SIMULATED IMPACT-TYPE ROCK BURST EXPERIMENT APPARATUS

摘要

A simulated impact-type rock burst experiment apparatus, comprising a machine frame (100), a specimen box assembly, a loading mechanism arranged on the x-axis direction of the machine frame (100), a loading mechanism arranged on the y-axis direction, a loading mechanism arranged on the z-axis direction, and a control system. The loading mechanisms of each of the directions comprise: four support columns (11, 21, and 31) arranged as a rectangle, first framepieces (12, 22, and 32) and second framepieces (13, 23, and 33) oppositely arranged and respectively fixed onto respective two ends of the four support columns, a loading hydraulic cylinder (14, 24, and 34) and a bolt (15, 25, and 35) respectively arranged upon each framepiece. The apparatus is capable of loading a static stress and a disturbance load onto a rock sample piece from three directions perpendicular to each other in a three-dimensional space, and can be used in a simulated impact-type rock burst experiment; also, the three sets of loading mechanisms have roughly identical structures, provide great symmetry, and allow for improved easiness and precision in terms of operation and control of loading the static stress or disturbance load onto the rock sample piece in the three directions.