Monotonic Lateral Monopile Response in Weak Rock and the Influence of Crushed Rock due to Impact Driving
C.Q. van Alphen (TU Delft - Civil Engineering & Geosciences)
Ronald B.J. Brinkgreve – Graduation committee member (TU Delft - Geo-engineering)
Kenneth Gavin – Graduation committee member (TU Delft - Geo-engineering)
A. Tsouvalas – Graduation committee member (TU Delft - Dynamics of Structures)
S. Brinkman – Graduation committee member
G. Chortis – Mentor
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Abstract
This thesis describes the investigation of the lateral monopile response in weak rock and the effect of a zone of crushed rock that is induced by driven installation. The goal of the investigation is to study the impact of the weaker zone around a monopile on the lateral response. The thesis focuses on the modelling of a monopile in a finite element model to examine the effect. The modelled monopile is compared to field tests that were done in previous research to be able to benchmark the model. To full-fill the research objective several steps were taken. The research can be divided into four parts to get to the final conclusion, being a literature review and three different models that are set up. The goal of the literature review and the two model in 2D are to act as a basis for the setup and inputs of the 3D model. The 3D model can then assess the effect of a crushed zone on the lateral capacity and stiffness response of the pile.
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