<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The paper presents an analysis of seismic activity for selected areas of hard coal mine executing exploitation in a rock mass with a variable degree of rock disturbance, i.e., also with a varied number of previous mined-out seams. A distribution of vertical stress and a value of vertical stress concentration coefficient were also determined in the strata of immediate roof of the seams planned for mining. In the analyzed case, despite the lack of thick and solid strata of sandstones in the roof, the rock mass emits seismic activity, where the energy largely depends upon an impact of exploitation edges and tectonic disturbance.</p></abstract>

The paper presents an analysis of seismic activity for selected areas of hard coal mine executing exploitation in a rock mass with a variable degree of rock disturbance, i.e., also with a varied number of previous mined-out seams. A distribution of vertical stress and a value of vertical stress concentration coefficient were also determined in the strata of immediate roof of the seams planned for mining. In the analyzed case, despite the lack of thick and solid strata of sandstones in the roof, the rock mass emits seismic activity, where the energy largely depends upon an impact of exploitation edges and tectonic disturbance.

The Impact of Multiple Seam Mining Exploitations on Seismic Activity and State of Stress

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The paper presents an analysis of seismic activity for selected areas of hard coal mine executing exploitation in a rock mass with a variable degree of rock...

The Impact of Multiple Seam Mining Exploitations on Seismic Activity and State of Stress

Published Online: May 17, 2017

Page range: 53 - 62

DOI: https://doi.org/10.1515/sgem-2017-0005

Keywords
mining, longwall system, seismic activity

© by Tadeusz Majcherczyk

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The Impact of Multiple Seam Mining Exploitations on Seismic Activity and State of Stress

Published Online: May 17, 2017

Page range: 53 - 62

DOI: https://doi.org/10.1515/sgem-2017-0005

Keywordsmining, longwall system, seismic activity

© by Tadeusz Majcherczyk

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
mining, longwall system, seismic activity