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地震微破裂成核过程的实验模拟研究
EXPERIMENTAL SIMULATION STUDY OF MICRO-FRACTURE NUCLEATION PROCESS
【摘要】 以透明试件受压破裂过程模拟均匀岩体的破裂过程 ,用实时全息干涉摄影系统记录试件应力场分布及其变化 ,用瞬态波形自动记录仪记录微破裂的位置和强度 .通过两种方式所获数据来探索地震微破裂成核过程与应力场关系 .
【Abstract】 The fracture process of transparent samples are used in this paper to simulate that of a homogeneous rock mass. In order to discover relationships between the micro_fracture nucleation and its surrounding stress field, a real_time holographic optical setup is used to record the distribution and variations of the samples’ stress fields and the transient wave_form automatic recorder is used to record the location and intensity of the micro_fractures. The initial research has brought about some phenomena worthy of notice. This method has provided us with a new approach to make a seismic experimental research.
【Key words】 real_time holography; seismic wave; micro_fracture; stress (strain) field.;
- 【文献出处】 地球科学 , 编辑部邮箱 ,2000年03期
- 【分类号】P315
- 【被引频次】11
- 【下载频次】87