Please use this identifier to cite or link to this item: https://idr.nitk.ac.in/jspui/handle/123456789/13472
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dc.contributor.authorKumar, B.R.
dc.contributor.authorVardhan, H.
dc.contributor.authorGovindaraj, M.
dc.date.accessioned2020-03-31T08:45:58Z-
dc.date.available2020-03-31T08:45:58Z-
dc.date.issued2011
dc.identifier.citationEngineering Geology, 2011, Vol.123, 4, pp.333-337en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/13472-
dc.description.abstractThe process of drilling, in general, always produces sound. Though sound is used as a diagnostic tool in mechanical industry, its application in predicting rock property is not much explored. In this study, an attempt has been made to estimate rock properties such as uniaxial compressive strength, Schmidt rebound number and Young's modulus using sound level produced during rotary drilling. For this purpose, a computer numerical controlled vertical milling centre was used for drilling holes with drill bit diameters ranging from 6 to 20. mm with a shank length of 40. mm. Fourteen different rock types were tested. The study was carried out to develop the empirical relations using multiple regression analysis between sound level produced during drilling and rock properties considering the effects of drill bit diameter, drill bit speed and drill bit penetration rate. The F-test was used to check the validity of the developed models. The measured rock property values and the values calculated from the developed regression model are fairly close, indicating that the developed models could be efficiently used with acceptable accuracy in prediction of rock properties. 2011 Elsevier B.V.en_US
dc.titleSound level produced during rock drilling vis- -vis rock propertiesen_US
dc.typeArticleen_US
Appears in Collections:1. Journal Articles

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