声发射技术在岩石力学领域中的应用

Application of Acoustic Emission Techniques in Rock Mechanics

声发射技术在采矿工程、石油工程、土木工程、工程地质和岩石性质基础研究中得到越来越多的应用.作者对压头压人时岩石破碎与声发射参数之间的关系作了初步研究.试验结果表明,声发射图象能够反映岩石压人破碎机理,并且岩石压人硬度与声发射信号峰值平均幅度及积分平均幅度有明显的相关关系.

Abstract Application of acoustic emission techniques in mining engineering, petroleum engineering, civil engineering, engineering geology and basic study of rock properties is increasingly expanded. A preliminary study was made by author on the relationship between rock fragmentation and acoustic emission parameters during the process of indentation. The results of experiments indicate that AE signature may reflect the mechanism of rock indentation, and the indentation hardness of rocks is obviously correlated with the peak KMS and integral RMS of acoustic emission signals.