Cold Regions Engineering: Inclusion of Freeze-Thaw-Induced Soil and Bank Erosion in CoE Planning, Engineering, O&M, and Model Development

摘要

Soil freeze thaw (FT) processes directly affect soil erodibility and bank-failure susceptibility (Fig. 1) (Gatto et al. 2001, Simon et al. 2000) and thus have substantial impact on shoreline or bank evolution, system-wide sediment management, reservoir infilling, levee stability, and sediment-bound contaminant transport within watersheds. This technical note outlines how FT cycling affects overland soil erosion and bank failure. In so doing, it alerts Corps planners, designers, O AND M personnel, and water-resources modelers to the importance of knowing the magnitude of these effects on sediment detachment, failure, and transport in such cold-climate, navigable systems as the Mississippi, Illinois, Ohio, Missouri, Susquehanna, Delaware, Columbia, and Sacramento Rivers, and the Great Lakes and their connecting channels.