Data poor environments: Uncertainty propagation in hydrodynamic modelling

The objective of this study is to propose a method that is able to deal with data poor environments within coastal studies. Numerical models are useful tools to get insight in the coastal processes of the system being modelled. Inaccurate or poor input data leads to inaccurate or even incorrect model results. By stochastic modelling insight is...

Understanding and modeling the process of resuspension of fines in the coastal zone; case Khalifa Port

=Introduction= Worldwide there is an increasing amount of dredging activities, due to increasing demand for transport of goods over the world. These project are more and more near sensitive nature reserves and thereby a potential threat of biodiversity; which is a major concern for port developers, authorities, environmental organizations and...

Reduction Barrier: A cost effective solution for safety, shipping and the environment? Case Study for the Western Scheldt

Flood protection of the land around an estuary has been important for the Netherlands since the floodings of 1953. There are several types of possible solutions. For example; levee heightening, construction of a dam or a storm surge barrier. All these solutions have certain disadvantages, like costs or environmental impact. Another option is a...

Spatial variation in dike safety management for uplift

Development of a systematic approach to include the spatial information of point measurements.

Flexible Quay Wall Structures for Container Vessels

Traditional quay wall structures are not very flexible, because they are often hard to adapt and to reuse. However, changes in the container shipping market, international conflicts and new generations of vessels are some examples that could drive the desire the relocate or adapt quay wall structures. The objective of this thesis is to design a...

Turbulence in the wake of a roughness patch

Little research was done in the past concerning the propagation of three dimensional effect in shallow wake flow caused by a roughness patch. Today’s research on related subjects is dominated by emerging obstructions in shallow water where the flow can be assumed as (quasi) two dimensional. However the relevance of a submerged obstruction with...

Study on Sedimentation and Effects of Mitigating Measures at Port of Mar del Plata, Argentina

Problem definition The city Mar del Plata has one of Argentina's largest ports and biggest seaside beach resort. After the construction of the port, a steadily growing sandbank appeared in the port entrance and considerable erosion occurred on the northern beaches. To warrant the accessibility of the port, frequent maintenance dredging is needed...

Coastline modelling with UNIBEST: Areas close to structures

Coastline modeling with UNIBEST: Areas close to structures In the world of coastline modeling there are several ways to predict coastline development. One of those is with the use of single line modeling software. This kind of modeling is rather basic, straight forward and fast, but it lacks some detail of different processes taking place....

Sedimentation in reservoirs: Investigating reservoir preservation options and the possibility of implementing Water Injection Dredging in reservoirs

Sedimentation in reservoirs is a consequence of constructing a barrier in a flowing river, which results in a decrease of the transport capacity of the river. The storage capacity of the reservoir decreases due to the accumulation of sediments and the river downstream starts to erode due to the disturbance of the sediment balance. Water...

Study on the design of barriers in the Tien River estuary and the upstream effects due to closure

The Mekong Delta is located in the South of Vietnam, where the Mekong River flows into the East Sea. The Mekong Delta is responsible for producing half of the national food volume for Vietnam. Socio-economic and agricultural development in particular, have encountered several restrictive factors though: decreasing amount of agricultural land,...

New canalization of the Nederrijn and Lek: Design of a weir equipped with fibre reinforced polymer gates which is designed using a structured design methodology based on Systems Engineering

The Nederrijn and Lek are presently dammed by three weirs, build in 1960 till 1970, which are located near the village of Driel, Amerongen, and Hagestein after which they are named. Weir Driel regulates the distribution of water at the IJsselkop for dammed conditions (discharges lower than 2350 m3/s at Lobith). A minimum discharge of 285 m3/s...

Hydraulic analysis of a flood channel from the Afgedamde Maas to the Biesbosch and Bergse Maas

Due to climate change, it is expected that the design river discharge of the Rhine will increase from 16000 m3/s in 2015 to 18000 m3/s in 2100. In order to make the Dutch water system climate proof, dikes must be reinforced and raised and/or the design water level must be lowered. In this study, a flood channel as a measure to decrease water...

Sediment transport on various depth contours of the 'Holland Coast' shoreface

The scientific foundation to maintain the Holland Coast shoreward of the -20m depth contour is limited. It is assumed that profile perturbations shoreward of the -20m depth contour influence the coast within a time scale of 50 to 200 years. Hence, seaward of -20m NAP dredging companies are allowed to dredge sand. The dredged material is amongst...

Effectiveness of Silt Screens

Dredging and reclamation works are known to generate significant amounts of turbidity. In most coastal zones around the world, the resulting clouds of suspended fine sediment bring along environmental risks. Dredging contractors take mitigating measures to prevent free spreading of turbidity, which is usually also demanded by their clients and...

A parametric study concerning estuary mouth dynamics and inlet closure

With the development of a process-based model (Delft3D) of the St Lucia Estuary inlet, a first approach is made with regard to the estuary mouth dynamics and closure mechanisms that are observed at St Lucia inlet. The purpose of this thesis is to get a better understanding of the hydrodynamic and morphological behaviour of the St Lucia inlet...

Port Master Plan for the Port of Beira, Mozambique

The port of Beira is an essential driver for economic growth in Mozambique. Its location, with strong connections to the hinterland, creates a promising future for the further development of the port. The port authority requires a new port master plan in order to optimise throughput over available ground and (wet) infrastructure, and to extend...