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本文用不同种类不同尺度的岩芯模拟了不同性质的障碍体,在单轴压力下研究了多个不同障碍体分布在岩石介质上不同位置时的性质和作用,探讨了多个障碍体对地震破裂扩展面的影响。实验结果表明,岩石介质的破裂过程与多个障碍体的排列组合形式有关,当几个障碍体在岩石介质的中轴线上直排列时,在动力轴方向上,位置靠后面的障碍体不易发生破坏;而几个障碍体在岩石介质的最大剪切面上排列时,障碍体较易发生破坏;障碍体在岩石介质上呈品字排列时,易使破裂应力分支,使个别障碍体不受影响。本文同时讨论了多个障碍体与某些复杂地震现象及地震序列类型的关系。
In this paper, different types of cores with different scales are used to simulate different kinds of obstacles. The properties and functions of several different obstacles in different positions on rock media are studied under uniaxial pressure. The effects of multiple obstacles on the earthquakes The effect of rupture expansion. The experimental results show that the rupture process of rock media is related to the arrangement and combination of multiple obstacles. When several obstacles are aligned on the central axis of rock media, the obstacles in the back of the momentum axis are not prone to occur When several obstacles are arranged on the largest shear plane of rock medium, the obstacles are more prone to damage. When the obstacles are arranged in the letters on the rock medium, the cracking stress is easily branched and the individual obstacles are not affected influences. This paper also discusses the relationship between multiple obstacles and some complex seismic phenomena and seismic sequence types.