Characteristics of vibration at failure and its relation to rock properties during tensile failure
Authors
-
,IN
Samir Kumar Pal -
,INNikhil Pandey
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,INAnup Kumar Tripathi
DOI:
https://doi.org/10.18311/jmmf/2020/27641Keywords:
Rock properties, tensile loading, rock vibrations, piezoelectric sensors, PicoScopeAbstract
The paper describes the study carried out to determine the relationships between the amount of vibrations that happen inside the rock at the time of failure under tensile loading and different rock properties such as uniaxial compressive strength, uniaxial tensile strength, Young's modulus, cohesion, angle of internal friction and density. It is then tried to interpret what are the factors that affect the vibrations and the time to failure. To capture the vibrations piezoelectric sensors are used which capture the acoustic signals and convert them into electric signals. With the help of Picoscope, it was then possible to recover the acoustic signals. At the time of failure, the peak voltage (h) was recorded along with the span of time the rock took to fail (w). The h/w ratio was then obtained and used to relate it with different rock properties. h/w ratio is the measure of how much vibrations happen inside the rock and for what amount of time. It was observed to be highly related to uniaxial tensile strength, angle of internal friction and rock density.
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Accepted 2021-04-18
Published 2021-04-18
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