Full Length Article
Drag pick cutting tests: A comparison between experimental and theoretical results

https://doi.org/10.1016/j.jrmge.2018.02.007Get rights and content
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Abstract

This paper aims at reporting the results of a number of drag pick cutting tests on selected igneous rock samples to compare the experimentally determined maximum cutting force (FC) values with theoretically estimated ones. First, a review on theoretical rock cutting models proposed for both chisel and conical picks was presented in detail. Experimental study consists of both chisel and conical pick cutting tests in unrelieved (single-pick) cutting mode with varying cutting depths. FC values were determined from experimental results, and theoretical models were utilized to compute FC for all cutting conditions. Computed and experimentally determined FC data were then compared for a referenced cutting depth. It is shown that the theoretical models might overestimate or underestimate FC and cannot give reliable results. Finally, explanations for these mismatches were presented.

Keywords

Rock cutting mechanics
Rock cutting tests
Vertical rock cutting rig (VRCR)
Cutting force
Rock cutting theories

Cited by (0)

Dr. Serdar Yasar is presently working as a Research & Teaching Assistant in Department of Mining Engineering, Karadeniz Technical University, Trabzon, Turkey. He held a BSc degree in mining engineering from Istanbul Technical University. He obtained his MSc and PhD degrees from Department of Mining Engineering, Karadeniz Technical University. His main research areas include rock mechanics, experimental and theoretical rock cutting mechanics, performance prediction of roadheaders and tunneling. He was co-editor for an international symposium proceeding's book and authored over 30 journal/conference papers in relevant research areas. He is members of International Society for Rock Mechanics and Rock Engineering (ISRM) and Turkish National Society for Rock Mechanics.

Peer review under responsibility of Institute of Rock and Soil Mechanics, Chinese Academy of Sciences.