A probabilistic framework for the quantification of vegetation effects on the failure mechanisms of Dutch river dikes

River floods are becoming increasingly devastating because of climate change (more frequent and extreme rainfall), population growth and the increasing economic importance of river basins. This situation requires maintenance and strengthening of flood-defence systems.<br/><br/>Adding certain types of vegetation at precise locations for their...

Reliability of willows for wave load reduction on river dikes: Design and maintenance principles for willow vegetation based on the quantified natural and knowledge uncertainties

Flood defenses are important to keep large parts of the Netherlands dry. These primary flood defences<br/>are every twelve years assessed on safety during the Dutch national safety assessment. In 2017, the new<br/>safety standards (WBI2017) were introduced. These stricter standards caused that in total 251 km of the<br/>primary flood defences...

Reliability of a dike influenced by a building: Development of a probabilistic method for slope stability of a dike containing a building inside the soil profile

In this research the reliability of dikes are studied that are influenced by the presence of buildings. Along many Dutch dikes (residential) buildings are present. These buildings may influence the reliability of the dike positevely and or negatively. In this study a probabilistic method is developed to determine the influence of a building,...

Assessment of the consequences of higher safety standards for flood defences along rivers in The Netherlands

A large part of the flood defences in The Netherlands does not meet the present safety standards. In 2014 the delta programme has proposed new safety standards, which are based on the flood risk approach. These new safety standards will for a lot of river dikes be stricter than the currently prevailing safety standards. A lot of work has to be...

Reliability analysis of the Red River dikes system in Viet Nam

This dissertation presents the applications of probabilistic-based frameworks in geotechnical and hydraulic engineering, for the assessment of the Red River dikes in Viet Nam. Dike along rivers often spread over the deltaic environment and its earthen structures are parts of a long civilian history, from hundreds to thousands of years....

Cost optimal river dike design using probabilistic methods

This research focuses on the optimization of river dikes using probabilistic methods. Its aim is to develop a generic method that automatically estimates the failure probabilities of many river dike cross-sections and gives the one with the least cost, taking into account the boundary conditions and the requirements that are set by the user....

Cost optimal river dike design using probabilistic methods

This research follows a fully probabilistic approach in order to estimate the optimal design for a river dike cross-section, taking into account the investment costs. From the theory studied, the failure mechanisms that contribute most to the failure of river dikes are identified. These are overflowing, wave overtopping, piping and inner slope...

Reliability-based analysis of river dikes during flood waves

Reliability and risk analyses are basic approaches, nowadays, for flood risk assessments in European countries such as the Netherlands, German, United Kingdom, etc. The methods also receive a lot of interest in developing countries. By considering uncertainties for both load and strength variables, the probability of failure for each element of...

SBW Wave overtopping and grass cover strength: Preditions of Prototype Tests

Overview of overtopping with focus on river dikes. Realtin with sod density.

Updating piping probabilities with survived historical loads

Piping, also called under-seepage, is an internal erosion mechanism, which can cause the failure of dikes or other flood defence structures. The uncertainty in the resistance of a flood defence against piping is usually large, causing high probabilities of failure for this mechanism. A considerable part of this uncertainty is of epistemic nature...

The bergambacht deformation prototype experiment in a broader perspective

In the nineties, the stability of the Dutch river dykes along the Rhine could not be guaranteed. Hence many people were evacuated. None of the dykes failed and the damage was mainly restricted to the evacuations costs. Several recommendations were made to anticipate the treats of the near by future. Within this framework a prototype experiment...

Probabilistic design and risk analysis for the Duong river dike in the Red River delta in Vietnam

Traditionally, the design of sea and river dikes in Vietnam is primarily based on a water level with a particular frequency of being exceeded. The frequencies of exceedence of design levels and governing discharge are widely regarded as constituting a standard for the safety of the region protected by the dikes and are interpreted in terms of...

Stad aan de rivier

Dit afstudeerverslag omvat de studie naar de toepasbaarheid van een multifunctionele waterkering aan de rivier 'de Waal' in Zaltbommel. Zaltbommel kampt met een tekort aan bouwgrond voor woningbouw. Als de woonwijk 'de Waluwe' in Zaltbommel-zuid in hetjaar 2000 is volgebouwd heeft de gemeente geen enkele ruimte meer beschikbaar voor woningbouw....

Improvement of slope stability of dikes by application of geotextile or geogrid materials

The low-lying countries as The Netherlands are strongly dependent on good (safe) river and seadefences. Driven by the necessity to withstand the water, during centuries the engineers built up their knowledge on hydraulic engineering, and particularly on constructing of dikes and proteetion measures. The design of these dikes has been carried out...