Numerical Modelling Of Pile Installation Using Material Point Method

Doctoral thesis (2019)

Authors

N. Thi Viet Phuong Geo-engineering - CEG
Research Group
Geo-engineering (CEG) (TU Delft)
Copyright: © 2019 N. Thi Viet Phuong
DOI
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https://doi.org/10.4233/uuid:5580c747-d8a1-464c-8db8-e16eb2a499f7
Pile installation Material point method Large deformation Grain crushing
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Published Date

2019

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Geo-engineering

Abstract

Structures and buildings built on soft soil require deep foundations often consisting of piles. Through the piles, loads are transferred to deeper soil layers which are capable to mobilise enough bearing capacity for the superstructure. During installation of a displacement pile, the soil around the pile gets distorted which leads to a change of stress, density and soil properties in the distorted zone. The quantification of change in soil properties, soil state and the influenced zone around the pile during installation are yet a remaining uncertainty in geotechnical engineering. This thesis examines the mechanisms that govern pile installation and subsequent loading by numerical analysis. The study focuses on jacked and impact hammer installation techniques in dry and fully saturated sand...