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为探究浸水时间对饱水岩石纵波波速的影响规律,对天然状态、饱水状态及浸水时间分别为1,7,14,30,60d和90d的饱水闪长岩和饱水灰岩岩样进行纵波波速测试,试验结果表明:浸水时间对饱水闪长岩和饱水灰岩纵波波速的影响规律基本一致,即浸水时间不长(1~14d)时,纵波波速随浸水时间的增加其值降低幅度较大;浸水时间较长(14~60d)时,纵波波速随浸水时间的增加其值降低幅度逐渐较小;浸水时间超过60d后,纵波波速趋于稳定。
In order to explore the effect of immersion time on the longitudinal wave velocity of saturated rock, the rock samples of saturated diorite and saturated limestone in natural state, saturated state and immersion time were respectively 1,7,14,30,60 d and 90 d The experimental results show that the influence of immersion time on the longitudinal wave velocity of saturated diorite and saturated anhydrite is basically the same, that is, when the immersion time is not long (1 ~ 14d), the longitudinal wave velocity increases with the immersion time The value of longitudinal wave velocity decreases gradually with the increase of immersion time when the immersion time is longer (14 ~ 60d); the wave velocity tends to be stable when the immersion time exceeds 60d.