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ID 35654
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別タイトル
An experimental study on the swelling properties of soils gathered in the fi eld of the Shobara disaster, Hiroshima Prefecture <Articles>
著者
上森 弘樹
NDC
地球科学・地学・地質学
抄録(英)
A lot of slope failures and debris flows occurred at Shobara on July 16, 2010. Some characteristic phenomena were seen by the course that the failure materials flowed down. In many places, surface soils were left without being eroded deeply, though debris materials passed on them. To clarify the cause, we have made some experiments with the soils of Shobara. From the analysis using the X-ray diffraction device, we found out that vermiculite with the swelling characteristic was mainly included. From the swelling check examination between 1000 hours, water more than the volume of initial void before the test was absorbed. Also, from the measuring of the swelling pressure, the maximum value of 9.68 kPa was recorded between 500 hours. These results suggest that the soils of Shobara remained in a kind of unsaturated condition in spite of heavy rainfall during 3 hours, therefore, they were not eroded deeply.
掲載誌名
広島大学大学院総合科学研究科紀要. II, 環境科学研究
8巻
開始ページ
69
終了ページ
75
出版年月日
2013-12-31
出版者
広島大学大学院総合科学研究科
ISSN
1881-7696
NCID
SelfDOI
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2013 Graduate School of Integrated Arts and Sciences, Hiroshima University. All rights reserved.
部局名
総合科学研究科
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