Author(s): Norio Harada; Yoshifumi Satofuka; Takahisa Mizuyama
Linked Author(s):
Keywords: Impermeable Sabo dam; Driftwood; Experiment; Steel stake; Debris flow
Abstract: It is important to capture driftwood in upstream areas to prevent debris flows from blocking downstream bridges. We must take the specific details of the conditions in Japan into consideration when investigating this issue. There have been recent proposals to use steel stakes as countermeasures to driftwood blockage at impermeable Sabo dams. To design an effective countermeasure that uses stakes to capture driftwood from debris flow, we must clarify the driftwood capture mechanisms implemented by the countermeasure. We proposed a structure composed of steel stakes for use at impermeable Sabo dams. Our proposal is based on experiments that take into consideration the rotation of the driftwood at Sabo dams and the actual mechanism by which driftwood is captured at the stakes.
Year: 2018