Strata Movement at the Shaft

Abstract

Mining causes damage not only at the surface but also to mine structures in the interior of the rock mass. In mine roadways and working areas, it is true, this damage is caused principally by rock pressures which belong in the domain of rock mechanics. At the shaft, however, it is caused solely by the strata movements discussed in the last chapter. The mining subsidence engineer must therefore concern himself also with the kinematics of shaft damage, on which there is already a considerable literature. Protection of the shaft, the prime haulage and ventilation route linking the working levels with the surface installations, is after all of the highest importance to the maintenance of the mine undertaking.