木曽川の局所洗掘箇所における発生要因の分析
キーワード:
local scouring,
river management,
generating factor,
river-bed degradation layer of clay,
physiographic factor
2013 年 19 巻 p. 165-170
詳細
2013 年 19 巻 p. 165-170
Near 37km of Kisogawa River, local scouring is advancing and the depth has reached about 20m at the maximum. Advance of partial scouring worries about the influence on a river management side. However, the mechanism of partial scouring is unknown.
In this Study, since it contributes to planning of the measure against local scouring, we investigated of local scouring near 37 km of Kisogawa River. We present the situation of investigation examination as the first report. Based on the result of investigation, we presumed the generating factor of following three local scouring. ①Advance of river-bed degradation ②Exposure and exfoliation of a layer of clay ③Physiographic factor
