Zobrazeno 1 - 10 of 110 pro vyhledávání: '"Nobutaka Ishikawa"'
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Safety assessment method of steel protective structure against large-scale debris flow
Autor: Hiroshi Kokuryo, Toshiyuki Horiguchi, Nobutaka Ishikawa
Publikováno v: International Journal of Protective Structures. 13:509-538
Recently, steel pipe open type protective structures (steel open dams) have been damaged because of large-scale debris flow resulting from torrential rainfall based on abnormal climate. This article proposes a safety assessment method for the load-ca
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5eeecf0dc17b109915dca8ce072244a9
https://doi.org/10.1177/20414196211059552
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4
Failure analysis of steel open dam against an extreme boulder debris flow
Autor: Hiroshi Kokuryo, Nobutaka Ishikawa, Toshiyuki Horiguchi
Publikováno v: International Journal of Protective Structures. 12:263-283
This paper presents a failure analysis for a steel open-type Sabo dam (hereafter, steel open dam) against an extreme boulder debris flow load (hereafter, level II load) by a two-step analysis. The first step analysis is to estimate the level II load
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f17ef764641d530d8fd87542f720b19
https://doi.org/10.1177/2041419620970566
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5
Experimental study of the woody debris trapping efficiency of a steel pipe, open sabo dam
Autor: Toshiyuki Horiguchi, Nobutaka Ishikawa, Ryuhei Tateishi, Yoshimi Sonoda
Publikováno v: International Journal of Sediment Research. 35:431-443
In recent years, the damage caused to human settlements in Japan by large woody debris (LWD) has been increasing. For example, the 2013 Izu Oshima typhoon resulted in a large number of fatalities and missing persons, and the Kagoshima Typhoon Disaste
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaa36cf1fd456d66e3a9b14c958d7e3f
https://doi.org/10.1016/j.ijsrc.2020.03.011
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7
Prevention of Debris Flow from Inactive, Usually Dry Catchment in zero-order basin
Autor: Hiroshi Kokuryo, Nobutaka Ishikawa, Toshiyuki Horiguchi
The human settlement tend to be close to a mountainous area all over the world. The prevention concept is necessary to mitigate or prevent the origin occurrence of debris flow in zero-order basin. The zero-order basin is a mountain stream that is unc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70fbf9e3464027be7506c8090318efbe
https://doi.org/10.5194/egusphere-egu21-14988
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8
Internal explosion tests for scaled subsurface magazines
Autor: Nobutaka Ishikawa, Tomonori Ohno, Hiroyoshi Ichino
Publikováno v: International Journal of Protective Structures. 7:100-122
A subsurface magazine is proposed to reduce the debris and the air-blast pressure caused by an accidental explosion. First, 1/20-scale indoor explosion model tests for subsurface magazines were conducted to examine the characteristics of an air-burst
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d4528bb0d84e2b261ee0bdb3428629f
https://doi.org/10.1177/2041419615625686
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