Damage stress and acoustic emission characteristics of the Beishan granite

•Crack initiation stress (σci) and crack damage stress (σcd) of the Beishan granite under uniaxial and triaxial compressions are determined.•3D distributions of AE events in the rock samples at different loading stages in the compression tests are obtained.•Methods of indentifying σci and σcd at dif...

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Veröffentlicht in:	International journal of rock mechanics and mining sciences (Oxford, England : 1997) England : 1997), 2013-12, Vol.64, p.258-269
Hauptverfasser:	Zhao, X.G., Cai, M., Wang, J., Ma, L.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building failures (cracks, physical changes, etc.) Buildings. Public works Construction Durability. Pathology. Repairing. Maintenance Exact sciences and technology Geotechnics Granite Nuclear engineering Nuclear power generation Nuclear reactor components Nuclear reactors Repositories Rock Soil mechanics. Rocks mechanics
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Beschreibung
Zusammenfassung:	•Crack initiation stress (σci) and crack damage stress (σcd) of the Beishan granite under uniaxial and triaxial compressions are determined.•3D distributions of AE events in the rock samples at different loading stages in the compression tests are obtained.•Methods of indentifying σci and σcd at different confinements are discussed.•Confinement-dependent damage stress characteristics are analyzed.
ISSN:	1365-1609 1873-4545
DOI:	10.1016/j.ijrmms.2013.09.003