Prediction of drilling rate utilizing common rock properties and driller specifications: percussion drilling

A Yazitova, S Yagiz

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The purpose of this paper is to examine rock properties and driller specifications to estimate drilling rate (DR) for percussion drillers. In order to predict the DR, data that is belongs to percussion drilling were collected from the literature and re-constructed to compute rock brittleness (BI) as a function of strength both uniaxial compressive strength (UCS) and Brazilian tensile strength (BTS) and also density (D) of rocks. Further, simple and multiple both linear and non-linear regression analyses were performed to estimate the rate of drilling via input variables including UCS, BTS and BI; and also driller specifications such as operational pressure (OpP) and bit diameter (BitD). Concluding remark is that drilling rate estimation for percussion drillers are multiple non-linear regression task to obtain the best accurate model for predicting the DR. It is resulted that the BI, UCS, OpP and BitD having significant effect on the DR. Lastly, the most precise equation for estimating the DR is suggested with correlation coefficient (r) of 0.85.
Original languageEnglish
Title of host publicationWorld Tunnelling Congress, WTC2020, Malaysia
PublisherInternational Tunnelling and Underground Space Association
Number of pages5
Publication statusPublished - May 2020
EventWorld Tunnelling Congress WTC2020 - Malaysia, Kuala Lumpur, Malaysia
Duration: May 15 2020May 22 2020


ConferenceWorld Tunnelling Congress WTC2020
Abbreviated titleWTC2020
CityKuala Lumpur
Internet address


Dive into the research topics of 'Prediction of drilling rate utilizing common rock properties and driller specifications: percussion drilling'. Together they form a unique fingerprint.

Cite this