实时高温作用下砂岩的热损伤与能量特征

作者：Anjie Liao, Yan Zhang, Fei Wang, Yu Ma · 发表于：Earth Science-Journal of China University of Geosciences · 年份：2025 · DOI：10.3799/dqkx.2023.206 · 被引用次数：3 · 研究领域：Rock Mechanics and Modeling

The damage and energy evolution characteristics of rocks under real-time high temperature are hot and difficult issues in deep geological engineering.MTS815 program-controlled servo rigid testing machine and PCI-II acoustic emission instrument were used for triaxial compression tests of sandstone under real-time high temperatures in this study, and the mechanical and energy characteristics of sandstone under high temperature were analyzed and discussed based on the test results and introducing the law of energy consumption evolution.The results show that: (1) There is a temperature threshold between 120 ℃ and 150 ℃ , which leads to thermal damage inside sandstone, and its peak strength is greatly reduced, and the macroscopic failure 基金项目：