eesti teaduste
akadeemia kirjastus
SINCE 1984
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2021): 1.442
Long-term stability of pillars in an underground oil shale mine; pp. 142–149
PDF | 10.3176/oil.2022.2.04

Enno Reinsalu, Enn Lüütre†, Tauri Põldema, Erik Väli

A method was developed to predict the collapse of underground rooms in a previously mined area. This methodology is necessary to assess the condition of the excavated areas in the case of an additional load of buildings and supporting pillars weakening. As an example, the ground stability of the Estonia mine under the waste dump has been calculated.


1. VNIMI. Temporary Manual for Determining the Elements of the Room and Pillar Mining Method for Oil Shale Mines. Research Institute of Mining Geomechanics and Mine Surveying – Interdisciplinary Scientific Centre ˮVNIMIˮ, Leningrad, 1972, 48 p (in Russian).

2. Lüütre, E., Talve, L. On the long-term strength of pillars rocks on shale mines. Proceedings of the Tallinn Polytechnic Institute, 1980, No. 493, 21‒25 (in Russian).

3. Pastarus, J. R., Tomberg, T. 2001. Mining block stability analysis in Estonian oil shale mines by statistical methods. In: Proc. of the 3nd International Conference ˮEnvironment. Technology. Resourcesˮ, Rezekne, Latvia, June 19−21, 2001, 132−137.

4. Pastarus, J. R. Mining block life-time prediction method by roof-to-floor convergence. In: Proc. of the 14th International Symposium on Mine Planning and Equipment Selection (MPES 2005) and the 5th International Conference on Computer Application in the Minerals Industries (CAMI 2005), Singhal, R. J., Fytas, K., Chiwetelu, C., eds., Alberta, Canada, 2005, 994−1009. 

5. Reinsalu, E. Stochastic approach to room-and-pillar failure in oil shale mining. Proc. Estonian Acad. Sci. Eng., 2000, 6(3), 207‒216.

6. Nikitin, O. Mining block stability prediction by the Monte Carlo Method. In: Proc. 4th Intern. Conf. ˮEnvironment. Technology. Resourcesˮ, Rezekne, Latvia; 26‒28 June 2003, 185‒190.

7. Kütimets, K., Ellmann, A., Väli, E., Kanter, S. Underground oil shale mine surveying using handheld mobile laser scanners. Oil Shale, 2021, 38(1), 42‒64.

Back to Issue