Crushing tests of brittle rock(granite) under different dynamic and static loads are conducted on multi-functional static-dynamic coupling loading testing apparatus. The acoustic emission system AEwin is applied to collect the acoustic emission data in the rock crushing process. Based on the measured data, the relationship between total acoustic emission energy and rock crushing volume under different loading patterns is analyzed. The rock crushing volume and rock-breaking specific energy are used as parameters which can characterize the rock breaking effect to synthetically analyse the effect of rock fragmentation under various kinds of loading patterns. The results show that: (1) There exists a close correlation between the total acoustic emission energy and crushing volume, and the relation of acoustic emission energy per breaking volume under dynamic loading, static loading and static-dynamic coupling loading is WD展开▼
