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ホローコアディスキングの破壊開始条件に関する解析的研究
http://hdl.handle.net/2298/16253
http://hdl.handle.net/2298/16253af5a84fe-ffc9-41ab-ad1c-5acc56744812
名前 / ファイル | ライセンス | アクション |
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mmij_114_12_875.pdf (588.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-10-04 | |||||
タイトル | ||||||
タイトル | ホローコアディスキングの破壊開始条件に関する解析的研究 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | ホローコアディスキング, 破壊開始条件, 地山応力, 引張応力, ディスク厚さ, 境界要素法, Hollow Core Disking, Criterion of Fracture Initiation, Initial Stress, Tensile Stress, Disk Thickness, Boundary Element Method | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
尾原, 祐三
× 尾原, 祐三× 姜, 聲承× 瀬口, 貴光× 佐藤, 晃 |
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別言語の著者 |
尾原, 祐三
× 尾原, 祐三× Seguchi, Takamitsu× Sato, Akira× Kang, Seong Seung |
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内容記述 | ||||||
内容記述 | Most of the overcoring method for rock stress measurements use a large diameter drilling, what is called the overcoring, to relieve the stress around a pilot hole in which a transducer is installed. When the overcoring is advanced into hard rock subjected to high rock stress, a phenomenon of a core disking is sometimes observed. As the recovered cores which have a constant thickness have a center hole like a doughnut, this core disking is called a hollow core disking. In this paper, simulating the overcoring under three dimensional initial stress state in which the axis of a principal stress coincides with that of a borehole, the hollow core disking initiated during the overcoring is discussed, based on the results calculated by a semi-analytical boundary element process for axisymmetric elasticity with arbitrary boundary conditions. Firstly, the surface stress intensity coefficients in the tangential and rotational directions of the borehole are analyzed under the conditions in which each principal stress of initial stress is subjected independently. It is clarified that the coefficients is not changed beyond the advance of the overcoring more than the radius of the borehole. Secondly, using the surface stress intensity coefficients, the surface stresses of the borehole are analyzed under three dimensional initial stress state, then the fracture criterion which represents the fracture initiation due to the tensile stress induced by the overcoring is formulated as a function of the advance of the overcoring. Finally, analyzing the surface stress of the borehole induced by the overcoring, it is made clear that the location of the fracture initiation, the type of the fracture and the thickness of disk are dependent upon initial stress state. | |||||
書誌情報 |
資源と素材 巻 114, p. 875-880, 発行年 1998-11 |
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書誌レコードID | ||||||
収録物識別子 | AN10062646 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
関連識別子 | 10.2473/shigentosozai.114.875 | |||||
権利 | ||||||
権利情報 | © 1998 The Mining and Materials Processing Institute of Japan | |||||
情報源(ISSN) | ||||||
関連名称 | 18806244 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
588906 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 560 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | A Criterion of Hollow Core Disking Initiation | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | ホローコアディスキング ノ ハカイ カイシ ジョウケン ニ カンスル カイセキテキ ケンキュウ | |||||
出版者 | ||||||
出版者 | 社団法人 資源・素材学会 | |||||
別言語の出版者 | ||||||
The Mining and Materials Processing Institute of Japan | ||||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | http://www.jstage.jst.go.jp/article/shigentosozai/114/12/114_875/_article/-char/ja/ |