Experimental research on critical point hypothesis
  • 万方数据
    地震学报（英文版） 지진학보（영문판）
    ACTA SEISMOLOGICA SINICA
    2004年 z1期 129-137 ,共9页

    余怀忠%尹祥础%夏蒙棼%许昭永%李敏%梁乃刚%彭克银%Victor Kukshenko%吴智深%李琦%Surguei Elizarov

    여부충%윤상출%하몽분%허소영%리민%량내강%팽극은%Victor Kukshenko%오지심%리기%Surguei Elizarov



    critical point hypothesis%accelerating energy release%acoustic emission%earthquake prediction


    According to the critical point hypothesis (CPH), energy release would accelerate in power law before occurrenceof large earthquakes or failure of brittle materials. In the paper, CPH was studied by acoustic emission experimentsof large-scale rock samples. Three kinds of rock samples were used in the experiments. The tri-axial loading condition was applied under different loading histories. The released elastic energy (Acoustic emission) was recordedwith acoustic emission technique as microcracks emerged and developed inside the rock samples. The experimental results gave a further verification on the CPH. The elastic energy release of rock samples would accelerate before the failure even under different experimental conditions. Primary studies were also made on medium-termearthquake prediction by using accelerating energy release (AER) in the paper.
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