2024-03-29T08:04:03Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00028134
2022-12-15T03:58:06Z
453:456
503:836:1555:1574
地すべり地における凹地の意義
地すべり地における凹地の意義
A significance of depressions in landslide areas
松尾, 行洋
landslide
depression
landslide prediction
older landslide
new landslide
地すべり
凹地
地すべりの予測
旧期の地すべり
新しい地すべり
This paper presents a consideration on the relationship between the three occurrences of landslides, which have lately occurred in the Hokuriku district, and the depressions found at the sliding areas. The three landslide areas are as follows: Torigoe-mura, southwest of Tsurugi City, Ishikawa Prefecture; the boundary between Tsubata City of Ishikawa Prefecture and Oyabe City of Toyama Prefecture; and Oshimizu-cho in Hakui-gun of Ishikawa Prefecture. The depressions were judged to be traces caused by changes of preexisted older landslides in the above-mentioned three sliding areas. The author has investigated the role played by the depressions in the recent landslides, and has reached the following conclusion: In these landslide areas, the depressions changed to a slip cliff, so that a great quantity of water concentrated and infiltrated into an old slip plane which had existed in the downstream from the depression, and raised the pore water pressure, subsequently causing the new landslide. Such a depression found in an old landslide area can possibly serve as a hot lead to landslide prediction.
新潟大学積雪地域災害研究センター
1987-12
jpn
departmental bulletin paper
http://hdl.handle.net/10191/39080
https://niigata-u.repo.nii.ac.jp/records/28134
AN00183327
03877892
新潟大学積雪地域災害研究センター研究年報
新潟大学積雪地域災害研究センター研究年報
9
91
98
https://niigata-u.repo.nii.ac.jp/record/28134/files/9_91-98.pdf
application/pdf
571.1 kB
2019-08-20