{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1050006973335537152.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"HDL","@value":"http://hdl.handle.net/2433/263338"}},{"identifier":{"@type":"DOI","@value":"10.1093/gji/ggy493"}},{"identifier":{"@type":"URI","@value":"http://academic.oup.com/gji/article-pdf/216/3/1507/27203710/ggy493.pdf"}},{"identifier":{"@type":"HANDLE","@value":"2433/263338"}},{"identifier":{"@type":"NAID","@value":"120007052721"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"en","@value":"Moment Tensor Analysis of Acoustic Emissions Induced by Laboratory-based Hydraulic Fracturing in Granite,"}],"dc:language":"en","description":[{"type":"Abstract","notation":[{"@language":"en","@value":"Moment Tensors of hydraulically induced AEs: Hydraulic fracturing is an important technique in the development of enhanced geothermal systems and unconventional resources. Although the fracture modes induced by hydraulic fracturing influence the recovery efficiency of the resources, the current understanding of this relationship is insufficient. In this study, we considered the acoustic emissions (AEs) induced during hydraulic fracturing under uniaxial loading conditions in the laboratory, and applied a moment tensor analysis by carefully correcting the coupling condition and directivity of AE transducers. Experiments were conducted for two types of Kurokami–jima granite samples: those with a rift plane perpendicular (Type H) or parallel (Type V) to the expected direction of fracture propagation (i.e. along the loading axis). In the experiments, both sample types experienced a significant number of shear, tensile and compressive events. The dominant fracture mode for Type H samples is found to be tensile events in which the fracture plane is parallel to the loading axis, whereas for Type V samples, shear events are dominant. This difference suggests that the dominant fracture modes induced by hydraulic fracturing are highly dependent on the relationship between the direction of fracture propagation and orientation of pre-existing weak planes."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1070006973335537158","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000412400763"}],"foaf:name":[{"@language":"en","@value":"Yamamoto, Kazune"},{"@language":"ja","@value":"山本, 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Published by Oxford University Press on behalf of The Royal Astronomical Society. All rights reserved."],"url":[{"@id":"http://academic.oup.com/gji/article-pdf/216/3/1507/27203710/ggy493.pdf"},{"@id":"http://hdl.handle.net/2433/263338"}],"foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Fracture%20and%20flow","dc:title":"Fracture and flow"},{"@id":"https://cir.nii.ac.jp/all?q=Earthquake%20source%20observations","dc:title":"Earthquake source observations"},{"@id":"https://cir.nii.ac.jp/all?q=Induced%20seismicity","dc:title":"Induced seismicity"},{"@id":"https://cir.nii.ac.jp/all?q=Fractures","dc:title":"Fractures"},{"@id":"https://cir.nii.ac.jp/all?q=faults","dc:title":"faults"},{"@id":"https://cir.nii.ac.jp/all?q=high%20strain%20deformation%20zones","dc:title":"high strain deformation zones"}],"dcterms:subject":[{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Fracture and flow"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Earthquake source observations"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Induced seismicity"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Fractures"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"faults"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"high strain deformation zones"}]}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040000781899953024","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"16H04614"},{"@type":"JGN","@value":"JP16H04614"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16H04614/"}],"notation":[{"@language":"ja","@value":"室内実験とＡＥ波形解析による水圧破砕で造成される亀裂評価手法の開発"},{"@language":"en","@value":"Development of hydraulic fracture evaluation by laboratory experiments and AE analysis"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050001335849268224","@type":"Article","resourceType":"学術雑誌論文(journal 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