{"created":"2024-02-28T05:54:32.235673+00:00","id":2000050,"links":{},"metadata":{"_buckets":{"deposit":"83274541-766a-42f2-bc74-f8f521755712"},"_deposit":{"created_by":12,"id":"2000050","owner":"12","owners":[12],"pid":{"revision_id":0,"type":"depid","value":"2000050"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:02000050","sets":["1706970004180:1","87:661:1727312983899:663:697"]},"author_link":[],"item_12_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-03-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"194","bibliographicPageStart":"183","bibliographicVolumeNumber":"201","bibliographic_titles":[{"bibliographic_title":"農業工学研究所技報","bibliographic_titleLang":"ja"},{"bibliographic_title":"Technical report of the National Research Institute of Agricultural Engineering","bibliographic_titleLang":"en"}]}]},"item_12_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A new embanking FEM-analysis method of filldams on soil or soft rock foundation is presented. Itregards the foundation as a non-linear elasic body while th e conventional method regards it as a linear one.This method can provid e accurate est1mat10ns comparative conveniently with only PS-logging and bore holetest (or plate loading test) data, taking the stiffness dependencies on both depth and strain level intoconsideration. It includes evaluating equations of the foundation stiffness which are derived from the results ofmany exploratory tests, i.e. PS-logging, bore hole lateral loading test, plate loading test, and triaxialcompression test with LDT, which were carried out in an artificial soil foundation composed of high-densityhomogeneous sand. The artificial foundation was created in a 5m x 5m x 3m concrete soil tank. Theestimated elastic modulus corresponded well with obtained one from the exploratory tests carried out in anatural mudstone foundation. The comparison between the analytical results by the conventional \"linearmethod\" and this \"non-linear one\" suggested that this new method could solve the problem of overestimatingsettlement in the soil or soft rock foundation.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"ダム等の大規模構造物では、設計およぴ安全性評価のために築造に伴う地盤の変形程度を予測することが不可欠である。その際に実施される応力変形解析では、基礎地盤を線形弾性体として扱うことが一般的である。しかし、軟岩や断層破砕帯などの比較的軟質な地盤（一軸圧縮強度q,<5Mpa程度）では、弾性特性の非線形性が非常に大きいために、それに伴う変形量が無視できなくなる場合が多い。\n地盤の弾性特性は、その様々な物理的要因によって変化する。本研究では、その中でも特に影響力が大きい二つの項目、拘束圧とひずみについて検討する。ただし、実際の地盤内の拘束圧は、地形や応力履歴その他の条件を複雑に反映するため、正確に評価することは非常に難しい。そのため、実用上は土被り厚に側圧係数を乗じて拘束圧を表現することが多い。本報では、拘束圧の替わりに深度を用いる。\n一般に、地盤の弾性係数と深度との関係についてはFig.I、ひずみとの関係についてはFig.2のように表すことができる。しかしながら、このような曲線を確定するためには多数の係数が必要となる。\n基礎地盤の弾性特性把握のために現場で通常広範に実施される試験は、孔内水平載荷試験、平板載荷試験、さらにPS検層である。本研究は、このような状況を踏まえ、現場で容易に得られる上述した試験データによって、材料弾性特性の評価に関して、孔内水平載荷試験あるいは平板載荷試験のどちらか一方と、PS検層の合計2種の試験結果のみを用いて、実用に耐えうる精度を備えた基礎地盤の弾性特性評価法を得ることを目的とした。\nまず、地盤の弾性特性と深度・ひずみとの関係を出来るだけ正確に把握することが必要となる。そのために、自然地盤が持つ局所性を避けるために人工地盤を作成し、各種の弾性特性調査試験を実施した。次に、その結果に基づき、基礎地盤の弾性特性推定式を所望の簡便性を満たすように導出した。さらに、その妥当性を検証するために、実ダムの築堤解析に適用し、実測値との比較を行った。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_12_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/0002000050","subitem_identifier_reg_type":"JaLC"}]},"item_12_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"独立行政法人農業工学研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"NATIONAL INSTITUTE FOR RURAL ENGINEERING INDEPENDENT ADMINISTRATIVE INSTITUTION","subitem_publisher_language":"en"}]},"item_12_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-3314","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TAGASHIRA, Hidekazu","creatorNameLang":"en"},{"creatorName":"田頭, 秀和","creatorNameLang":"ja"},{"creatorName":"タガシラ, ヒデカズ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"TAGASHIRA","familyNameLang":"en"},{"familyName":"田頭","familyNameLang":"ja"},{"familyName":"タガシラ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Hidekazu","givenNameLang":"en"},{"givenName":"秀和","givenNameLang":"ja"},{"givenName":"ヒデカズ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"40414221","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=40414221"},{"nameIdentifier":"taga2","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/taga2"}]},{"creatorNames":[{"creatorName":"KOHGO, Yuji","creatorNameLang":"en"},{"creatorName":"向後, 雄二","creatorNameLang":"ja"},{"creatorName":"コウゴ, ユウジ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"KOHGO","familyNameLang":"en"},{"familyName":"向後","familyNameLang":"ja"},{"familyName":"コウゴ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Yuji","givenNameLang":"en"},{"givenName":"雄二","givenNameLang":"ja"},{"givenName":"ユウジ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"read0133836","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/read0133836"}]},{"creatorNames":[{"creatorName":"MASUKAWA, Susumu","creatorNameLang":"en"},{"creatorName":"増川, 晋","creatorNameLang":"ja"},{"creatorName":"マスカワ, ススム","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"MASUKAWA","familyNameLang":"en"},{"familyName":"増川","familyNameLang":"ja"},{"familyName":"マスカワ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Susumu","givenNameLang":"en"},{"givenName":"晋","givenNameLang":"ja"},{"givenName":"ススム","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"00414459","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00414459"},{"nameIdentifier":"Filldam","nameIdentifierScheme":"researchmap","nameIdentifierURI":"http://researchmap.jp/Filldam"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2024-02-28"}],"displaytype":"detail","filename":"TRNIREJ201_183-194.pdf","filesize":[{"value":"553 KB"}],"format":"application/pdf","license_note":"©　 国立研究開発法人 農業・食品産業技術総合研究機構\nNational Agriculture and Food Research Organization, Japan","licensetype":"license_note","url":{"url":"https://repository.naro.go.jp/record/2000050/files/TRNIREJ201_183-194.pdf"},"version_id":"b7dfefa8-da3e-42eb-8fe9-1f1cb4ba8d42"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"簡便な軟質基礎地盤の非線形弾性特性評価法","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"簡便な軟質基礎地盤の非線形弾性特性評価法","subitem_title_language":"ja"},{"subitem_title":"An Simplified Estimating Method of Non-I inear Elastic Property of the Soft Foundation","subitem_title_language":"en"}]},"item_type_id":"12","owner":"12","path":["697","1"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-02-28"},"publish_date":"2024-02-28","publish_status":"0","recid":"2000050","relation_version_is_last":true,"title":["簡便な軟質基礎地盤の非線形弾性特性評価法"],"weko_creator_id":"12","weko_shared_id":-1},"updated":"2024-02-28T06:01:45.127531+00:00"}