<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The underground mining of the rock salt deposit from Slănic started over 350 years ago, in bell-shape room (Ocna din Deal and Ocna din Vale) and in large trapezoidal rooms (Carol, Mihai and Unirea mines), until 1970, generating a volume of underground excavations of over 5.3 million m<sup>3</sup>. Over time, these large excavations have lost their stability (collapse of the mines to the surface and various degrees of instability of the Carol and Mihai mines), keeping only the Unirea mine in operation for tourist purposes. This article is a synthesis of the analysis with 3D finite elements, in elasto-plasticity, of the state of stress and strain developed around the excavations and highlighting the factors that led to the loss of their stability, focusing on the Unirea mine.</p>
</abstract>

The underground mining of the rock salt deposit from Slănic started over 350 years ago, in bell-shape room (Ocna din Deal and Ocna din Vale) and in large trapezoidal rooms (Carol, Mihai and Unirea mines), until 1970, generating a volume of underground excavations of over 5.3 million m3. Over time, these large excavations have lost their stability (collapse of the mines to the surface and various degrees of instability of the Carol and Mihai mines), keeping only the Unirea mine in operation for tourist purposes. This article is a synthesis of the analysis with 3D finite elements, in elasto-plasticity, of the state of stress and strain developed around the excavations and highlighting the factors that led to the loss of their stability, focusing on the Unirea mine.

Finite Element Modelling of the Stability of Underground Mining Excavations at Old Mines – Slănic Salt Mine

Mining Revue

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

The underground mining of the rock salt deposit from Slănic started over 350 years ago, in bell-shape room (Ocna din Deal and Ocna din Vale) and in large...

Finite Element Modelling of the Stability of Underground Mining Excavations at Old Mines – Slănic Salt Mine

Published Online: Apr 13, 2021

Page range: 12 - 23

DOI: https://doi.org/10.2478/minrv-2021-0002

Keywords
rock salt, trapezoidal room, bell-shape room, pillar, modeling, finite element, stress, strain, displacement, stability

© 2021 Dacian-Paul Marian et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Finite Element Modelling of the Stability of Underground Mining Excavations at Old Mines – Slănic Salt Mine

Published Online: Apr 13, 2021

Page range: 12 - 23

DOI: https://doi.org/10.2478/minrv-2021-0002

Keywordsrock salt, trapezoidal room, bell-shape room, pillar, modeling, finite element, stress, strain, displacement, stability

© 2021 Dacian-Paul Marian et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Keywords
rock salt, trapezoidal room, bell-shape room, pillar, modeling, finite element, stress, strain, displacement, stability