TY - JOUR
T1 - 2017年7月の九州北部豪雨による土砂災害
T2 - Sediment-related Disasters by a heavy Rainfall in the northern Part of Kyushu-Island, Japan in July 2017
AU - Mizuno, Hideaki
AU - MARUTAN, Tomonori
AU - KAIBORI, Masahiro
AU - JITOUSONO, Takashi
AU - OHNO, Hiroyuki
AU - SHIMIZU, Osamu
AU - Kubota, Tetsuya
AU - UE, Hirotaka
AU - KANAZAWA, Akito
AU - KAWANO, Takanori
AU - KOGA, Syozo
AU - KOBAYASHI, Hiroki
AU - KOBAYASHI, Takuya
AU - SAKASHIMA, Toshihiko
AU - SAKATANI, Yukihiko
AU - SAGARA, Wataru
AU - SHINOHARA, Yoshinori
AU - SUZUKI, Yamato
AU - TAKAGI, Masayuki
AU - SHIMADA, Eiji
AU - NAKANO, Koji
AU - FUJISAWA, Yasunori
AU - YAMAGUCHI, Kazuya
AU - YAMADA, Yuchi
PY - 2017/11/15
Y1 - 2017/11/15
N2 - An extremely heavy rainfall was observed in the northern part of Kyushu, Japan in July 2017. For example, the highest daily rainfall was 803 mm on July 5, 2017 at Kurokawa, Asakura-City of Fukuoka Prefecture. The heavy rainfall caused many slope failures, debris-flows, sediment-flows and floods, which killed 37 people at the current stage. Phenomena such as surface slope failures and sediment-flows were concentrated around the eastern part of Asakura-City. They flowed down as floods and damaged many residential areas. The bedrock where the phenomena occurred was not only weathered granite but also weathered schist included in Sangun metamorphic rocks. It is a very important feature that enormous driftwood has discharged by sediment-flows, floods and so on. Some large failures also occurred out of Asakura-City. In Hita-City of Oita Prefecture, a large failure with a width of ca.200 m, a length of ca.350 m and a depth of ca.15 m occurred and blockaded Ono-river. Because this disaster caused serious damage to surrounding areas, the comprehensive countermeasures such as construction of sabo-facilities and setting warning-evacuation system must be needed.
AB - An extremely heavy rainfall was observed in the northern part of Kyushu, Japan in July 2017. For example, the highest daily rainfall was 803 mm on July 5, 2017 at Kurokawa, Asakura-City of Fukuoka Prefecture. The heavy rainfall caused many slope failures, debris-flows, sediment-flows and floods, which killed 37 people at the current stage. Phenomena such as surface slope failures and sediment-flows were concentrated around the eastern part of Asakura-City. They flowed down as floods and damaged many residential areas. The bedrock where the phenomena occurred was not only weathered granite but also weathered schist included in Sangun metamorphic rocks. It is a very important feature that enormous driftwood has discharged by sediment-flows, floods and so on. Some large failures also occurred out of Asakura-City. In Hita-City of Oita Prefecture, a large failure with a width of ca.200 m, a length of ca.350 m and a depth of ca.15 m occurred and blockaded Ono-river. Because this disaster caused serious damage to surrounding areas, the comprehensive countermeasures such as construction of sabo-facilities and setting warning-evacuation system must be needed.
M3 - 学術誌
VL - 70
SP - 31
EP - 42
JO - 新砂防 = Journal of the Japan Society of Erosion Control Engineering : 砂防学会誌
JF - 新砂防 = Journal of the Japan Society of Erosion Control Engineering : 砂防学会誌
SN - 0286-8385
IS - 4
ER -