CAJ | 학술논문

采用TAW-2000D微机控制电液伺服岩石三轴试验机和SDAES型数字声发射仪组成的动态测试系统，对云南大红山铜矿白云岩进行了单轴压缩条件下的声发射试验，研究岩石在峰值应力前后声发射特性。试验结果表明：加载早期就有声发射活动，岩样在试验接近峰值强度时单位时间内的应力增长速度减小、声发射事件率出现明显下降，即出现相对平静期，峰值强度后的声发射现象仍然明显。
채용TAW-2000D미궤공제전액사복암석삼축시험궤화SDAES형수자성발사의조성적동태측시계통，대운남대홍산동광백운암진행료단축압축조건하적성발사시험，연구암석재봉치응력전후성발사특성。시험결과표명：가재조기취유성발사활동，암양재시험접근봉치강도시단위시간내적응력증장속도감소、성발사사건솔출현명현하강，즉출현상대평정기，봉치강도후적성발사현상잉연명현。
This paper uses the TAW-2000D computer to control the dynamic testing system consisting of servo triaxial testing machine and SDAES digital acoustic emission analyzer, conducts the acoustic emission test of the Yunnan Dahongshan copper mine dolomite under the uniaxial compression condition, and studies the acoustic emission characteristics of rock before and after reaching the peak stress. The results show that:there is acoustic emission activity in the early loading period, the per unit time stress growth rate of rock sample decreases when the test near peak intensity, acoustic emission rate decreases significantly, namely appears the relatively quiet period, and the acoustic emission phenomenon is still evident after the peak intensity.