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›› 2015, Vol. 32 ›› Issue (5): 644-651.DOI: 10.7523/j.issn.2095-6134.2015.05.010

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

LIU Xuyao, HU Caibo, SHI Yaolin   

  1. Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences, College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2015-02-16 Revised:2015-03-16 Online:2015-09-15

Abstract:

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.

Key words: thermal-elastic effect, thermal infrared anomaly, seismic activity, earthquake precursor, numerical simulation

CLC Number: