Date
02 Jun 1988, 10:30 am - 3:00 pm
Abstract
Several failures of floodbanks caused by increases in water pressure and seepage in foundation soils during abnormal high floodwater conditions have been investigated. The particular type of failure which occurred depended upon the sequences of the foundation strata, the overall bank profile, and the height and duration of the floodwater. Both rotational and translational slides occurred in banks built on sands, peats and clays with underlaying sandy gravels. Breaches occurred when the cress was sufficiently lowered to allow substantial overtopping or where gaps developed at the ends of the translational slides. Development of erosion pipes in multi-layered soils led to both partial collapse and breaching of banks. The need to anticipate possible failure mechanisms when evaluating the effectiveness of flood defenses is emphasized.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, 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
Marsland, Arthur, "Failure of Flood Banks Due to Under Seepage" (1988). International Conference on Case Histories in Geotechnical Engineering. 21.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session3/21
Failure of Flood Banks Due to Under Seepage
Several failures of floodbanks caused by increases in water pressure and seepage in foundation soils during abnormal high floodwater conditions have been investigated. The particular type of failure which occurred depended upon the sequences of the foundation strata, the overall bank profile, and the height and duration of the floodwater. Both rotational and translational slides occurred in banks built on sands, peats and clays with underlaying sandy gravels. Breaches occurred when the cress was sufficiently lowered to allow substantial overtopping or where gaps developed at the ends of the translational slides. Development of erosion pipes in multi-layered soils led to both partial collapse and breaching of banks. The need to anticipate possible failure mechanisms when evaluating the effectiveness of flood defenses is emphasized.
