Motovated Slurry Wall for Amsterdam Subway Station Case Study
In 1997 De Weger Architecten and Ingenieursbureau in The Netherlands requested an analysis of the slurry wall installation relating to the 23 meter deep excavation on the North-South Metro line (Rokin Station) in Amsterdam. The analysis had to provide insight into:
The FEA had already been done on this project, however the Company needed to validate the results with an industry expert.
A fully coupled pore fluid flow stress analysis, including all phases of the building process and a potential failure of the installation of the concrete floor, was carried out.
The analysis model contained dedicated soil material models tailored to the current ground conditions, including the permeability to accurately describe consolidation and ground water flow over time.
The analysis provided confidence in the proposed building method, which lead to the successful installation of the slurry wall. Specifically:
Figure 1: Clay and sand layers
Figure 2: Pore pressures after installation and excavation
Figure 3: Permanent deformations