@article{oai:niigata-u.repo.nii.ac.jp:00028134, author = {松尾, 行洋}, journal = {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}, month = {Dec}, note = {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.}, pages = {91--98}, title = {地すべり地における凹地の意義}, volume = {9}, year = {1987} }