基于实验数据的岩石变形过程中温度场演化的数值模拟  

Numerical simulation of temperature evolution during rock deformation process based on experimental data

作　　者：刘旭耀[1] 胡才博[1] 石耀霖[1] 

机构地区：[1]中国科学院大学地球科学学院中国科学院计算地球动力学重点实验室,北京100049

出　　处：《中国科学院大学学报（中英文）》2015年第5期644-651,共8页Journal of University of Chinese Academy of Sciences

基　　金：国家自然科学基金(41474085);中国科学院大学校长基金(Y35101EY00)资助

摘　　要：根据相关岩石力学实验数据,对岩石变形过程中温度场演化进行有限元数值模拟,探讨线弹性变形条件下,均匀岩石模型和含雁列构造岩石模型在加载情况下的弹性热效应.模拟结果与实验结果和经典热力学理论相当吻合,为进一步研究热红外异常与地震活动性之间的关联提供了理论依据.More and more researchers focus on the relationship between satellite infrared anomaly and seismic activity. Some researchers did some rock experiments to observe the thermal evolution of rock specimen during loading and deformation. The results for the rock experiments match well with the classical thermodynamics theory. Based on the experimental data,we used finite element model to simulate temperature evolution of the rock specimen during the loading process. Thermal-elastic effect of both homogeneous specimen and heterogeneous specimen with en-echelon cracks is simulated under the elastic loading condition. The simulated results are well consistent with the data of experiments and thermodynamics theory. This study may provide a theoretic foundation for the relationship between satellite infrared anomaly and seismic activity.

关 键 词：弹性热效应 热红外异常 地震活动性 临震异常 数值模拟 

分 类 号：P315.7[天文地球—地震学]