岩石摩擦滑动的声发射b值

THE B VALUE OF ACOUSTIC EMISSION IN FRICTIONAL SLIDING OF ROCKS

摘要:

用双剪法进行岩石摩擦实验并测定了声发射b值。实验表明,粘滑发生前b值稳定并稍有增加,多次粘滑过程中b值基本不变,随着正应力的增加b值增加。

Abstract:

The frictional experiments of rocks are made and the b value of acoustic emission is measured. The experiments show that the b value is stable and increases a little before stick-slip; but the b value keeps constant stick-slip and the b value increases with the increasing of the normal stress.