{"created":"2025-05-28T01:51:30.327976+00:00","id":2001309,"links":{},"metadata":{"_buckets":{"deposit":"9cd42b26-e05e-4d02-95d3-e4e999a6a3b6"},"_deposit":{"created_by":121,"id":"2001309","owner":"121","owners":[121],"pid":{"revision_id":0,"type":"depid","value":"2001309"},"status":"published"},"_oai":{"id":"oai:repository.naro.go.jp:02001309","sets":["1706970004180:1","87:661:1727312983899:1727312636636:1748331365361"]},"author_link":["258","11385","11386","259","256","5683"],"item_12_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-03-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"108","bibliographicPageStart":"93","bibliographicVolumeNumber":"207","bibliographic_titles":[{"bibliographic_title":"農村工学研究所技報","bibliographic_titleLang":"ja"},{"bibliographic_title":"Technical report of the National Institute for Rural Engineering","bibliographic_titleLang":"en"}]}]},"item_12_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Groundwater fl ows through a fractured rock slope in the Osawa landslide prevention district in Shizuoka, Japan were investigated through fi eld- and model-based investigations, with a focus on fracture structures and breakthrough curves of tracer tests. Most breakthrough curves observed in the tracer tests showed a rapid concentration peak followed by a tailing, which is the typical breakthrough curve for fractured rock. The relationship between the peak arrival time and the recovery time (or the tailing duration) of this study is consistent with that obtained by correlation analysis of published results. A comprehensive rearranging of much data on longitudinal dispersivity reported in the literatures revealed a signifi cant positive correlation between the longitudinal dispersivity and the testing scale in fractured rocks, and the relation between the dispersivity and testing scale in this rock slope is consistent with that obtained by compilation of published data in fractured rocks. From results of the tracer tests, it can be found that the relatively new fractures with a larger dip angle than old closed fractures parallel to schistosity plane, which were formed by tectonic activities, are the preferential groundwater fl ow path in the rock slope, and groundwater fl ow in the rock slope is dominantly controlled by these new fractures rather than by the hydraulic gradient. These results clearly indicate that fractures in rocks play an important role in determining groundwater fl ow in a rock slope.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_12_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24514/0002001309","subitem_identifier_reg_type":"JaLC"}]},"item_12_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"独立行政法人農業食品産業技術総合研究機構農村工学研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"National Agriculture and Food Research Organization, National Institute for Rural Engineering","subitem_publisher_language":"en"}]},"item_12_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-3289","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TSUCHIHARA, 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