Core Cutting Test with Vertical Rock Cutting Rig (VRCR)

World Multidisciplinary Earth Sciences Symposium 2017

Yasar, Serdar^1 ; Yilmaz, Ali Osman^1

Karadeniz Technical University, Mining Engineering Department, Trabzon, Turkey^1

关键词: Block samples;    Paired sample;    Performance prediction;    Project economics;    Research centres;    Rock cutting;    Standard testing;    Testing equipment;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/95/4/042001/pdf
DOI  :  10.1088/1755-1315/95/4/042001

来源: IOP

【 摘 要 】

Roadheaders are frequently used machines in mining and tunnelling, and performance prediction of roadheaders is important for project economics and stability. Several methods were proposed so far for this purpose and, rock cutting tests are the best choice. Rock cutting tests are generally divided into two groups which are namely, full scale rock cutting tests and small scale rock cutting tests. These two tests have some superiorities and deficiencies over themselves. However, in many cases, where rock sampling becomes problematic, small scale rock cutting test (core cutting test) is preferred for performance prediction, since small block samples and core samples can be conducted to rock cutting testing. Common problem for rock cutting tests are that they can be found in very limited research centres. In this study, a new mobile rock cutting testing equipment, vertical rock cutting rig (VRCR) was introduced. Standard testing procedure was conducted on seven rock samples which were the part of a former study on cutting rocks with another small scale rock cutting test. Results showed that core cutting test can be realized successfully with VRCR with the validation of paired samples t-test.