A sensitivity analysis of the modified model showed that the size of the blast-induced damage area is mainly affected by the following factors: rock mass properties, in situ stress, and borehole pressure. In particular, the roles of borehole pressure and in situ stress are discussed. Finally,...
1. A thick cylinder of 150mm inside diameter and 200mm outside diameter is subjected to an internal pressure of 15 MN/m 2 . Determine the value of the maximum hoop stress set up in the cylinder walls (A) A container with a height of 8...