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.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME A: Engineering and Management of Fresh-water Systems : On assessing the potential for debris flows to damage pipeline river crossings
On assessing the potential for debris flows to damage pipeline river crossings
Author : Roger Bettess, C. Lauchlan
The purpose of the work described in this paper is to provide a method for assessing the potential for erosion at pipeline river crossings as a result of debris flows. Pipelines are commonly buried under the bed of rivers and streams. The depth of burial under the bed of the channel has to take account of potential erosion during the lifetime of the pipeline. For stream and rivers subject to normal processes of sediment transport methods are available to determine the scour that might take place, see for example, Melville and Coleman (2000). In steep mountainous areas, however, channel may be subject to debris flows. In debris flows the depth of erosion may be larger that occurs with the normal processes of sediment transport. In areas prone to debris flows, the formation of a debris flow may cause erosion of the bed of a stream and lead to pipeline exposure, pipeline rupture and then to the release of the product into the environment. To avoid such an incident, which may be potentially damaging to the environment, there is a need for a method to assess the potential for debris flows occurring at the location of a pipeline crossing.
File Size : 345,042 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 32nd Congress - Venice (2007)
Article : THEME A: Engineering and Management of Fresh-water Systems
Date Published : 01/07/2007
Download Now