Problems with cast-in-situ concrete piles: A study on the possible causes of excessive bleeding

First of all, an overview was created of different problems that can occur by the construction of cast-in-situ concrete piles, discussing the mechanisms that cause these problems. From the overview it was concluded that little information is present about the exact cause of excessive bleeding. Two possible causes were identified, excess pore...

The Geotechnical Bearing Capacity of Old Timber Piles

In this thesis the geotechnical bearing capacity of old timber piles in Amsterdam is studied. This is necessary because many structures such as quay walls, bridges and houses in the (historic) city centre of Amsterdam are founded on timber piles with ages ranging between 80 and 300 years old. The assessment of the foundation is currently done...

Dry Deep Soil Mixing Soil-Cement column panels as bottom struts for excavation support: Revising of design methodology in Scandinavia

Deep Soil Mixing is an often-applied technique in the reinforcement of embankments, but little has been done to investigate and understand its behavior when used in excavation projects. The present research presents a database of the results of previous studies on the Deep Soil Mixing technique in Scandinavian soils. An expression that can...

Circular building foundations: A structural exploration of the possibilities for making building foundations contribute to a circular economy

This research investigated how traditional foundations of buildings can become circular and thus contribute to a circular economy. The current linear take-make-dispose economy results in waste, exhaustion of finite natural resources and environmental degradation. A circular economy is one way to cope with these trends. This type of economy is...

Use of InSAR data for building deformation monitoring

This thesis explores the use of InSAR data for building monitoring. The area of main interest is the city centre of Amsterdam, where quay wall replacements are necessary on a large scale. In Amsterdam, the foundation quality needs to be checked before construction activities nearby are performed, such as a quay wall replacement. Levelling...

Contributions of a time-dependent 3D coupled analysis of a system of relief wells

The maintenance and improvement of river embankments plays a crucial role in granting the safety and ensuring the quality of life of the inhabitants of the Netherlands. While the threat posed by storm surges has been greatly reduced since the implementation of the Deltaworks, riverine areas in the west of the country are characterised by the...

Pile foundations in the Netherlands: an analysis of the 4D/8D method through numerical modelling

TheNetherlands is a densely populated country and is located in an areawhere the shallowsubsurfacemainly consists ofHolocene and Pleistocene soils. To build permanent structures, enough bearing capacity is needed to provide sufficient support for these structures. However, Holocene (soft) soils typically do not provide sufficient support. In the...