{"created":"2021-03-01T06:34:17.549064+00:00","id":28476,"links":{},"metadata":{"_buckets":{"deposit":"9532095a-8387-4278-9221-bbf9e31a605b"},"_deposit":{"id":"28476","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28476"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028476","sets":["453:456","485:872:1583:1607"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Accurate and Practical Field Permeability Tests for Quality Inspection of Soil Embankment"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"137","bibliographicPageStart":"129","bibliographicVolumeNumber":"57","bibliographic_titles":[{"bibliographic_title":"新潟大学農学部研究報告"},{"bibliographic_title":"新潟大学農学部研究報告","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ため池堤防や河川堤防などの盛土構造物には,その重要な機能の一つとして,水位変動と降雨時の浸透に対する安全性が要求される。この水理学的な安全性を支配するのは土の透水性であり,これを適切に管理し検査するためには,土の透水性を簡便に精度よく測定できる現場透水試験法の導入が必要となる。ソイルサイエンス分野で開発されたゲルフ式プレッシャーインフィルトロメータ(GPI)法およびゲルフ式ウェルパーミアメータ(GWP)法を取り上げ,現場透水試験法としての適用性と実務性をまとめた。いずれの試験法も,定水位条件で生じる地盤への定常浸潤量を測定して現場飽和透水係数を推定するもので,測定は簡単で装置構造もシンプルである。GPI法は地盤の平面的な広がりの中での透水係数を,またGWP法は深さ方向の透水係数を効率的に測定することができる。限られた時間内で比較的多くの測定値が得られるため,地盤のもつ透水性を統計的な観点から評価できる。試験中に付加的な測定を行うことにより,土の不飽和水分特性を推定することも可能である。土の透水性を確実に評価できるような単一の標準的なアプローチを開発することはむずかしい。そのかわりに,互いに補足しあう組み合わせた方法が必要になる。ここで論議したGPI法とGWP法は,盛土地盤での利用に向けた組み合わせ方法の基本的な核になる可能性をもつと考える。Soil embankment constructed on reservoir, pond or river should be designed so that it is safe against a water fluctuation in reservoir or river as well as seepage flow due to rainfall which may cause deterioration of soil structures. Because the hydraulic safety of soil embankment is mainly governed by the permeability of embankment soil, it is practically important to measure it and qualify a state of safety of the soil embankment based on the measurements. An in-situ or field permeability test of soil is most promising to measure simply and accurately the soil permeability. In this report the applicability of the Guelph pressure infiltrometer (GPI) and Guelph well permeameter (GWP) are introduced effectively into the field permeability test of the soil embankment. Both the GPI and the GWP which have been developed in the soil science provide a field-saturated hydraulic conductivity of soil based on the measurement of a constant-head infiltration of water into soil. Their special features are characterized by their simplicity of the test equipment and the easiness of the measurement to obtain data. It is well understood that the GPI is suited for measuring the soil permeability along the ground surface, and the GWP for measuring the soil permeability along the soil depth of the ground. Statistical properties of the soil hydraulics are easily determined by the GPI or the GWP because it provides relatively large number of measurements during the limited period of the field test. It is also possible to extend the procedure of the GPI or the GWP test method so that it provides an estimation of unsaturated moisture properties of soil based on an additional measurement of soil moisture during the field permeability test. The complexities of the filed soil as well as the various theoretical and practical constraints of each method seem to show that no single standard approach will ever be developed. It appears instead that field investigations will require a suite of complementary methods. The GPI and the GWP have the potential for forming an essential core to such a suite of methods for use in measuring the soil permeability and qualifying the state of the hydraulic safety of the soil embankment.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"163806","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Morii, Toshihiro"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟大学農学部"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00183393","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03858634","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森井, 俊広"}],"nameIdentifiers":[{"nameIdentifier":"163805","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":"2019-08-20"}],"displaytype":"detail","filename":"17_0019.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"17_0019.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28476/files/17_0019.pdf"},"version_id":"d8eb156c-538f-405f-9547-b24f04d9546e"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"品質照査","subitem_subject_scheme":"Other"},{"subitem_subject":"盛土堤体","subitem_subject_scheme":"Other"},{"subitem_subject":"現場透水試験法","subitem_subject_scheme":"Other"},{"subitem_subject":"土の透水性","subitem_subject_scheme":"Other"},{"subitem_subject":"ゲルフ式プレッシャーインフィルトロメータ法","subitem_subject_scheme":"Other"},{"subitem_subject":"ゲルフ式ウェルパーミアメータ法","subitem_subject_scheme":"Other"},{"subitem_subject":"Quality inspection","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Embankment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Field permeability test","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Soil permeability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Guelph pressure infiltrometer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Guelph well permeameter","subitem_subject_language":"en","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"盛土堤体の品質照査に向けた簡便で精度のよい現場透水試験法の提案","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"盛土堤体の品質照査に向けた簡便で精度のよい現場透水試験法の提案"},{"subitem_title":"盛土堤体の品質照査に向けた簡便で精度のよい現場透水試験法の提案","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","1607"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-04-18"},"publish_date":"2007-04-18","publish_status":"0","recid":"28476","relation_version_is_last":true,"title":["盛土堤体の品質照査に向けた簡便で精度のよい現場透水試験法の提案"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:58:36.711857+00:00"}