The influenes of triaxial stress states on the elastic wave velocities of clayey sandstone,and claystone and hard siliceous sandstone have been determined by experiments.

• 岩石所受的三向应力状态对其弹性波传播性质有一定的影响，此认识为所做的以泥质砂岩、泥岩和硅质胶结的坚硬砂岩为试样的实验所证实。