Abstract
Rocks often have certain bedding structures under long-term geological conditions, which leads to different performances. In this paper, ultrasonic analysis of horizontal bedding and vertical bedding is carried out by high temperature tests on anisotropic red sandstone samples to obtain data on mass, density, porosity and longitudinal wave velocity as a function of temperature. Then through the apparent morphology analysis of the sample, data processing and image analysis, the high temperature damage law of the anisotropic sandstone is finally obtained, which provides theoretical support for underground resource development and underground engineering construction.
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