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Residual strength parameters were c_r=0kPa, \u03c6_r=26.0\u0026acd;33.3\u00b0for Makiya, and c_r=0kPa, \u03c6_r=27.0\u00b0for Ue-arakawa, both higher than those for landslide soils.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3689"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. 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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 45号
  1. 部局別インデックス
  2. 農学部

沖縄北部国頭マージ地帯における崩壊

http://hdl.handle.net/20.500.12000/3689
http://hdl.handle.net/20.500.12000/3689
ac5ea76a-240e-47da-b33e-e3c6b2c273dd
名前 / ファイル ライセンス アクション
KJ00000161859.pdf KJ00000161859.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 沖縄北部国頭マージ地帯における崩壊
言語 ja
作成者 宜保, 清一

× 宜保, 清一

ja 宜保, 清一

趙, 廷寧

× 趙, 廷寧

ja 趙, 廷寧

辛島, 光彦

× 辛島, 光彦

ja 辛島, 光彦

佐々木, 慶三

× 佐々木, 慶三

ja 佐々木, 慶三

吉沢, 光三

× 吉沢, 光三

ja 吉沢, 光三

Gibo, Seiichi

× Gibo, Seiichi

en Gibo, Seiichi

Zhao, Tingning

× Zhao, Tingning

en Zhao, Tingning

Karashima, Mitsuhiko

× Karashima, Mitsuhiko

en Karashima, Mitsuhiko

Sasaki, Keizo

× Sasaki, Keizo

en Sasaki, Keizo

Yoshizawa, Mitsuzo

× Yoshizawa, Mitsuzo

en Yoshizawa, Mitsuzo

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
主題
言語 ja
主題Scheme Other
主題 国頭マージ
言語 ja
主題Scheme Other
主題 崩壊
言語 ja
主題Scheme Other
主題 地質弱面
言語 ja
主題Scheme Other
主題 ピーク強度
言語 ja
主題Scheme Other
主題 残留強度
内容記述
内容記述タイプ Other
内容記述 国頭マージ地帯の崩壊は流出土砂の生産源となっている。崩壊土砂の流出には, 谷地形における法面工事中に崩壊が発生し直接的に渓流に流出するもの, 整備後に側溝を介し流出するもの, 側溝閉塞が原因で起こる畑面ガリ侵食がもたらす二次的な土砂流出がある。崩壊には, 流れ盤性のすべり, 開口亀裂からなる弱化したレキ層のすべり, 細粒シルト層のすべりがある。崩壊の多くは層理や節理のような弱面とその走向に規制されている。弱面の強度は残留強度近くにまで低下し, 非弱面部ではピーク強度が発揮される。真喜屋の強風化岩および上新川の細粒シルトで示されたピーク強度定数はそれぞれc_f=16.1kPa・c_f=43.5°, c_f=12.0kPa・c_f=28.5°であり, 残留強度定数はそれぞれc_r=0kPa・φ_r=26.0∿33.3°, c_r=0kPa・φ_r=27.0°で, 地すべり土に比べて高値である。
内容記述タイプ Other
内容記述 In the Kunigami-Maaji (red) soil area in Okinawa, slope failures are one of the rise of soil loss which pollutes rivers. Most of slope failures occur controlled by the strike of geological weak planes. The shear strength along weak planes is lowered to the value close to residual strength. The peak strength is mobilized in shear zones where weak plane does not exist. Peak strength parameters for strongly weathered rock from Makiya and for weathered soil from Ue-arakawa were c_f=16.1kPa, φ_f=43.5°, and c_f=12.0kPa, φ_f=28.5°, respectively. Residual strength parameters were c_r=0kPa, φ_r=26.0∿33.3°for Makiya, and c_r=0kPa, φ_r=27.0°for Ue-arakawa, both higher than those for landslide soils.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/3689
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 45, p. 157-166
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