| Abstrakt: |
The underground mining of the rock salt deposit from Slănic started in 1665, with the help of bell shape-type chambers and continued between 1831-1971, with the extraction in large trapezoidal chambers in the Sistematica, Carol, Mihai and Unirea mines. In total, a volume of over 5.5 million m3 of rock salt was extracted from the Old Mines. This article presents, in summary, the study of surface displacement measurements and the prediction of the ground surface subsidence above the Old Mines. Also, the main factors that contributed to the deformation of the ground surface are described, namely: the dimensions of the underground cavities, the mining depth, the geomechanical characteristics, the tectonics of the deposit, the hydrogeology, the mining method and the explosives detonation effect. [ABSTRACT FROM AUTHOR] |
