E3S Web Conf.
Volume 106, 20195th International Scientific Conference on Civil Engineering-Infrastructure-Mining
|Number of page(s)||11|
|Published online||24 June 2019|
The method of assessing the quality of the excavation workmanshift in the underground coal mine
Polska Grupa Górnicza, Oddział KWK “Ruda”, Ruda Śląska, Poland
2 Silesian University of Technology, Faculty of Mining and Geology, Gliwice, Poland
1 Corresponding author: firstname.lastname@example.org
A new method of assessing the quality of the heading workmanship was proposed in this article. The method includes 13 parameters characterizing the quality of excavation performance, namely: the heading breach width, the heading useful height, the heading useful width, the angle of inclination of arch, the horizontal offset of arch (direction), the vertical offset of arch (cancellation), distance between mine roadway support, the arch set overlap length, the tightening torque of clamps screws, development of struts, dadding and the contact of support with rock strata. For each element of the excavation the number of quality points is determined based on by the amount of multiples of the quality statistics QN from the qualifying constant. After adding up the points, the final grade is obtained in the form of the quality category. The conclusion is an example of the evaluation of the quality of heading workmanship according to the developed method.
Key words: Mining engineering / Underground structure / Build quality
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (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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