著者

池田 暁彦 松田 康弘

出版者

一般社団法人 日本物理学会

雑誌

日本物理学会誌 (ISSN:00290181)

巻号頁・発行日

vol.73, no.5, pp.318-320, 2018-05-05 (Released:2019-02-05)

参考文献数

10

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話題―身近な現象の物理―コインに磁場をかけると,どうなる?

著者

池田 暁彦 水山 高久 原口 勝則

出版者

公益社団法人 砂防学会

雑誌

砂防学会誌 (ISSN:02868385)

巻号頁・発行日

vol.60, no.3, pp.26-31, 2007-09-15 (Released:2010-04-30)

参考文献数

23

被引用文献数

1

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Debris flows occur when enough water supplied into materials on torrential streams. The occurrence criteria of debris flow has been evaluated with rainfall. However, the critical rainfalls triggering off debris flow may be differ by the supply process of water into materials. Material has been as riverbed deposit before the rainfall, or is supplied by slope failures and landslides during the rainfall. The authors selected Nishinogaito torrent for the test field, where debris flows has occurred frequently in these several years. The authors analyze the critical rainfalls based on the supply process of materials. In the Nishinogaito torrent, the material has been supplied before rainfall. Analyzing the accumulated rainfall within the time of concentration, it was estimated to be ten minutes and the critical rainfalls triggering debris flow in the Nishinogaito torrent was found to be 17 mm per ten minutes. From the result, we described a possibility to estimate the supply process of materials and or its occurrence process of debris flow from analyzing the critical rainfalls.

著者

池田 暁彦

出版者

公益社団法人 砂防学会

雑誌

砂防学会誌 (ISSN:02868385)

巻号頁・発行日

vol.64, no.3, pp.57-63, 2011-09-15 (Released:2015-02-02)

参考文献数

20