急流河川を対象とした堤防強化対策の検討─堤防前腹付けエの効果について─
キーワード:
Qualitative reinforcement of levees,
Front levee widening,
Tedori River,
Jouganji River,
A steep river
2006 年 12 巻 p. 121-126
詳細
2006 年 12 巻 p. 121-126
Front levees widening are useful measures to strengthen river levee in a steep river. Two river model experiments of the Jouganji and Tedori Rivers in Hokuriku region are carried out and effect of a front levee widening was investigated. In the experiment,a two-dimensional, straight channel with a movable bed was used and the scale of the model is 1/100. Erosion width of a levee widening was investigated using the same hydrograph as the design discharge. As a result of experiment, we understood a region with a limit in the additional front levees widening. The experimental result is useful for the river channel design.
