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Assessing internal erosion
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630).
2007 (English)In: International Water Power and Dam Construction, ISSN 0306-400X, Vol. 59, no 11, 30-34 p.Article in journal (Refereed) Published
Abstract [en]

The majority embankment dams in Sweden are composed of widely graded glacial moraines in the core, protected by the filters of sand and gravel. However, it is reported that several incidents of sinkholes in Swedish embankment of which attributed to internal erosion in the dam body. Addressing this issue, an investigation is carried to seek to a more discriminatory tool can be derived for assessing potential for surfacing internal erosion in embankment dams with widely graded glacial cores. The Foster & Fell filter testing method for dams makes it possible assessing the filter performance of existing embankment dams with regards to the no, excessive and continuing erosion boundaries in terms of a concentrated leak. The method address the potential for surfacing internal erosion in moraine core embankment dams with levels from high, increased or neutral. With further development of this method, it will provide a qualitative indication of the potential for sinkhole development.

Place, publisher, year, edition, pages
2007. Vol. 59, no 11, 30-34 p.
Keyword [en]
Erosion, Glacial geology, Gravel, Sand
National Category
Geotechnical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-155562Scopus ID: 2-s2.0-36849092761OAI: oai:DiVA.org:kth-155562DiVA: diva2:761747
Note

QC 20141107

Available from: 2014-11-07 Created: 2014-11-07 Last updated: 2014-11-07Bibliographically approved

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