@article{oai:ir.kagoshima-u.ac.jp:00002001,
 author = {TERAMOTO, Yukiyoshi and 寺本, 行芳 and SHIMOKAWA, Etsuro and 下川, 悦郎 and JITOUSONO, Takashi and 地頭薗, 隆},
 journal = {鹿児島大学農学部演習林研究報告, Research bulletin of the Kagoshima University forests},
 month = {Dec},
 note = {To clarify the distributions and features of slope failures in Tarumizu City， Kagoshima Prefecture，caused by typhoon Nabi in September 2005，field surveys and interpretations of aerial photographs were carried out. The results were characterized as follows: (1) Many slope failures were distributed on steep slopes，and within ranges investigated they were seen to have debris flows among them. Several types of erosion and slope failures were observed within the ranges investigated; shallciw landslides resulting from the infiltration of rain water into Ito pyroclastic flow deposit slopes，sedimentary rock and granite; failures occurring on the shoulder reaches of cutting slopes and the upper reaches of slope failure scars that resulted from the infiltration of rain water into Ito pyroclastic flow deposit and granite slopes; and deep-seated landslides resulting from groundwater between sedimentary rock，and the volcanic ash and volcanic pumice layer，combined with an influx of rain water，in sedimentary rock slopes. (2) The areas of slope failures generated on Ito pyroclastic flow deposit slopes varied between 27㎡ and 1,487㎡ (average 390㎡)，the areas of slope failures generated on sedimentary rock slopes varied between 21㎡ and 2,572㎡ (average 437㎡)，and the areas of slope failures generated on granite slopes varied between 101㎡ and 670㎡ (average 357㎡). About 80 percent of the slope failure areas were less than 600㎡. Deep-seated landslides resulting from groundwater between sedimentary rock，and the volcanic ash and volcanic pumice layer，combined with an influx of rain water on sedimentary rock slopes showed a large value compared with other types of erosion and slope failures within the ranges investigated., 鹿児島県垂水市において， 2005年9月の台風14号に伴い発生した斜面崩壊の分布と特徴を明らかにするため，現地調査および、空中写真判読を行った。得られた結果は以下の通りである。 (1)調査対象区域においては，多数の斜面崩壊が急斜面で発生していた。さらに，斜面崩壊が土石流化したものも確認された。調査対象区域内でみられた侵食・斜面崩壊のタイプとして，シラス，堆積岩および花崗岩の斜面における雨水の浸透による表層崩壊，シラスおよび花崗岩の切り取り法面，斜面肩部および、崩壊跡地上部の斜面における雨水の浸透による崩壊，さらに堆積岩の斜面とその上部を覆う火山灰および軽石層において，浸透した雨水と地下水の集中，地下水圧の上昇に起因した深層崩壊が挙げられる。 (2)調査対象区域においては，シラスの斜面で発生した斜面崩壊の面積は27～1,487㎡の範囲（平均390㎡），堆積岩の斜面で発生した斜面崩壊の面積は21～2,572㎡の範囲（平均437㎡），花崗岩の斜面で発生した斜面崩壊の面積は101～670㎡の範囲（平均357㎡）であった。調査対象区域において発生した斜面崩壊の面積の約80%が600㎡未満であった。堆積岩の斜面とその上部を覆う火山灰および軽石層において，浸透した雨水と地下水の集中，地下水圧の上昇に起因して発生した深層崩壊は，調査対象区域においてみられた他の侵食・斜面崩壊のタイプに比べ大きな規模を示した。},
 pages = {1--9},
 title = {Distribution and features of slope failures in Tarumizu City，Kagoshima Prefecture caused by typhoon Nabi in September 2005},
 volume = {34},
 year = {2006}
}