Laboratory acoustic emission study for earthquake generation process

(整期优先)网络出版时间:2014-06-16
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Sincethesimilarityinsizedistributionofearthquakesandacousticemissions(AE)wasfoundinthe1960s,manylaboratorystudieshavebeenmotivatedbytheneedtoprovidetoolsforthepredictionofminingfailuresandnaturalearthquakes.Thispaperaims,ontheonehand,todrawanoutlineoflaboratoryAEstudiesinthelast50years,whichhaveaddressedseismologicalproblems.TopicsincludethepowerlawsinwhichthesimilaritybetweenAEsandearthquakesisinvolvedandprogressthathasbeenmadeinAEtechnologyandlaboratoryAEstudy.Ontheotherhand,thisstudywillhighlightsomekeyissuesintensivelydiscussed,especiallyinthelastthreedecades,suchasaspectsrelatedtothepre-failuredamageevolution,faultnucleationandgrowthinbrittlerocksanddiscussfactorsgoverningtheseprocesses.