Authors: O.Ye. Khomenko, M.M. Kononenko

 

Technique of physical modeling of maximum permissible stresses around the extraction cameras by means of equivalent materials has been described. Character of deformation of model round fundamental mining cameras taking into account an adjunction of drilling orts is presented. The basic areas of deformation and cracking of the massif around cameras have been established. Results of the massif model destruction was set when researching of mining cameras depth location. It has been established, that the increase in cameras depth location leads to increase of the massif model deformation in hanging and lying sides, and also at the inclined bottom towards hanging wall from cameras. Empirical dependences between the size of deformation and the mining cameras depth location have been revealed.

2010_06 Hom
2012-12-14  217.34 KB  1348

Tags: physical modeling • equivalent material • chamber model • deformation size • depth of location