Record nummer 2287904
Titel Residual strength and profile of the Eemdijk full-scale test
Auteur(s) Leclercq, V.J.F.
Uitgever Delft : Delft University of Technology
Jaar van uitgave 2020
Pagina's 115 p
Online full text
Publicatie type Studentenverslag
Taal Engels
Toelichting (Engels) To reduce the flood risk of the Netherlands, the national standard was updated. Due to this 1100 km of levees need to be reinforced by 2028. Including a sheet pile wall in a levee permits to build higher, less wide levees, thus increasing the macro-stability. They can therefore be a design solution for urbanised ares. The Eemdijk experiment was setup to gain more insights into the pre and post failure strength of a dyke with sheet pile wall. During this experiment two full scale dykes were brought to failure, one with a sheet pile wall built in and one without. The water turning capacity of a dyke with sheet pile wall is dependent on the strength of soils after a large amount of strain has been mobilized. This is known as the residual strength. During laboratory testing on the subsurface clay layers of the experiment, the residual strength measured was not in accordance with what could be expected fromthe literature. This raises the question whether the Dutch organic clays behave differently as the predominantly mineral clays described in the literature, or whether the testing methods proved inadequate for themeasurement of residual strength of organic clays. This thesis tried to quantify the strength reduction of the soft soil layers of the experiment through a back analysis of the failure of the dyke without sheet pile wall.
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