| Issue |
E3S Web Conf.
Volume 109, 2019
International Conference Essays of Mining Science and Practice
|
|
|---|---|---|
| Article Number | 00026 | |
| Number of page(s) | 10 | |
| DOI | https://doi.org/10.1051/e3sconf/201910900026 | |
| Published online | 09 July 2019 | |
The feasibility evaluation of using cyclic thermal effect in the rock-cutting tools during drilling hard rock
1
Dnipro University of Technology, 49005, Dnipro, D. Yavornytskoho Ave., 19, Ukraine
2
Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 49005, Dnipro, Simferopolska Str., 2a, Ukraine
3
Ukrainian State University of Chemical Technology, 49005, Dnipro, Haharina Ave., 8, Ukraine
* Corresponding author: roxiki@i.ua
The possibility of using cyclic thermal effect in drilling tools for softening of rocks is considered in the article. It is shown that during drilling in the phase of heating, the rock sections can actually be heated to 1000 °C, and it is possible to achieve even higher temperatures with the use of corresponding frictional heating elements. It has been found that the phase of cooling of the heated section of the rock can ensure guaranteed cracking of the rock for subsequent mechanical destruction.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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