Towards contemporary erosion solutions
Publication details: [Sverige] : BIG – Branschsamverkan i grunden, 2022Description: 52 sISBN:- 9789198692686
With the increasing need for climate resilient infrastructure, an understanding of the erosion processes and designing adequate but environmentally friendly protection measures becomes increasingly more important. In Sweden, there are no clear national guidelines or methods to address this. Current guidelines include the design of traditional bed and shore protection in waterways which are often ecologically unsustainable, especially for smaller streams. This project aimed at mapping the current approaches in use at Trafikverket (The Swedish Transport Administration) for addressing erosion related issues near infrastructure. The behavior of the water filled soil (strength and drainage properties), the flow above and at the soil-water interface (hydraulic roughness, bed stress) are interdependent and evolve non-linearly. Meanwhile, the requirements of infrastructure have also changed. Mitigating solutions should be environmentally non-intrusive, cost-effective, and ideally prevented altogether. The state of the art for the prediction of the need for protection measures, the modelling of the extent of erosion in their absence and the different solutions available was investigated.