地震破裂过程的几何学与运动学特征的模拟

本应用形变破裂和激光全息光弹实验，结合断裂力学的观点研究了地震破裂过程的三个方面：１．地震破裂的力学机制；２．地震破裂的应变特征与运动过程；３．地震破裂过程的应力场分布特征。并分析了地震破裂过程的几何学与运动学特征以及探讨了它们与地震发生。前兆和余震迁移的密切关系。此项研究为活动断层分段研究和地震预报提供了实验证据。

SIMULATION OF GEOMETRIC AND KINEMATIC CHARACTERISTICS ON EARTHQUAKE RUPTURE PROCESS

Geometric and Kinematic characteristics on earthquake rupture process are analysed by deformation breaking test and laser holographic photoelasticity combinig with the theory of fracture mechanics in this paper.1.mecnanism or seismic rupture;2.strain features and kinematic process on seismic rupture;3.stress field distribution on seismic rupture.We have also explored the relations between earthquake,precursor,aftershock migration and above features which provide experimental evidences for section study of active fault and earthquake prediction.