Searched for: subject%3A%22Dykes%22
(1 - 20 of 24)

Pages

List view
Grid view
document
Remmerswaal, G. (author)
Flood protection infrastructure requires constant investments to cover the increasing flood risk. However, due to over-conservatism in (dyke) safety assessments, poorly targeted investments can be made. Over-conservatism can be avoided by understanding the entire failure process, from the initiation of failure until flooding. Dyke slope...
doctoral thesis 2023
document
Varkey, D. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author)
The stability of six regional dyke cross-sections in the Netherlands was re-assessed using the random finite element method (RFEM), which explicitly accounts for the spatial variability of strength parameters. The RFEM assessments of the cross-sections were shown to result in significantly narrower response distributions than those obtained...
conference paper 2023
document
MUHAMMAD RAYYAN, Rayyan (author)
Using an expensive-to-evaluate numerical model, such as a finite element method (FEM) model, is deemed unavoidable in solving modern geotechnical engineering problems. At the same time, the application of reliability analysis in dealing with uncertainties (e.g. soil properties) is increasing rapidly. This could pose a time-wise problem for an...
master thesis 2022
document
Lengkeek, H.J. (author)
The Netherlands is inherently challenged by water, as a large part of the country lies below sea level and several major rivers in North-western Europe cross the country. The most prevalent form of protection from coastal and river floods in the Netherlands includes approximately 22,000 km of earthen dikes, of which 3800 km are primary flood...
doctoral thesis 2022
document
Liu, Yu (author)
Pearl river delta is undoubtedly the most promising area and a very dynamic tidal zone, especially in the southeast part of the delta, Zhuhai province, Modaomen estuary. The whole area of Zhuhai is a remote island scattered outside the mouth of the Pearl River，when after several generations of reclamation and these days, 20% of marshland in...
master thesis 2021
document
Remmerswaal, G. (author), Vardon, P.J. (author), Hicks, M.A. (author)
Due to a lack of large deformation dyke assessment models, primary failure mechanisms, such as inner slope failure, are often used as a proxy to assess the probability of failure of a dyke. However, a dyke continues to fulfil its main function unless, or until, flooding occurs. The Random Material Point Method (RMPM) is used here to investigate...
journal article 2021
document
van den Eijnden, A.P. (author), Schweckendiek, T. (author), Hicks, M.A. (author)
A kriging-based metamodelling approach for analysing the structural reliability of a sheetpile wall in a dyke is formulated. This specific problem is characterised by high target reliabilities ((Formula presented.)) in combination with a noisy and incomplete numerical model response. Starting from the original formulation of active learning...
journal article 2021
document
Molenaar, Floor (author)
With changing climatic conditions, droughts are expected to increase in duration and intensity. Under drying conditions, desiccation cracks can form in clay soil, which is often used as dyke cover and in some cases also for the core of the dyke. These desiccation cracks have a potential impact on the stability of dykes. The main objective of...
master thesis 2020
document
Esteban, Miguel (author), Roubos, Jochem Jan (author), Iimura, Kotaro (author), Salet, Jorrit Thomas (author), Hofland, Bas (author), Bricker, J.D. (author), Ishii, Hidenori (author), Hamano, Go (author), Takabatake, Tomoyuki (author), Shibayama, Tomoya (author)
The accurate modelling of overtopping of coastal defences by tsunami waves is of vital importance for the formulation of disaster management strategies. To improve knowledge of this phenomena the authors conducted experiments on coastal structure overtopping using bores that were generated by a dam-break mechanism. Three types of structures...
journal article 2020
document
Sun, Chuanzhi (author)
The Pearl River Delta (PRD) is a river dominated floodplain in southeast China. Long known as one of the country’s richest agricultural regions, in recent years it has also become known as one of the world’s most densely urbanized areas. Decreasing space for water through dyke-ring construction, channelization and urbanization has led to...
master thesis 2019
document
Teeuwen, Max (author)
