City of Vancouver sues over failed shoring
Miscellaneous
Catch Up Post – April 12, 2016
Time to clear the queue a bit. Enjoy these gems!
- Pile Dynamics Releases Complimentary Update of GRLWEAP Program – Pile Buck Magazine – pile driving, marine construction, deep foundation
- North Salt Lake Passes Landslide Ordinance – Source: The Salt Lake Tribune via AEG Insider
- Rotting Oaks Lead to Hazardous Voids in Indiana’s Mount Baldy Sand Dune – Source: Terradaily.com via AEG Insider
- Soldier pile excavations in Seattle designed with DeepEX – Source: DeepExcav
- Santa Clarita Landslide Buckles Road, Prompts Indefinite Closure – Source: CBS Los Angeles
- The part of the SR 99 tunnel built without Bertha – Source: WSDOT Alaskan Way Viaduct Project Page
- China landslide: Man-made, 330-foot mountain of waste collapsed amid rains – Source: Chicago Tribune
- City of Burien releases full geotechnical report on Dec. 8 landslide – Source: The Highline Times / Des Moines News
- More sinkholes expected at Seawatch, District to debate next steps
- ‘Ask Fugro’ campaign celebrates Fugro’s global ingenuity
Miscellaneous
World Trade Center Slurry Wall to Become Part of Museum
The only portions of the World Trade Center towers that survived the attack on 9/11 were the basement slurry walls, part of the original shoring and foundation system. The National September 11 Memorial and Museum at the World Trade Center that is currently under construction will preserve a portion of that wall making it the largest exhibit the museum will offer. The wall section displayed will be 62-ft by 64-ft.
The existing slurry walls are being incorporated into the foundation system of the new facility but not without some improvements. The are adding some kind of foundations improvements to stabilize the toe of the walls, the New York Times article calls them caissons, but I don’t know if its a tangent or secant wall or something else. They are also lining them with additional concrete and reinforcement in front of the walls along with additional tiebacks to stabilize them. In the portion of the wall that will be displayed, a counterfort wall will be constructed behind it and new tiebacks will be installed on the front. Work for the counterfort wall will be done by hand in order to avoid the existing tieback cables. All of the existing tiebacks will be left intact. Check out the NY Times article for a great graphic showing the system. (Illustration by New York Times)
Failures
Major Slope Failure at Yeager Airport in West Virginia
There was a significant slope failure at the Yeager Airport near Charleston, West Virginia last week. A 2005 project to create an Engineered Material Arresting System (EMAS) at the end of the runway required a […]