NATURAL STRESS FIELD IN ROCK MASS AND DEFORMATION ANALYSIS
V. E. Mirenkov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Rock, rock mass, point, ground surface, excavation, analysis, principal stresses
Abstract
It is shown that there is no such a model as intact rock mass, there is only a first one-dimensional approximation, i.e. experimental determination of principal stresses at the point of a future underground excavation. The case of ground surface above rock mass with an underground excavation affecting natural stresses is considered. In transition from open-pit to underground mining, the obtained results are essential when considering only correct problems which are the theoretical background for any calculation.
|
