@article{oai:kitami-it.repo.nii.ac.jp:00007708, author = {木村, 祐輔 and 渡邊, 康玄 and 小泉, 健太 and 永多, 朋紀 and 赤堀, 良介}, journal = {河川技術論文集}, month = {Jul}, note = {In recent years , large-scale flooding has been increasing due to concentrated heavy rain. The outlet of a dry dam is located at the same height with the riverbed , so a dry dam assumedly gives less impact on water environment. One of the problems of a dry dam is that drift wood may stop up the dam opening at the time of floods and cause the dam to overflow and/or break down. However , it has not been clarified how drift wood accumulates in a dry dam reservoir. The purpose of this study is to look into the way drift wood accumulates by examining how it flows down the river and how it moves in the reservoir at the time of floods . First , video clips of flowing wood were analyzed. It was shown that the amount of the flowing wood is the largest at the beginning of floods. Second , we had a field work to investigate where in the reservoir the flowing wood accumulates. It was found out that the wood is most likely to accumulate at the uppermost point of the peak water level.}, pages = {341--346}, title = {洪水時での流木流下特性と流水型ダム貯水地内における流木集積状況}, volume = {17}, year = {2011} }