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The effects of the temperature and the humidity on the properties of the elastic wave propagation in granite

机译:温度与湿度对花岗岩弹性波传播性能的影响

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In this study, the measurement of the P-wave velocity in granite was conducted under controlled temperature and humidity. Lead-zirconate-titanate (PZT) ceramics were used for sensors that were attached directly on the surface of the rock specimen of 60 mm cube. It was found that P-wave propagation properties were affected by the environmental conditions. The relative humidity had the strong effect on the P-wave velocity. When the temperature was higher than 55 degree centigrade and the relative humidity increased, the P-wave velocity decreased due to the crack growth by stress corrosion. It can be concluded that subcritical crack growth caused by stress corrosion occurs for microcracks due to the thermal stress and the water vapor.
机译:在该研究中,在受控温度和湿度下进行花岗岩中P波速度的测量。铅锆酯 - 钛酸酯(PZT)陶瓷用于直接连接在60mm立方体的岩石样品表面上的传感器。发现P波传播性质受环境条件的影响。相对湿度对P波速度具有很强的影响。当温度高于55度的摄氏度并且相对湿度增加时,P波速度由于压力腐蚀的裂纹增长而降低。可以得出结论,由于热应力和水蒸气而导致由应力腐蚀引起的亚临界裂纹生长。

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