Abstract
There are many small privately owned agricultural reservoirs in Hokkaido that have not been evaluated for safety, and it is often difficult to determine the necessity and priority of repairs because sufficient research costs cannot be spent on them. In this study, we attempted to propose a method to determine the shear strength (c, φ) of the embankment soil and to easily evaluate the stability of the embankment without conducting the relatively large-scale geological survey that is generally used to evaluate the current stability of the embankment. As a result of examining 34 agricultural reservoirs in Hokkaido that have been surveyed so far, we concluded that it is quite possible to determine the shear strength of the embankment soil using the results of a simplified dynamic cone penetration test and to easily evaluate the stability of the embankment. We believe that this result will contribute to improving the maintainability of small agricultural reservoirs, which are one of the agricultural infrastructures.
