1887

Abstract

P036 ACOUSTIC FREQUENCY SIGNATURES OF LABORATORY FRACTURED ROCKS 1 Introduction. Laboratory acoustic emission (AE) studies are useful as scale models of earthquakes and mining rock bursts. This study is focused on the frequency content of AE signals and ultrasonic transmission signals detected from rock triaxially stressed to fracture. Specifically we investigate AE source (crack) parameters using a spectrum analysis of AE signals. Experimental Technique. We performed triaxial compression tests on rock cores (diameter 50 mm length 100 mm) with symmetric and asymmetric top loading (Fig.1). The asymmetric loading test is used to fix the nucleation patch from which a shear

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609-pdb.15.P036
2001-06-11
2020-04-04
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.15.P036
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error