{"created":"2023-06-19T09:12:09.089752+00:00","id":23973,"links":{},"metadata":{"_buckets":{"deposit":"1a2f9586-e20c-40c5-b5e0-851aae2fb9e2"},"_deposit":{"created_by":1,"id":"23973","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"23973"},"status":"published"},"_oai":{"id":"oai:kumadai.repo.nii.ac.jp:00023973","sets":["426:428"]},"author_link":["147483","147180","147484","147110"],"item_16_alternative_title_22":{"attribute_name":"その他の言語のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Core Disking Phenomenon on the Compact Conical-ended Borehole Overcoring(CCBO) Technique"}]},"item_16_alternative_title_23":{"attribute_name":"タイトル（ヨミ）","attribute_value_mlt":[{"subitem_alternative_title":"エンスイ コウテイ ヒズミホウ ニ オケル コアディスキング ゲンショウ ニ カンスル キソテキ ケンキュウ"}]},"item_16_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-04-25","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"270","bibliographicPageStart":"265","bibliographicVolumeNumber":"117","bibliographic_titles":[{"bibliographic_title":"資源と素材"}]}]},"item_16_creator_3":{"attribute_name":"別言語の著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Obara, Yuzo","creatorNameLang":"en"},{"creatorName":"尾原, 祐三","creatorNameLang":"ja"},{"creatorName":"オバラ, ユウゾウ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Obara","familyNameLang":"en"},{"familyName":"尾原","familyNameLang":"ja"},{"familyName":"オバラ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Yuzo","givenNameLang":"en"},{"givenName":"祐三","givenNameLang":"ja"},{"givenName":"ユウゾウ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"147110","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kang, Seong Seung"}],"nameIdentifiers":[{"nameIdentifier":"147180","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishiguro, Yukifumi"}],"nameIdentifiers":[{"nameIdentifier":"147483","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"菅原, 勝彦","creatorNameLang":"ja"},{"creatorName":"スガワラ, カツヒコ","creatorNameLang":"ja-Kana"},{"creatorName":"Sugawara, Katsuhiko","creatorNameLang":"en"}],"familyNames":[{"familyName":"菅原","familyNameLang":"ja"},{"familyName":"スガワラ","familyNameLang":"ja-Kana"},{"familyName":"Sugawara","familyNameLang":"en"}],"givenNames":[{"givenName":"勝彦","givenNameLang":"ja"},{"givenName":"カツヒコ","givenNameLang":"ja-Kana"},{"givenName":"Katsuhiko","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"147484","nameIdentifierScheme":"WEKO"}]}]},"item_16_description_17":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_16_description_46":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"subitem_description":"論文(Article)","subitem_description_type":"Other"}]},"item_16_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Core disking is sometimes observed in high stress region where rock stress measurements are performed by the Compact Conical-ended Borehole Overcoring (CCBO) Technique, which is one of the stress relief methods. When the tensile stress induced on the borehole bottom surface becomes larger than the tensile strength of the rock, a failure from the borehole bottom surface will be imitated. Therefore, if the stress changes on the borehole bottom surface can be analyzed during overcoring, the rock stress prior to boring may be estimated.\nIn this paper, assuming that the tensile stress on a borehole bottom surface induced due to overcoring is one of factors of generating core disking, the mechanism of the core disking in the CCBO is discussed as well as the location of failure initiation and the type of failure. Firstly, the characteristics of core disking in the CCBO is shown. Secondly, simulating the overcoring of the CCBO under three dimensional initial stress state in which the axis of a principal stress coincides with that of a borehole, the failure initiated on the borehole bottom surface during the overcoring is discussed, based on the results calculated by a semi-analytical boundary element process for axisymmetric elasticity with arbitrary boundary element conditions. From the results, the criterion of core disking is suggested and the applicable limitation of the CCBO is made clear. Furthermore, the X-ray CT method is applied to the recovered core with core disking, and then the state of failure within the core is visualized. Finally, it is discussed that the rock stress prior to boring is estimated by the suggested criterion of the core disking, comparing the neighboring rock stress measurement and tensile strength obtained from