Laboratory experiments on relation between pore pressure changeand acoustic (microseismic) emission

The laboratory setup (the cell, Fig.1) consisted of long stainless steel rod (1060 mm in length) with rectangular cross-section (117 × 82.5 mm). A channel with rectangular cross-section (65 × 62.5 mm) was milled

in the rod. The channel was covered by a thick rectangular steel lid; a rubber diaphragm was placed between the rod and the lid.