Large-Scale Field Tests With Flexible Slope Stabilization Systems

In the scope of a research project by the Commission for Technology and Innovation (CTI) of the Swiss Federal Department of Economic Affairs, Education and Research, large-scale field tests with flexible slope stabilization systems were performed in Winterthur, Switzerland under the direction of the Bern University of Applied Sciences in Burgdorf. For this purpose, a 13 x 15 m steel frame was filled with soil material and tilted up to 85° using a 500 to crawler crane. Different mesh and net coverings combined with a nail anchoring system were used to stabilize the soil material against instabilities near the surface. This article gives an overview of the test assembly and summarizes the results from the large-scale field tests performed. In addition, the retrograde calculation of the RUVOLUM dimensioning concept was verified. The large-scale field tests performed create an ideal foundation for a better understanding of the load bearing capacity of flexible slope stabilization systems and comparison of different meshes under same conditions as well for further developing and adapting them to project-specific requirements.