{"created":"2021-03-01T06:06:54.884873+00:00","id":3171,"links":{},"metadata":{"_buckets":{"deposit":"8edbedad-0a03-4d8c-8988-d18abd85f9db"},"_deposit":{"id":"3171","owners":[],"pid":{"revision_id":0,"type":"depid","value":"3171"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00003171","sets":["176:488:489","453:454"]},"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Factors of earthquake damage in terrace and alluvial lowland areas of the Mid Niigata Prefecture Earthquake 2004 in the Yukyuzan area, Nagaoka city : Damage control by valley-shaped low grounds and ditches"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicPageEnd":"464","bibliographicPageStart":"455","bibliographicVolumeNumber":"60","bibliographic_titles":[{"bibliographic_title":"地球科学"},{"bibliographic_title":"地球科学","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Mid Niigata Prefecture Earthquake on 23 Oct. in 2004 caused the extensive damage to houses and the ground. The results of the extra survey on the relationship between the earthquake damage and geologic setting in the Yukyuzan area, Nagaoka city, are as follows: (1) Why did house damages concentrate within a zone on a terrace surface which is generally assumed to be stable?; Valley-shaped low grounds are confirmed on the Lower terraces where residential areas are in the studied area. The damage was concentrated along the embankment areas of bottom and slope in the valley-shaped low grounds. Geologic factors of the damage were inferred that alluvial muddy deposits and embankment displaced to the lower slope. (2) Why did the damage of the new town occurred sporadically on the ground of embankment in alluvial lowland? The damage distributed in the zone controlled by the ditch beside houses. The ditch was the old irrigation channel. The ground of residential areas inclines toward the northwest by the down slope of 0.7/100. The damage was concentrated in the downstream area of thick embankment and deep ditches, around one meter. The deformed or broken ditches beside damaged houses did not have a cover. The over earth pressure by the seismic vibration in the inclined residential grounds caused that the embankment was displaced with houses and pushed the wall of open ditches. Thereby the houses were seriously damaged by the seismic shock. Housing-land development will increasingly go toward the alluvial lowland in the future. It is important to take precautions against the ground displacement due to the seismic vibration, for example, enhancement of the breast wall of embankment and the sidewall of ditches, and installation of a steel or concrete cover on ditches, to resist against a seismic shock.","subitem_description_type":"Abstract"},{"subitem_description":"2004年10月23日の新潟県中越地震において,長岡市悠久山地域の被害要因に関する疑問を解明するため,補充調査を行った.その結果,以下のことが判明した.(1)一般に地盤が良いとされる段丘地でなぜ被害の集中域がみられたのか:住宅が集中する段丘面上にふたつの谷状凹地を確認したが,被害はこの谷状凹地の谷底や斜面の盛土地に集中した.とくに谷頭など,傾斜地の盛土部で顕著な被害がでた.被害要因として,この谷状凹地を埋積した沖積泥質堆積物や盛土が低い方へ変位したことが考えられる.(2)沖積盛土の大規模住宅地でなぜ被害が偏在したのか:損壊家屋は隣地との境界に設けられた水路(かつての水田の用排水路)脇に多かった.宅地地盤は北西側に0.7/100程度傾斜しており,被害は盛土が厚く深い水路(約1m)がある下流部に集中した.このような水路には一様にフタがない凹地空間となっている.被害要因として,傾斜した地盤に地震時の過剰な土圧が発生したため,盛土が水路・側溝の凹地空間へ押し出し,家屋とともに変位したことが考えられる.大規模な新興住宅地の開発は,今後ますます沖積低地へ向かうと思われる.沖積低地でも微傾斜地や,深い水路や側溝がある宅地地盤には,地震動による過剰な土圧の発生に耐えられる盛土の土留め擁壁や水路・側溝の側壁の耐力強化,グレーチングやコンクリート製のフタの設置といった,地盤の変位を抑える対策が不可欠である.","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"41212","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kubota, Yoshihiro"}]},{"nameIdentifiers":[{"nameIdentifier":"41213","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Yamazaki, Kosuke"}]},{"nameIdentifiers":[{"nameIdentifier":"41214","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Iikawa, Kensho"}]},{"nameIdentifiers":[{"nameIdentifier":"41215","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Yoshikoshi, Masakatsu"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"地学団体研究会"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00141269","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03666611","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"久保田, 喜裕"}],"nameIdentifiers":[{"nameIdentifier":"41208","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山崎, 興輔"}],"nameIdentifiers":[{"nameIdentifier":"41209","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"飯川, 健勝"}],"nameIdentifiers":[{"nameIdentifier":"41210","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉越, 正勝"}],"nameIdentifiers":[{"nameIdentifier":"41211","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":"2019-07-30"}],"displaytype":"detail","filename":"ZB_60(6)_455-464.pdf","filesize":[{"value":"5.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ZB_60(6)_455-464.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/3171/files/ZB_60(6)_455-464.pdf"},"version_id":"d118166c-c318-4994-9ed6-6a912ef80660"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"the　Mid　Niigata　Prefecture　earthquake 2004","subitem_subject_scheme":"Other"},{"subitem_subject":"Yukyuzan area","subitem_subject_scheme":"Other"},{"subitem_subject":"Nagaoka　city","subitem_subject_scheme":"Other"},{"subitem_subject":"earthquake　damage","subitem_subject_scheme":"Other"},{"subitem_subject":"damage　control","subitem_subject_scheme":"Other"},{"subitem_subject":"Valley-shaped　low　ground","subitem_subject_scheme":"Other"},{"subitem_subject":"ditch","subitem_subject_scheme":"Other"},{"subitem_subject":"embankment","subitem_subject_scheme":"Other"},{"subitem_subject":"ground displacement","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":"新潟県中越地震における長岡市悠久山地域の段丘および沖積低地の震害要因 : 谷状凹地と水路による被害規制","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"新潟県中越地震における長岡市悠久山地域の段丘および沖積低地の震害要因 : 谷状凹地と水路による被害規制"},{"subitem_title":"新潟県中越地震における長岡市悠久山地域の段丘および沖積低地の震害要因 : 谷状凹地と水路による被害規制","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","489"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-04-11"},"publish_date":"2012-04-11","publish_status":"0","recid":"3171","relation_version_is_last":true,"title":["新潟県中越地震における長岡市悠久山地域の段丘および沖積低地の震害要因 : 谷状凹地と水路による被害規制"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:36:20.330134+00:00"}