2019 Volume 7 Issue 1 Pages 207-212
It is important to capture driftwood or woody debris, in upstream areas to prevent debris flows from blocking downstream bridges. Specific details of the conditions of dams in Japan must be taken into consideration when investigating this issue. There have been recent proposals to use steel stakes as counter-measures to block woody debris at impermeable sabo dams. To design such a countermeasure effectively, it is necessary to clarify the mechanisms of woody debris capture implemented by the countermeasure. We propose a structure consisting of steel stakes for use at impermeable sabo dams. This proposal is based on experiments that take into consideration the rotation of woody debris at sabo dams and the mechanism by which woody debris is captured at the stakes.
