花山岩画开裂岩体声波测试与分析

Sonic wave measurement and analysis of rock cracking on Huashan rock paintings

阐述了声波测试的方法和过程,通过在岩体中声波的传播速度,建立开裂岩体厚度与劣化程度的数学模型。结果表明,开裂岩体厚度小于30 mm时,强度损失较大;开裂岩体厚度大于30 mm时,强度基本保持不变,为今后花山岩画的保护提供科学可靠的理论依据。

Acoustic test method and process are discussed in this paper. Through the speed of propagation of acoustic wave in rock mass, the authors established the mathematical model for the thickness of cracking rock mass and the degree of degradation. The results show that, where the thickness of cracking rock mass is less than 30 mm, the strength loss is relatively big; where the thickness of cracking rock mass is greater than 30mm, the strength is essentially unchanged. These data provide reliable scientific theoretical basis for the protection of Huashan rock paintings in the future.