Author
Valizadeh, Hadi, Ecemis, N., Sarica Leclerc, R. Z.
Publication Date
2024-09
Publication Place
-
ASTM
Subject
Earth dams, Filter design, Internal erosion, No-erosion filter test, Static and dynamic loading
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
0149-6115
Record ID
0f1c119e-2079-43ff-977c-918a869728d3
Library Location
Civil Engineering
Date
2024-09
Notes
TÜBİTAK
Sample Text
Erosion-induced piping is the primary cause of failure in embankment dams’ bodies and foundations. The filter is a principal part of an earth dam, owing to the crucial role of this layer in
protecting the clayey core from erosion. Erosion is the process by which soil particles migrate
due to an interior fluid flow and is recognized as a significant hazard for earthen constructions.
Designing a proper filter-soil system can regulate and seal undesirable cracks that may form in
the impermeable core due to nonuniform settlements, extreme water levels, or earthquakes. In
this study, a No-Erosion Filter (NEF) test device, which still seems to be the most reliable filtersoil system design, has been adapted to evaluate the performance of the filter sand of two
dams under static and dynamic loading conditions. The outcomes were compared with the
several filter design criteria in the literature, and it was found that the filter's design approach
using the available criteria may not always align with the NEF test results. Therefore, a precise
understanding of fluid–particle interactions is necessary to design and operate earth dam
filters. The dynamic excitation can change hole pressure distribution and cause erosion even
after steady-state conditions under static situations. Consequently, the effectiveness of filters
under static conditions does not necessarily translate to satisfactory performance when
exposed to dynamic loading.
DOI
10.1520/GTJ20230419
Cilt
47
