IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 1 - KEYNOTE AND INVITED LECTURES : Abutment Failure During Bridge Waterway Scour
Abutment Failure During Bridge Waterway Scour
Author : Robert Ettema and Joshua Fuller
This paper presents preliminary laboratory flume and field observations addressing the basic question? How do bridge abutments actually fail during abutment scour? The observations show that hydraulic and geotechnical processes interactively expose embankment and riverbank material to sequences of hydraulic erosion and geotechnical toppling failure at the abutment waterline, as well as scour of the channel bed or floodplain.Present design and monitoring practicesfor abutments do not address the combination of hydraulic and geotechnical processes that lead to both abutment erosion and failure modes. Also, present design practice for riprap protection of abutments may be inadequate. Consequently, existing abutments remain prone to erosion and failure during abutment scour. Moreover, some countermeasures likely are of limited effectiveness because they address only one of the two failure modes.
File Size : 441,837 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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