Location
Chicago, Illinois
Date
04 May 2013, 10:30 am - 11:30 am
Abstract
In this case study, the sliding of a riverbank during construction of a water intake facility in Tennessee was investigated and analyzed. The construction of the project involved the installation of 2-36 in. diameter intake pipes from the wet well to the river inlet which were 290 ft apart. An open cut excavation from the river inlet to the riverbank toe was used to connect the inlet to the tunnel-installedintake pipes on the land side. During the excavation, a 25 ft wide slide, which 4 months later widened by another 15 ft, developed to the crest of the road on the riverbank. Consequently, a concern developed for the safety of the roadway. The geometry of the slopes and the cuts, pre- and post-construction geotechnical subsurface investigation, construction history, and sliding conditions were examined for the causes of the riverbank instabilities. The fundamental cause of the slides was the undermining of the latent bedrock surface from subaqueous excavation into the riverbank.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
7th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2013 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Marino, Gennaro G. and Osouli, Abdolreza, "Bank Instability Problems Associated With the Riverside Construction" (2013). International Conference on Case Histories in Geotechnical Engineering. 7.
https://scholarsmine.mst.edu/icchge/7icchge/session04/7
Bank Instability Problems Associated With the Riverside Construction
Chicago, Illinois
In this case study, the sliding of a riverbank during construction of a water intake facility in Tennessee was investigated and analyzed. The construction of the project involved the installation of 2-36 in. diameter intake pipes from the wet well to the river inlet which were 290 ft apart. An open cut excavation from the river inlet to the riverbank toe was used to connect the inlet to the tunnel-installedintake pipes on the land side. During the excavation, a 25 ft wide slide, which 4 months later widened by another 15 ft, developed to the crest of the road on the riverbank. Consequently, a concern developed for the safety of the roadway. The geometry of the slopes and the cuts, pre- and post-construction geotechnical subsurface investigation, construction history, and sliding conditions were examined for the causes of the riverbank instabilities. The fundamental cause of the slides was the undermining of the latent bedrock surface from subaqueous excavation into the riverbank.
