Influence of Different Joint Angles on Elastic P‐wave Velocity Attenuation

Jinxiu Guo ； Jinyu Wang ； Long Cheng

《World Scientific Research Journal》 7卷6期 (2021/06) Pp. 153-158

https://doi.org/10.6911/WSRJ.202106_7(6).0019

摘要

In view of the attenuation phenomenon of elastic wave passing through a joint, the effect of joint strike Angle on the attenuation of elastic longitudinal wave velocity was studied. Considering the anisotropy of rock mass itself, a more reasonable test scheme is designed to explore the attenuation law of wave velocity. The results show that the anisotropy of rock mass leads to the anisotropy of compressional wave velocity, and the difference of wave velocity varies with different lithologies. This factor should be considered when exploring the influence of joint strike Angle on wave velocity attenuation. When this effect is fully taken into account, no matter what the joint Angle is, its existence has a certain damping effect on the elastic longitudinal wave velocity, and the wave velocity decreases linearly with the increase of the joint strike Angle.

關鍵字

Elastic P‐wave ； Jointed rock mass ； Joint angles of strike ； Anisotropic

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