At last month’s Earth Retention Conference, ER2010, there were many references to the second ER conference in 1990. One paper from that proceedings that garnered many mentions and was referenced by several at this year’s conference as a seminal paper was by Dr. G. Wayne Clough and Thomas D. O’Rourke entitled ‘Construction induced movement of insitu walls‘. I found it somewhat poetic that a recent issue of Geocomp’s newsletter described the monitoring of deformations of the temporary shoring for the Clough Undergraduate Learning Commons at the Georgia Institute of Technology (Georgia Tech). Geocomp performed the monitoring using multiple Leica automated motorized total stations (AMTS) with reflective prism targets along with their iSiteCentral software to ensure no deformation-induced damage to the adjacent historic library structure. [Source: Geocomp Newsletter. Image: Geocomp]
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Devil’s Slide is an infamous landslide along California’s Highway 1 or Pacific Coast Highway near Pacifica, just south of the San Francisco Bay area. Caltrans’ Devil’s Slide Tunnel project is an effort to bypass that slide and make the heavily traveled roadway safe for drivers and to eliminate the maintenance and traffic hassles caused by slope failures blocking the road. We first covered the project back in September of 2007 when the tunnel portion of the project commenced. In that post, you can find a Google Earth KML File showing the location of the tunnels and the new bridges associated with the project. In this post, I’ll provide you with some updated progress information as well as some background on the geotechnical and other aspects of the project. More links and videos are at the end of the post. (Photo by Kim Komenich, San Francisco Chronicle). […]