cores.","subitem_description_type":"Other"}]},"item_16_description_77":{"attribute_name":"URL","attribute_value_mlt":[{"subitem_description":"http://www.jstage.jst.go.jp/article/shigentosozai/117/4/117_265/_article/-char/ja/","subitem_description_type":"Other"}]},"item_16_publisher_36":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"社団法人 資源・素材学会"}]},"item_16_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.2473/shigentosozai.117.265","subitem_relation_type_select":"DOI"}}]},"item_16_relation_16":{"attribute_name":"情報源(ISSN)","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"18806244"}]}]},"item_16_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10062646","subitem_source_identifier_type":"NCID"}]},"item_16_subject_20":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"560","subitem_subject_scheme":"NDC"}]},"item_16_text_18":{"attribute_name":"形態","attribute_value_mlt":[{"subitem_text_value":"858594 bytes"}]},"item_16_text_38":{"attribute_name":"別言語の出版者","attribute_value_mlt":[{"subitem_text_value":"The Mining and Materials Processing Institute of Japan"}]},"item_16_text_47":{"attribute_name":"資源タイプ・ローカル","attribute_value_mlt":[{"subitem_text_value":"雑誌掲載論文"}]},"item_16_text_48":{"attribute_name":"資源タイプ・NII","attribute_value_mlt":[{"subitem_text_value":"Journal Article"}]},"item_16_text_49":{"attribute_name":"資源タイプ・DCMI","attribute_value_mlt":[{"subitem_text_value":"text"}]},"item_16_text_50":{"attribute_name":"資源タイプ・ローカル表示コード","attribute_value_mlt":[{"subitem_text_value":"01"}]},"item_16_version_type_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Obara, Yuzo","creatorNameLang":"en"},{"creatorName":"尾原, 祐三","creatorNameLang":"ja"},{"creatorName":"オバラ, ユウゾウ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Obara","familyNameLang":"en"},{"familyName":"尾原","familyNameLang":"ja"},{"familyName":"オバラ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Yuzo","givenNameLang":"en"},{"givenName":"祐三","givenNameLang":"ja"},{"givenName":"ユウゾウ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"147110","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"姜, 聲承"}],"nameIdentifiers":[{"nameIdentifier":"147180","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"石黒, 幸文"}],"nameIdentifiers":[{"nameIdentifier":"147483","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"菅原, 勝彦","creatorNameLang":"ja"},{"creatorName":"スガワラ, カツヒコ","creatorNameLang":"ja-Kana"},{"creatorName":"Sugawara, Katsuhiko","creatorNameLang":"en"}],"familyNames":[{"familyName":"菅原","familyNameLang":"ja"},{"familyName":"スガワラ","familyNameLang":"ja-Kana"},{"familyName":"Sugawara","familyNameLang":"en"}],"givenNames":[{"givenName":"勝彦","givenNameLang":"ja"},{"givenName":"カツヒコ","givenNameLang":"ja-Kana"},{"givenName":"Katsuhiko","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"147484","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-03-02"}],"displaytype":"detail","filename":"mmij_117_4.pdf","filesize":[{"value":"858.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"mmij_117_4.pdf","url":"https://kumadai.repo.nii.ac.jp/record/23973/files/mmij_117_4.pdf"},"version_id":"979afb6f-abba-4098-a69d-eea67276c4e5"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"円錐孔底ひずみ法","subitem_subject_scheme":"Other"},{"subitem_subject":"コアディスキング","subitem_subject_scheme":"Other"},{"subitem_subject":"岩盤応力","subitem_subject_scheme":"Other"},{"subitem_subject":"破壊開始条件","subitem_subject_scheme":"Other"},{"subitem_subject":"境界要素法","subitem_subject_scheme":"Other"},{"subitem_subject":"X線CT","subitem_subject_scheme":"Other"},{"subitem_subject":"CCBO Technique","subitem_subject_scheme":"Other"},{"subitem_subject":"Core Disking","subitem_subject_scheme":"Other"},{"subitem_subject":"Rock Stress","subitem_subject_scheme":"Other"},{"subitem_subject":"Criterion of Fracture Initiation","subitem_subject_scheme":"Other"},{"subitem_subject":"Boundary Element Method","subitem_subject_scheme":"Other"},{"subitem_subject":"X-ray CT","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"円錐孔底ひずみ法におけるコアディスキング現象に関する基礎的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"円錐孔底ひずみ法におけるコアディスキング現象に関する基礎的研究"}]},"item_type_id":"16","owner":"1","path":["428"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-09-30"},"publish_date":"2010-09-30","publish_status":"0","recid":"23973","relation_version_is_last":true,"title":["円錐孔底ひずみ法におけるコアディスキング現象に関する基礎的研究"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-09-26T04:15:10.893505+00:00"}