Characteristics of vibration at failure and its relation to rock properties during tensile failure




Rock properties, tensile loading, rock vibrations, piezoelectric sensors, PicoScope


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.


Stein S. and Wysession M. (2013): "An Introduction to Seismology, Earthquakes, and Earth Structure”, Wiley India Private Limited, 512 pp.

Hucka, V., (1965): "A Rapid Method for Determining the Strength of Rocks In Situ”, International Journal of Rock Mechanics and Mining Sciences, Vol. 2, No. 2, pp. 127 – 134.

Yang Y. W., Bhalla S., Wang C., Soh C. K., Zhao J. (2007): "Monitoring of Rocks Using Smart Sensors”, Tunnelling and Underground Space Technology, Vol. 22, Issue 2, March 2007, pp. 206 221.

Trolier-McKinstry S. (2008): "Crystal Chemistry of Piezoelectric Materials”, Piezoelectric and Acoustic Materials for Transducer Applications, Edited by A. Safari, E. K. Akdogan, Springer Publishers, New York, pp. 39 56.

Denecke, E. J., (2007): "Let's Review: Earth Science, The Physical Setting”, 2nd Edition, Barron's Educational Series, Inc., New York, 348 – 350.

Jumikis, A. R., (1988): "Rock Mechanics”, CRC Press, 2nd Edition, 614 pp.

Brown, E. T. (Editor), (1981): "Rock Characterization, Testing and Monitoring: ISRM Suggested Methods”, Pergamon Press, 1981, 211 pp.

Singh, R. N. and Ghose, A. K., (2006): "Engineered Rock Structures in Mining and Civil Construction”, Taylor and Francis Publishers, pp. 118 – 120.

Lama, R. D. and Vutukuri, V. S., (1978): "Handbook on Mechanical Properties of Rock: Testing Techniques and Results”, Trans Tech Publishers, 2nd Edition, Vol. 1, pp. 27-246.

Anon. (1988): "Manual on Rock Mechanics”, Prepared by Central Soil and Materials Research Station, Central Board of Irrigation and Power, New Delhi, pp. 175-176.

Cafiso S., Cuomo M., Di Graziano A., Vecchio C., (2013): "Experimental Analysis for Piezoelectric Transducers Applications into Roads Pavements”, Advanced Materials Research, Trans Tech Publications, Vol. 684, pp. 253 257.

Tressler J. F., Alkoy S. and Newnham R. E., (1998):, "Piezoelectric Sensors and Sensor Materials”, Journal of Electroceramics, Vol. 2, Issue 4, December 1998, pp. 257 272.




How to Cite

Kumar Pal, S., Pandey, N., & Kumar Tripathi, A. (2021). Characteristics of vibration at failure and its relation to rock properties during tensile failure. Journal of Mines, Metals and Fuels, 68(4), 115–119.