Introduction
The use of geogrids to anchor Sheet Pile Walls (SPW) is relatively new. In this approach, SPWs can be anchored with one or more geogrid layers. This type of SPW anchorage has benefits such as the possibility of prestressing the anchorage earlier during the backfilling stage, reducing horizontal deformation as a result. In addition, it is also possible to anchor the SPW continuously at several levels, making the design economic and allowing for the installation of piles through the geogrid anchors, providing greater project flexibility. The drawback of geogrid-anchored SPWs is that a relatively large amount of space is needed for the installation of the geogrids. Furthermore, the method is suitable for backfilling projects only and not for building pits with excavations.
This project looks at the behaviour of geogrid-anchored SPWs subjected to strip footing surcharge loading. For this purpose, the following was done:
- Full-scale field measurements in Krammer, Netherlands.
- Small-scale and medium-scale experiments at the Deltares Model Hall.
- FEM analyses.
A geogrid-anchored sheet pile wall
Geogrid anchored Sheet Pile Walls in Krammer, Netherlands. Surcharge load in the Krammer project for field measurements
Consortium
The consortium consisted of the following partners:
Private partners
- GeoTec Solutions, Netherlands
- Huesker GmbH, Germany
- Huesker BV, Netherlands
- Voets Gewapende Grondconstructies BV, Netherlands
- GMB Haven & Industrie, Netherlands
Knowledge Institutes
- Ruhr-Universität Bochum, Germany
- Deltares, Delft, Netherlands
Test set-up for small-scale experiments
Activities and products
| Activity | Product |
Initial study and trial projects. | Paper in the GeoKunst: Detert et al., 2019. |
Field measurements in an example project (Krammer), analyses measurements and FEM analyses. | Paper published in the GeoKunst: van Duijnen et al., 2020. Proceedings paper: van Duijnen et al., 2022 (accepted, to be published at EuroGeo 7, Warsaw, sept 2022). MSc thesis University of Bochum (Springher, 2018) and the accompanying presentation (Springher, 2018, Powerpoint) |
Small scale and medium tests in the Deltares Hall. | MSc thesis of TU Delft (Wittekoek, 2020) Paper published in the GeoKunst: Wittekoek et al., 2021. Journal paper accepted for Geosynthetics International: Wittekoek et al., 2023. In press. |
Numerical simulation small-scale tests Deltares | BSc thesis University of Bochum (Thielecke, 2020) and the accompanying presentation (Thielecke, 2020, Powerpoint) |
Numerical analyses full scale geogrid anchored SPWs |