@inproceedings{2ea12f3157704c148a480dc3fbd536c7,
title = "Immediate roof stability analysis for new room-and-pillar mining technology in {"}Estonia{"} mine",
abstract = "This paper analysis the immediate roof (IR) stability by the deformation criteria for new room-and-pillar mining technology with modern machines in {"}Estonia{"} mine. The new mining technology based on a blasting method to move from packaged to emulsion explosives, from 2.0 m to 4.0 m boreholes (FRANZ SCHELL machine) and on new undercutting (SMAG machine) method. With such equipped new technology the entry advance rates reached 3.8 m. As a result of such greater advance rates the situations with unsupported room length up to 5.5 m with decreasing the stability of IR can be expected. The analysis of IR stability based on an in-site underground testing by the leaving bench-mark stations and convergence measurements. The main targets of this study to determine the main parameters for supported/unsupported IR deformation in areas with great entry advance rates and risk analysis concept elaboration.",
keywords = "Deformation criteria, Immediate roof, Risk analysis, Room-and-pillar mining, Stability",
author = "Oleg Nikitin and Sergei Sabanov",
year = "2005",
month = jan,
day = "1",
doi = "10.17770/etr2005vol1.2138",
language = "English",
isbn = "9984779068",
series = "Vide. Tehnologija. Resursi - Environment, Technology, Resources",
publisher = "Rezekne Higher Education Institution",
pages = "262--269",
booktitle = "Proceedings of the 5th International Scientific and Practical Conference on Environment, Technology and Resources",
note = "null ; Conference date: 16-06-2005 Through 18-06-2005",
}