Performance of steel open ended pile driveability prediction methods in dense sand: Evaluating pile driveability models and improving driveability predictions of a recent static axial capacity approach

Inefficient installation of pile foundations may lead to high risks of material damage, inadequate pile capacity, and time delays that can have significant financial implications to any kind of project, both onshore and offshore. Therefore, there is high demand for a comprehensive driveability analysis that considers key aspects of the...

Homogeneous detached composite breakwater: CFD study of the design sensitivities in the 2D geometrical layout using a detached homogeneous low-crested structure to reduce sea wall overtopping

In this research OpenFOAM is used to model and determine the complex hydrodynamic behaviour of a Homogeneous low-crested structure (HLCS) consisting of cubipod artificial concrete elements. The validated model is used to gain insight in the design sensitivities of a two dimensional cross sectional layout to reduce sea wall overtopping. HLCS and...

Validation of aero-hydro-servo-elastic load and motion simulations in BHawC/OrcaFlex for the Hywind Scotland floating offshore wind farm

Climate change, as a result from global warming, requires an energy transition: the reduction of greenhouse gas emissions from fossil fuels and a radical innovation of the global energy system to proceed apace. Offshore wind is an important source of clean, renewable energy, and it plays a key role in the transition. 80% of the worldwide...

Production Biospheres: A new production space in Hembrug

The project named production biospheres created a process design aimed on the adaptive reuse of the Plots In The Woods site on the Hembrug terrain near Zaandam. The landscape and urban design for the site is based on methods used by landscape architects and ecologists based on the three terms cultivate, stage and set up, not just creating. The...

Design and fabrication of a measurement interface for smart IoT sensors: Signal generation and hardware control

This project is to design and implement a reconfigurable measurement interface for Internet of Things sensors, for the Microelectronics Department of the Delft University of Technology. This thesis will discuss the functionality and design process taken in designing such a reconfigurable measurement interface, focusing on generating signals and...

Designing a test set-up to measure electrosurgical parameters: In Search of Design Requirements for an Electrosurgical Unit for Low-and-Middle Income Countries

Safe surgical and anesthetic care is not available to 5 billion people worldwide. Many problems that are encountered when providing surgical care are related to surgical equipment. A lot of surgical equipment is designed for the use in High-Income Countries (HICs) and not specifically for Low-and-Middle Income countries (LMICs). One appliance,...

Technical feasibility of a quick bridge replacement strategy with minimal traffic hindrance: On the retainment of existing foundations and the application of Advanced Cementitious Materials in an Accelerated Bridge Construction method

Bridges are a crucial part of the dense Dutch highway network. Almost 50% of the current bridges are built between 1960 and 1980 for an intended service life of 50 years and thus they might reach the end of their lifetime in the near future. This strongly indicates that a large challenge can be expected regarding infrastructural replacement.<br/...

Time-Dependent Capacity of Driven Displacement Piles in Sand

A time-dependent capacity increase has often been observed for driven displacement piles in sand. Long-term bearing capacity increase after dissipation of excess pore water pressure is referred to as set-up. Significant increases in axial capacity have been reported where the rate of set-up varied between 15 and 75% per log cycle of time. <br/>...

Accuracy wind set-up formula for irregularly shaped lakes with a strong varying water depth

This document includes a survey whether the wind set-up formula is valid and accurate in case of irregularly shaped lakes with a strong varying water depth. The formula is designed for a pure theoretical situation, the question is whether the formula is valid in situations that differ a lot from the theoretical one. The research is carried out...

Sediment transport in a fringing reef environment: Analysis using laboratory experiments and numerical modelling

Coral reefs are highly valuable structures in many respects and it is increasingly important to understand hydrodynamics and morphodynamics around reefs to be able to better protect them and their hinterland. Flume experiments were performed on a scaled fringing reef in the laboratory facilities of Deltares in Delft. The objective of this thesis...

On the possibility of simulating pile set-up in sand by means of centrifuge model testing

An increase over time in bearing capacity of displacement piles is often found in the field. This phenomenon is called pile set-up. The increase is predominantly caused by an increase in shaft resistance and is observed even until 1000 days after installation. In the Dutch situation, a proposed tightening of the design standard for pile...

Wi-Fi Direct based Smart Set-up (WDSS) in Lighting Systems

The Wireless Lighting Control System has drawn intensive attention in the recent years due to the potential for huge cost savings as well as increased convenience. Commonly seen Wireless Lighting Control Systems utilize Zigbee, KNX and Z-WAVE; whereas little attention has been given to Wi-Fi because of unsolved limitations. The purpose of this...

Modelling nearshore currents driven by waves and set-up gradients

During the fall of 2003, an extensive measurement campaign called the “Nearshore Canyon Experiment” (NCEX) was set up along the coast of La Jolla, California. The project site covered an area in which two submarine canyons are located, respectively La Jolla and Scripps Submarine Canyon. Over 20 institutions collaborated on recording the...

Modellering van extreme waterstanden veroorzaakt door opwaaiing toegepast op het Slotermeer: Een toetsing van het model voor overschrijdingswaterstanden in Friesland met een berekening van opwaaiing op het Slotermeer

De provincie Friesland wil een meer gestructureerde aanpak voor de bepaling van de hoogtes van boezemkades. Om goed te kunnen dimensioneren is een gedetailleerd model nodig met maatgevende waterstanden. Het huidige model, gemaakt door het Wetterskip Fryslân, is gebaseerd op 37 meetpunten verspreid over Friesland. Met de metingen zijn voor de...

Validity of method de Haan for wind speed and set-up

Failure of coastal protection due to flooding is mainly caused by a combination of high water level and waves. If one considers these as independent variables, the probability of failure can be calculated easily, but this would be an incorrect assumption. These two variables are de-pendent, so a method suitable for multivariate statistics is to...