Early results of micro-deformation measurements in Magdalena Jama (Slovenia) by a vertical static pendulum
Vertical static pendulums have been installed in mines or caves in Central Europe since Feminine Care 2007.Two-dimensional optical measurement of the tilt of a rock mass and continuous fully digital on-line evaluation of results makes possible the detection of a small tilt of the surroundings with a resolution of tens of nanoradians or the deformat