{"_buckets": {"deposit": "d36f200e-760c-45a1-a017-f5e50636e678"}, "_deposit": {"id": "2002697", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002697"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002697", "sets": ["1642837921027", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "一面せん断箱内面の周面摩擦力を考慮した砂のせん断試験", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "The shearing test of the sand considering surface friction in the single shear box", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "瀬戸内, 秀規", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "新城, 俊也", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Setouchi, Hideki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shinjo, Toshiya", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "一面せん断試験"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "周面摩擦"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "内部摩擦角"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Split box shear test"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Skin friction"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Internal friction angle"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "本研究では, 豊浦砂について三笠式一面せん断試験装置にせん断面上の垂直応力が測定できるよう改良を加え圧密圧力一定の一面せん断試験を行なった。圧密圧力σ_Lとせん断面上の垂直応力σ_Uを同時に測定することで, せん断箱内面に働く周面摩擦力の方向および大きさを定量的に把握することができた。得られた結果は次のようである。(1) 反力ローラーと反力板の間に荷重計を挿入することにより, せん断箱内の周面摩擦を評価できる。(2) 体積が収縮から膨張に転じると, せん断箱内面の周面摩擦力は下向きから上向きに転じ, せん断面上の垂直応力σ_Uは圧密圧力σ_Lより大きくなる。(3) せん断面上の垂直応力σ_Uの変化割合は, Dr=25%の場合より体積増加の割合の大きいDr=75%の場合の方が大きく, Dr=25%の場合σ_U/σ_L=0.8\u0026acd;1.2,Dr=75%の場合σ_U/σ_L=0.8\u0026acd;1.4となった。(4) 応力比τ/σ_Uとせん断変位Dの関係は, 圧密圧力の大小に関わらずほぼ一致した。(5) Dr=75%の場合, 上下せん断箱間隔dは, せん断初期からせん断変位D=4mm程度までは一定値を示したが, D=4mm以上となると減少傾向を示すようになった。(6) せん断箱内の周面摩擦力を考慮しない通常の定圧試験ではDr=25%および75%の場合, それぞれ内部摩擦角を2.5°, 6.1°程度過大評価することとなった。", "subitem_description_type": "Other"}, {"subitem_description": "In single shear testing apparatus of the usual type in which the loading plate moves in the shear box, the change of the normal stress on shesr plane is generated with the volume increase of the sample which originates from the dilatancy for skin friction between sample and shear box. The normal stress respectively increases by positive and negativity of the dilatancy, and it decreases, and large effect is given in the test result. The improvement of Mikasa\u0027s Direct Shear Apparatus was carried out that a load cell is put between the guide roller and the reaction plate in order to measure the normal stress on shear plane. The single shear tests under the constant pressure were carried out on Toyoura sands. For the loose and dense samples, the values of friction angle on the calculating method considering the friction force between sample and shear box had a lower value than those of on the usual calculating method not considering the friction force.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "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/20.500.12000/3668"}]}, "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": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "46", "bibliographicPageEnd": "99", "bibliographicPageStart": "93"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161878.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002697/files/KJ00000161878.pdf"}, "version_id": "af93cde0-a2fa-44ed-9405-92de023a9a55"}]}, "item_title": "一面せん断箱内面の周面摩擦力を考慮した砂のせん断試験", "item_type_id": "15", "owner": "1", "path": ["1642837921027", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3668", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002697", "relation": {}, "relation_version_is_last": true, "title": ["一面せん断箱内面の周面摩擦力を考慮した砂のせん断試験"], "weko_shared_id": -1}