含裂隙饱水风干岩石声发射特征试验研究

Experimental Study on Acoustic Emission Characteristics of Saturated air-dried Rock with Fissure

为研究饱水风干作用后含孔洞-裂隙缺陷试样的声发射特征,对含不同裂隙倾角花岗岩板状试样进行单轴压缩试验,加载过程中对裂隙岩石试样进行声发射特征试验,结果表明:试样轴向应力-应变曲线与声发射活动表现出明显的对应特征,随着次生裂纹的萌生和扩展,声发射活动趋于活跃。

For studying the full water containing hole-fissure defect sample after drying effect of the acoustic emission characteristics,to contain different fissure Angle granite plate specimen under uniaxial compression test,in the process of load characteristics of fractured rock specimen,acoustic emission testing,the results show that the axial stress-strain curve and sample showed obvious corresponding characteristics of acoustic emission activity as the secondary crack initiation and propagation,acoustic emission activities tend to be more active.