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全層なだれの予知に関する一実験
http://hdl.handle.net/10191/38996
http://hdl.handle.net/10191/38996dc42cf9e-acc0-40b8-8cd7-cd5c24af065a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2_109-113.pdf (594.2 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-03-03 | |||||
| タイトル | ||||||
| タイトル | 全層なだれの予知に関する一実験 | |||||
| タイトル | ||||||
| タイトル | 全層なだれの予知に関する一実験 | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| その他のタイトル | ||||||
| その他のタイトル | An experiment concerned with the prediction of the ground avalanche | |||||
| 著者 |
和泉, 薫
× 和泉, 薫 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 162161 | |||||
| 姓名 | Izumi, Kaoru | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The snow pressure due to the gliding movement of a snow cover on a slope was observed at Avalanche Research Station, Toikanbetsu, northern Hokkaido, in the winter of 1975～1976. Observations were carried out on the south-faced slope inclined about 30° and covered with bamboo bushes of 80～100 cm in height (Fig.1). The snow pressure against a wooden board (60cm wide, 15cm high, 1.9cm thick) fixed rectangular to the slope was measured by use of a road-Cell (Fig.2). And, the gliding movement of the snow cover was measured by use of glide shoes A-1～A-5 (Fig.3). As shown in Fig.3, the snow pressure changed with time in response to the gliding movement of the snow cover. After it indicated the maximum value, the snow pressure changed like a saw-tooth wave. A crack was formed at the snow surface several meters below the road-cell and the glide shoeA-2, 10p.m., Jan.28 (Fig.4). After the crack formation, the snow pressure diminished exponentially to three quarters of the maximum value. Part of the snow cover from the crack downwards fell down in the from of a ground avalanche on Jan.29. Hidden cracks was found out on a pit wall of the snow block which remained not avalanching below the crack (Fig.5). It is considered from these observations that the saw-tooth wave type changing of the snow pressure was caused by the stress alternation within the snow cover due to the formation of hidden cracks. Therefore, it may be possible to predict a crack formation at the snow surface before ground avalanching by means of such a simple apparatus for measuring the snow pressure. | |||||
| 書誌情報 |
新潟大学積雪地域災害研究センター研究年報 en : 新潟大学積雪地域災害研究センター研究年報 巻 2, p. 109-113, 発行日 1980-03 |
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| 出版者 | ||||||
| 出版者 | 新潟大学積雪地域災害研究センター | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 03877892 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00183327 | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
