水路全幅型階段式魚道の減勢工に関する基礎的研究

概要

論文の詳細を見る
Summary : First,flow characteristics at vicinity of downstream connecting part were investigated installing five different models. As a result,toe depth hml and so on varied and related expression was shown with slope I of fishway and various models.It is confirmed that hml corresponded well with entrance depth of jump occurred at downstream vicinity. The depth hml would be very much useful in designing depth and length of stilling basin of full width pool-and-weir fishway. Next,since the downstream flow depends on upstream condition,thus flow at vicinity of upstream connecting part was also investigated changing upstream bed elevation with top of uppermost weir(W0 ). Characteristics of the distance of transition boundary from brink and its depth were become clear and related expression was shown with I and W0.
2010-02-10