| Issue |
E3S Web Conf.
Volume 105, 2019
IVth International Innovative Mining Symposium
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 6 | |
| Section | Environment Saving Mining Technologies | |
| DOI | https://doi.org/10.1051/e3sconf/201910501008 | |
| Published online | 21 June 2019 | |
Experimental Studies about Characteristics of the Rocks Displacement and State of Bearing Pressure on the Haulage Roadway
1
Quang Ninh University of Industry, Quang Ninh, Vietnam
2
National University of Science and Technology MISiS, Moscow, Russia
* Corresponding author: phamducthangmct@gmail.com
Comprehensive studies were conducted using measuring stations to measure the rock pressure and displacements of the roof rocks in the mine workings adjacent to the face when extracting medium thick inclined coal seams with the use of longwall (seam 6 at the Quang Hanh mine of Quang Ninh coal basin, Vietnam). The results of the study show that the displacement of the roof rock on the parallel roadway increases sharply at a distance of 1 to 12 m to the face, varies from 20 to 40 mm when the mining depth of the coal seam is 200 m and the maximum rock pressure on the haulage roadway supports is located at a distance of 3–8 m ahead of the face and is from 14 to 16 tons ranges.
© 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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.