Impact of Damages on the Stability and Reliability of Pattern-Placed Revetments: An analysis with use of a finite element model into the different types of damages for pattern-placed revetments under wave loading

Over time, degradation processes might cause damage to pattern-placed revetments. Examples of such damages are missing elements, deformation, and the loss of joint filling. However, little is known about the exact consequences of those damages. Therefore, when damage is observed during an inspection, it is estimated based upon experience what...

Submerged floating tunnel: The dynamic response due to fluid structure interaction

The submerged floating tunnel (SFT), also known as the Archimedes bridge or suspended tunnel, is a conceptual idea for a tunnel that floats in the water, supported by its buoyancy. The tunnel would be placed underwater, not too deep in order to avoid high water pressures, but deep enough for it not to be exposed to extreme weather conditions or...

Feasibility of curved pipe pull operations: A research based on a numerical model and physical experiments

Due to often existing subsea infrastructure or challenging seabed conditions, engineers are forced to design newnearshore pipeline trajectories that are not always in a straight line. Since subsea tie-in operations are often complex and relatively expensive, alternative methods like pulling pipelines into a curve are worthwhile. By means of this...

Deformable and energy absorbing protection against ship collision

The Netherlands is a country where people have to live with water, rather than fighting against it. This philosophy often requires interaction between infrastructure and waterways, where (hydraulic) structures are placed close to or even extending in the waterway, introducing the risk of ship collision. What makes this accidental load so...

Large diameter dolphin piles: The effect of the inner soil on their local buckling resistance

Even though for most hydraulic and geotechnical structures clear guidelines are available, those for flexible dolphins are still missing. Consequently, whether a design is safe is usually subject of debate. Economical dolphin piles are large diameter tubular piles, susceptible to local buckling. After installation the embedded part of these...

Local buckling of sand-filled steel tubes for combined walls

Bending behaviour of steel tubes has been examined in many research projects through the years, especially for empty ones. Also the infill and pressure effect in the tubes has been elaborately investigated but not much has been done on the effect that the sand infill has on the bending of the tubes. Combi-wall tubes are filled with sand during...

Performance-based seismic analysis of an anchored sheet pile quay wall

Ports are civil works which have a major societal and economic importance. Quay structures are infrastructural elements of primary significance for the functioning of a port system. The ability to economically design quay structures with sufficient seismic resistance is therefore of great importance when situated in areas that are prone to...

The feasibility of standardization of a mono-pile mooring facility for FSRU's

As the LNG market continues to grow internationally, Floating Storage and Regasification Units (FSRU’s) have become an increasingly important component as governments and private companies strive for faster, cheaper and more flexible means of re-gasifying. In order to have a FSRU mooring system which is equally fast deliverable, standardization...

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...

Polder Terminal: A risk based design

New container ports are mostly constructed on low lying coastal areas or in shallow coastal waters. The quay wall and terminal yard are then raised to a level well above mean sea level to insure safety against inundation. The resulting ‘conventional terminal’ requires large volumes of good quality fill material often dredged from the sea which...

A structural solution in reinforced concrete for the roof structure of the Al Ghubaiba ferry terminal

The city of Dubai has grown extensively in the last decades. The growth of Dubai’s infrastructure has not kept pace with the growth of the city itself, which results in traffic jams and overcrowding of public transport facilities. To make the Dubai area (city and suburbs) more accessible, a ferry network is being developed to provide...

Veldproeven op steenzettingen in Zeeland

Onderzoek naar liggerwerking bij steenzettingen

In het literatuuronderzoek is een samenvatting gegeven van de aspecten die een rol spelen bij de stabiliteit van steenzettingen en het daaropvolgende liggerwerkingsmodel. Het voornaamste verschil tussen de huidige ontwerprichtlijn voor taludbekledingen en het liggermodel is de samenwerking tussen aanliggende stenen; de klemming die in de meeste...