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  1. 紀要論文
  2. 琉球大学理学部紀要
  3. 75号
  1. 部局別インデックス
  2. 理学部

Fault analysis around Himalaya by means of 2 dimensional finite element method.

http://hdl.handle.net/20.500.12000/2619
http://hdl.handle.net/20.500.12000/2619
c20dc11e-0d34-4191-84c8-aed4d367c414
名前 / ファイル ライセンス アクション
No75p19.pdf No75p19.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2007-12-10
タイトル
タイトル Fault analysis around Himalaya by means of 2 dimensional finite element method.
言語 en
作成者 Howladar, M. Farhad

× Howladar, M. Farhad

en Howladar, M. Farhad

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Hayashi, Daigoro

× Hayashi, Daigoro

en Hayashi, Daigoro

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林, 大五郎

× 林, 大五郎

ja 林, 大五郎

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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 en
主題Scheme Other
主題 Geological cross-section
主題
言語 en
主題Scheme Other
主題 finite element method
主題
言語 en
主題Scheme Other
主題 Mohr-Coulomb failure envelop
主題
言語 en
主題Scheme Other
主題 elastic rheology
主題
言語 en
主題Scheme Other
主題 convergence displacement
主題
言語 en
主題Scheme Other
主題 fault
内容記述
内容記述タイプ Other
内容記述 We examined the nature of stress around the Himalaya via numerical simulation using the 2 dimensional plane strain finite element models with elastic rheology. Mohr-Coulomb failure criterion also adopted to analyze the relationship between stress distribution and its influence on forming faults around the Himalaya. From this point of view, we presented three finite element elastic models and considered convergence displacement that is subjected along the SW-NE horizontal direction. Results point out that the convergence displacement boundary conditions and elastic properties of rock control the distribution, orientation, magnitudes and intensity of stress during the experiments.\nSome interesting features of our models are: (1) principle stresses are mainly compressive; (2)σ_1 directs vertically in deeper part and horizontally in the upper part of all layer; (3)σ_2 exhibits horizontal direction in the deeper part and vertical in the upper part; (4) magnitudes of both stresses are relatively high in the deeper part compared with the shallower part; (5)some tensional stresses are displayed in the upper part of Higher Himalayan region; (6)most of the elements are failed in layer 2 (Sub-Himalaya) and in the upper part of layers, 1 (Pre-Cambrian Basement), 4 (Higher Himalaya) and 5 (Tethys Himalaya).\nThese features allow us to infer that the nature and direction of compressive and tensional principle stresses are responsible for forming thrust and normal faults in these layers, respectively and they are intensely concentrated along Sub-Himalaya and upper part of other layers. The results from our numerical experiments are in agreement with the seismicity and focal mechanism solutions of earthquakes in the study area.
内容記述
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 琉球大学理学部
言語
言語 eng
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/20.500.12000/2619
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 0286-9640
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AN00250774
収録物名
言語 ja
収録物名 琉球大学理学部紀要
収録物名
言語 en
収録物名 Bulletin of the College of Science. University of the Ryukyus
書誌情報
号 75, p. 19-53
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