Comparison of design methods for quay walls: Based on measured deformations in Eemshaven Groningen

The aim of this research is to investigate which design method results in the best approximation of the deformations of a quay wall consisting of an anchored combined wall with relieving platform, looking at the elastoplastic method and the finite element method. The elastoplastic method is performed with the program D-Sheet Piling and the...

Back analysis of deep excavation for the New Terneuzen Lock: An investigation conducted using a Python-Plaxis application and monitoring data from the field

The case study of the outer lock head of the New Terneuzen Lock is considered to investigate the behavior of the Boom Clay and to develop an automated method for improving the deformation predictions in a deep excavation format. The initiative to perform this study was the uncertainty in modeling the Boom Clay behavior during the design and the...

Collapse of the Grimburgwal, a historic quay in Amsterdam, the Netherlands

A quay wall directly next to a building, both dating from around 1870, collapsed along the Grimburgwal in Amsterdam, the Netherlands, on 1 September 2020. The historic quay wall consisted of a masonry wall, built of a timber deck supported by several rows of timber piles of about 12 m long. As over 200 km of such quays exists in Amsterdam and...

Effect of ballast retaining walls on the lateral resistance of railway tracks

In this study, the application of a retaining wall was proposed as a solution for reducing the lateral displacement of the ballast layer, particularly in sharp curves and bridges. In this regard, a series of single tie push tests were performed on panels with shoulder ballast widths of 300 mm, 400 mm, 500 mm with and without the presence of L...

The Observational Method for building pits in soft-soil conditions: A study on measurement-processing and feasibility of the Observational method Ab Initio approach.

In the Observational Method Ab Initio approach a flexible design and construction plan is established to allow anticipation to observational feedback during the construction phase. This way, the structural design can be optimized to the in-situ conditions which is beneficial from both safety and economic point of view. In the application of...

Diaphragm Wall Panels: Non-Linear FEM Analysis Of Forces In Construction Joints

The aim of this thesis is to investigate the behavioral differences of walls that have different load transfer mechanisms and identify a simple engi- neering model for a construction joint that connects these two different wall types.<br/>Within the text; First, the problem description is provided among with a simple yet reliable soil modeling...

Detailing Aspects of the Reinforcement in Reinforced Concrete Structures: Retaining wall (case study)

This thesis studies the impact of reinforcement detailing on the behaviour of a reinforced concrete structure. Using a retaining wall as a case-study, the performance of two commonly used alternative reinforcement layouts (of which one is wrong) are studied and compared. Reinforcement Layout 1 had the main reinforcement (from the wall) bent...

An investigation of the overlapping passive zones using a novel geotechnical centrifuge model

To improve the design of soil retaining walls in narrow trenches, a design optimization tool is introduced by Hosseinzadeh and Joosse (2015). This design optimisation tool is an intensification factor on the passive earth pressure coefficient Kp, that includes the effect of overlapping passive zones. The authors argue that the passive earth...

A Proposal for Some Modifications of EN 1997-1 Design Approaches

All Eurocodes are currently under a critical review, while the work for a second generation of codes are about to start in 2015. For the geotechnical design EN 1997-1 is facing high demands for harmonization and simplification of the present code. The paper presents some proposals for improving the code regarding ultimate limit state (ULS)...

Golfoverslag en krachten op verticale waterkeringsconstructies

Waterkering Harlingen: Kruinhoogte en belastingen op keermuur