{"created":"2024-03-04T07:58:20.897870+00:00","id":2000062,"links":{},"metadata":{"_buckets":{"deposit":"1c995d20-e05a-452e-986b-4dcb867a6158"},"_deposit":{"created_by":12,"id":"2000062","owner":"12","owners":[12],"pid":{"revision_id":0,"type":"depid","value":"2000062"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:02000062","sets":["1706970004180:1","87:661:1727312983899:663:1707895637859"]},"author_link":["5687"],"control_number":"2000062","item_12_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-03-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"182","bibliographicPageStart":"141","bibliographicVolumeNumber":"202","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":"It is said that many of old small earth dams are needed urgently to repair for damage and leakage, and to reinforce embankment in earthquake area. We need strong and impervious soil to repair such old small earth dams. However, it comes to difficult increasingly to promote repair construction because of the shortage of suitable material, recently.\nOn the other hand, there is much of muddy soil piling up in such old small earth dams. That causes to reduce their function of water storage and water quality. Sometimes, muddy soil in reservoir is dredged and removed to recover their function. However, in case to dispose of soil, it is not easy to transport in that condition, because of high water content and very soft clay soil. Recently, it comes to difficult even to secure space to dispose of soil, because of the protection of environment and economy.\nThen, our research group \"EFFICIENCY IN REPAIR OF OLD SMALL EARTH DAMS\" have developed \"Embankment Method by Crushed and Compacted Stabilized Muddy Soil\" as new construction technology that constructs sloping core zone for leakage control or the counterweight embankment with stabilized muddy soil.\nAfter stabilizing muddy soil with curing, crushing and banking, this material comes to be applicable to the embankment material, enough to have needed quality such as strength, impermeability and deformation. That makes it unnecessary to dispose of muddy soil and get new strong, impervious material for embankment. Now we can dredge and remove muddy soil, at the same time, repair and reinforce embankment. Therefore, it is expected to repair effectively the old dam embankment.\nThis tentative guideline shows construction method to repair or reinforce embankment by \"Embankment Dam Method by Crushed and Compacted Stabilized Muddy Soil\" from the results of study and construction, laboratory testing procedure for mixing design, determining method of design strength, quality control test under construction, and so on.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"老朽ため池は築造年代が古く，堤体破損や漏水の補修，大規模地震の発生が想定される地域での耐震補強など，早急な改修が必要なものも多い。このようなため池堤体の改修には，強度や遮水性に優れた築堤土が必要であるが，最近ではこの築堤土の入手が困難になってきており，改修や補強が計画どおりに進まない事例が増えてきている。一方，このような老朽ため池には，底泥土が厚く堆積している例が多く，貯水容量の減少や水質の悪化など，ため池機能の阻害や低下の原因になっている。一部では機能回復のための対策として底泥土の浚渫除去が行われているが，底泥土は一般に粘土・シルト分を多く含み含水比が高い軟弱土なため，捨土するにもそのままの状態では運搬することさえも容易ではない。また，最近ではその捨て場所の確保も環境面あるいは経済性から難しくなってきている。\nしかしFig.１に概念的に示すように，ため池に堆積した底泥土を固化処理して，そのため池の堤体の漏水対策として傾斜遮水ゾーン（前刃金工），あるいは堤体補強のための押え・腹付け盛土等を築造するための築堤土として利用できれば，底泥土の処分，築堤土の採取が不要になる効果がある。併せて底泥土の除去処分と堤体の改修・補強を同時に行うことが可能である。\n本研究は官民連携新技術研究開発事業として，独立行政法人農業工学研究所と「ため池改修工事の効率化」新技術研究開発組合が行ったものである。その内容は固化処理した底泥土の基本的な強度・変形特性を室内土質試験により調べ(福島，2000），またこの室内試験結果を確認するための現場実証試験を実施工レベルで実施し(福島，2001），ため池内に堆積した底泥土を固化処理し，堤体改修の築堤土として有効活用する『砕・転圧盛土工法』として開発したものである。\nなお，砕・転圧盛土工法は，特許第3241339号「ため池の底泥を用いた盛土材の作製方法およびため池の堤体の補修，補強方法ならびに破砕機」（特許権者：独立行政法人農業工学研究所，株式会社フジタ，太平洋セメント株式会社）として認定された特許工法である。\n本工法の設計・施工法は，これらの成果及び施工実績から，固化処理した底泥土の砕・転圧盛土工法によるため池堤体の改修あるいは補強工事を行うための設計・施工法の参考として示すものである。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_12_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/0002000062","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":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TANI, Shigeru","creatorNameLang":"en"},{"creatorName":"谷, 茂","creatorNameLang":"ja"},{"creatorName":"タニ, シゲル","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"TANI","familyNameLang":"en"},{"familyName":"谷","familyNameLang":"ja"},{"familyName":"タニ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Shigeru","givenNameLang":"en"},{"givenName":"茂","givenNameLang":"ja"},{"givenName":"シゲル","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"5687","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":"2024-03-04"}],"displaytype":"detail","filename":"TRNIREJ202_141-182.pdf","filesize":[{"value":"709 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","mimetype":"application/pdf","url":{"url":"https://repository.naro.go.jp/record/2000062/files/TRNIREJ202_141-182.pdf"},"version_id":"3992ff4c-cd81-4874-bcf7-21ca2aa143b6"}]},"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":"砕・転圧盛土工法の設計・施工法について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"砕・転圧盛土工法の設計・施工法について","subitem_title_language":"ja"},{"subitem_title":"Design and Construction Method to Repair Embankment by Crushed and Compacted Stabilized Muddy Soil in old small Earth Dam","subitem_title_language":"en"}]},"item_type_id":"12","owner":"12","path":["1707895637859","1"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-03-04"},"publish_date":"2024-03-04","publish_status":"0","recid":"2000062","relation_version_is_last":true,"title":["砕・転圧盛土工法の設計・施工法について"],"weko_creator_id":"12","weko_shared_id":-1},"updated":"2024-08-08T02:21:43.805529+00:00"}