, they were still in the recovery process from the devastating 2008 earthquake when a series of landslides, rockfall, mudslides and flooding has hit the region. Dave’s Landslide Blog has excellent coverage as usual on the slide pictured here, which blocked a major road, hindering rescue efforts. (Photo Xinhua/Jiang Hongjing)
A remarkable video of the aftermath of a bridge destroyed by one of these rockfall / landslide events is shown below. The destruction is pretty profound. (Via Geology.com)
Also on Dave’s blog, a landslide in Guangxi caused a train to derail, killing 4 people and injuring 50. My heart truly goes out to the people of those portions of China, particularly in Sichuan as they have been through so much.
Project Related
Video: Construction continues on Caldecott Tunnel fourth bore
This is a pretty nice little 3-minute news segment on the Caldecott Tunnel 4th Bore Project in the California Bay Area. Progress is slow, at only about 10-15 feet of progress per day, but work […]
Available Resources
Video: RPI Geotechnical Engineering Centrifuge
I stumbled across this video for the geotechnical engineering centrifuge at Rensselaer Polytechnic Institute. Centrifuge testing is a popular way to economically test models at much higher loads and pressures than you would normally be able to in the laboratory. The goal is to more accurately represent the real world conditions. Click through for the video.