caa a22 4500 605454523 CHVBK 20210128100207.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10064-014-0715-4 doi (NATIONALLICENCE)springer-10.1007/s10064-014-0715-4 Cuttability assessment using the Drilling Rate Index (DRI) [Elektronische Daten] [Serdar Yasar, Mehmet Capik, Ali Yilmaz] For given geological conditions, cuttability or performance prediction can be expressed by specific cutting force (SFC), specific normal force (SFN), specific energy (SE), and pick wear rate. These parameters are difficult to determine. For this reason researchers try to assess these parameters indirectly by rock mechanical parameters. The Drilling Rate Index (DRI) is the most important input parameter of a commonly used performance prediction model for tunnel boring machines. However, little research has been seen in the literature about assessing cuttability indirectly by DRI. In this study, different types of rock and ore samples were subjected to a small-scale rock cutting test, the Cerchar abrasivity test, the Sievers J miniature drill test, and the brittleness (S 20) test. With the aid of the Sievers and brittleness test results, the DRI parameter was determined. SFC, SFN, and SE, which are the output parameters of small scale rock cutting tests, and the Cerchar abrasivity index values were correlated with Sievers J (S j ) value and DRI. It was seen that SFC, SFN, SE and CAI parameters slightly decreased with increasing Sievers J value and DRI. With these results, it can be stated that DRI and S j could be an alternative to other mechanical rock parameters for assessing cuttability. Springer-Verlag Berlin Heidelberg, 2015 Small Scale Rock Cutting Test nationallicence Specific energy nationallicence Cutter forces nationallicence Cerchar Abrasivity Index (CAI) nationallicence Drilling Rate Index (DRI) nationallicence Yasar Serdar Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut Capik Mehmet Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut Yilmaz Ali Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/4(2015-11-01), 1349-1361 1435-9529 74:4<1349 2015 74 10064 https://doi.org/10.1007/s10064-014-0715-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10064-014-0715-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yasar Serdar Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 700 1- Capik Mehmet Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 700 1- Yilmaz Ali Department of Mining Engineering, Faculty of Engineering, Karadeniz Technical University, 61080, Trabzon, Turkey aut NATIONALLICENCE 773 0- Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/4(2015-11-01), 1349-1361 1435-9529 74:4<1349 2015 74 10064