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Potential for geophysical experiments in large scale tests

January 1, 1981

Potential research applications for large-specimen geophysical experiments include measurements of scale dependence of physical parameters and examination of interactions with heterogeneities, especially flaws such as cracks. In addition, increased specimen size provides opportunities for improved recording resolution and greater control of experimental variables. Large-scale experiments using a special purpose low stress (<40 MPa) biaxial apparatus demonstrate that a minimum fault length is required to generate confined shear instabilities along pre-existing faults. Experimental analysis of source interactions for simulated earthquakes consisting of confined shear instabilities on a fault with gouge appears to require large specimens (˜1m) and high confining pressures (> 100 MPa).

Publication Year 1981
Title Potential for geophysical experiments in large scale tests
DOI 10.1029/GL008i007p00653
Authors J.H. Dieterich
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Index ID 70012121
Record Source USGS Publications Warehouse