The Netherlands has always been in close proximity to water, whether its rivers or the sea. This proximity to water and the need for land to settle and farm, led to vast amounts of land reclamation by constructing dykes along the water features to prevent flooding of the new earned land. This newly reclaimed land started to subside over the...
master thesis 2019
document
Remmerswaal, G. (author), Hicks, M.A. (author), Vardon, P.J. (author)
The material point method (MPM) is used to model both rotational and horizontal sliding failure mechanisms of dykes under external (water) loading. To model the different failure mechanisms, an external hydrostatic water pressure has been applied on the canal side of the dyke by applying a newly developed boundary condition. The boundary...
conference paper 2019
document
Hicks, M.A. (author), Varkey, D. (author), van den Eijnden, A.P. (author), de Gast, T. (author), Vardon, P.J. (author)
A case study involving the assessment and re-design of an existing dyke, founded on a layered soil, has compared deterministic analysis based on 5-percentile property values and a reliability-based random finite element analysis consistent with the requirements of Eurocode 7. The results show that a consideration of the spatial nature of soil...
journal article 2019
document
Garuti, Dario (author), Jommi, C. (author), Rijkers, Richard (author)
In the assessment of water defences for macrostability and backward erosion piping the design hydraulic load mostly refers to steady state conditions in equilibrium with the maximum river water level. In this contribution, we show selected results of coupled hydromechanical numerical analyses of a paradigmatic Dutch case, which demonstrate that...
book chapter 2019
document
Esteban, Miguel (author), Takabatake, Tomoyuki (author), Glasbergen, Toni (author), Hofland, Bas (author), Nishida, Yuta (author), Nishiazaki, Shinsaku (author), Stolle, Jacob (author), Nistor, Ioan (author), Takagi, Hiroshi (author), Bricker, J.D. (author), Shibayama, Tomoya (author)
In the aftermath of the 2011 Tohoku Earthquake and Tsunami Japanese tsunami protection philosophy now dictates that coastal defences should prevent the land that they protect from being flooded under a Level 1 event (with a return period in the order of about 100 years). To ascertain the overtopping mechanism and leeward inundation heights of...
conference paper 2018
document
Theodoridis, Matthaios (author)
This study was conducted in the framework of the Leendert de Boerspolder stress test. It focuses on the investigation the performance of the available constitutive models in describing the coupled hydro-mechanical response of peats and organic clays as observed during the stress test. The soil models that are considered are the Mohr-Coulomb...
master thesis 2017
document
Esteban, Miguel (author), Glasbergen, Toni (author), Takabatake, Tomoyuki (author), Hofland, Bas (author), Nishizaki, Shinsaku (author), Nishida, Yuta (author), Stolle, Jacob (author), Nistor, Ioan (author), Bricker, J.D. (author), Takagi, Hiroshi (author), Shibayama, Tomoya (author)
Following the 2011 Tohoku Earthquake and Tsunami, Japanese tsunami protection guidelines stipulate that coastal defences should ensure that settlements are shielded from the coastal inundation that would result from Level 1 tsunami events (with return periods in the order of about 100 years). However, the overtopping mechanism and leeward...
journal article 2017
document
Di Pietro, P. (author)
Recent studies show an increase in the population of beavers, nutria and other rodents in vast regions of central Europe over the last 15 years. Unfortunately, this caused in many instances considerable damage on large rivers along dykes and earthworks in the floodplain areas, leading to an increased risk of bank failures. However, most of these...
conference paper 2017
document
Mavritsakis, Antonis (author)
State of the art geotechnical engineering and project designare nowadays rigidly connected to the mindful adaption of the Eurocode. However, questions can be raised on the critical selection of the characteristic values for parameters such as the soil compressibility and permeability. The experiment conducted at Leendert de Boerspolder, where a...
student report 2017
document
De Gast, T. (author), Vardon, P.J. (author), Jommi, C. (author), Hicks, M.A. (author)
Regular dyke assessment is part of reducing the risk of flooding in the Netherlands. 18 000 km of dykes are assessed at regular intervals, of which 14 000 km are classified as regional dykes and their main aim is to defend polders from inundating. The methods of assessing regional dykes are strongly inter-twined with the methods of assessing...
conference paper 2015
Searched for: subject%3A%22Dykes%22
(1 - 20 of 24)

Pages

List view
Grid view