Safety Assessment Method of Flood Defences for Flow Sliding

Flow sliding of submerged slopes in front of dikes can affect the reliability of flood defences. The occurrence of flow sliding may result, sometimes with delay, in a failure mode and consequent flooding. The current safety assessment method for flow sliding does not consider the interaction between flow sliding and failure modes which can cause...

Finite Element Modelling for Earthquake Loads on Dykes

In the last decades, induced earthquakes were caused by the extraction of gas in the Dutch province of Groningen. Both magnitude and frequency of these earthquakes are expected to increase in the following years, causing a threat for the flood defence system. To guarantee the safety against flooding, it is required to take the influence of...

Earthquake analysis of quay walls

In this thesis the impact of an earthquake on quay walls located at the Euromax terminal of the Port of Rotterdam is analyzed. A quay wall is a soil retaining structure where ships can moore and transfer goods. Seismic behaviour of two different types of quay walls are investigated and compared by performing a seismic analysis on the Euromax...

Reliability analysis of a hydraulic fill with respect to liquefaction and breaching

A recently reclaimed site in the Port of Rotterdam will serve as location and foundation of an LNG terminal. LNG (Liquefied Natural Gas) is recognized as hazardous material and underlies strict safety requirements. As part of the safety assessment of the entire installation, a specific analysis had to be carried out concerning the geotechnical...

Bepalen van de veiligheid tegen het optreden van een zettingsvloeiing

Momenteel wordt er hard gewerkt aan het VINEX-project Nesselande. Deze VINEX-locatie ligt aan de rand van het Groene Hart, ten noordoosten van Rotterdam. Er zullen in de komende jaren meer dan 5.000 woningen verrijzen. Een onderdeel van dit project is de uitbreiding van de bestaande Zevenhuizerplas met ongeveer 100 ha. Het diepste gedeelte van...

Flow slide failure of excavated subaqueous slopes

Unexpected failure of subaqueous excavated slopes in the form of flow slides is considered in this graduate study. Excavated slopes are not the same as slopes constructed by means of hydraulic fill. Several recent flow slide failures in sand borrow pits, together with qualms in engineering practice about not knowing exactly what fundamental...

Liquefaction and transport of mud on a sloping bed caused by waves

The seabed of many coastal and estuarine areas in the world mainly consists of mud. The interest in the complex behaviour of mud has increased considerably the last few decades, because mud has become more and more a menace to the environment. Contamination o f mud has infertalized agricultural land and with the increase of harbor activity,...

Liquefaction and erosion of mud due to waves and current: Experiments on Westwald Clay

A research project was carried out at the Delft University of Technology in order to study the interaction between waves as weil as a current and a muddy bed. For this purpose several experiments were made on two artificial clays, namely China Clay and Westwald Clay. The results of the experiments on China Clay were reported by De Wit (1994). In...

Liquefaction and erosion of mud due to waves and current: Experiments on China Clay

A research project was started at the Delft University of Technology in order to study the interaction between waves as well as a current and a muddy bed. For this purpose several experiments were made on artificial clays. In the present report only flume experiments on China Clay are discussed. In the experiments made special attention was paid...