| 应力扰动对断层摩擦声发射活动影响的实验研究 |
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| 引用本文： | 马胜利,缪阿丽,黄元敏.应力扰动对断层摩擦声发射活动影响的实验研究[J].西北地震学报,2011,33(1):1-8,19. |
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| 作者姓名： | 马胜利 缪阿丽 黄元敏 |
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| 作者单位： | 1. 中国地震局地质研究所地震动力学国家重点实验室,北京,100029
2. 中国地震局地质研究所地震动力学国家重点实验室,北京,100029;广东省地震局,广东,广州,510070 |
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| 基金项目： | 国家科技支撑项目，国际合作重点项目，国家重点基础研究发展计划项目 |
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| 摘 要： | 利用中尺度岩石摩擦实验开展了应力扰动对断层摩擦滑动过程中声发射活动影响的实验研究,据此讨论同震应力变化引起的小震活动特征及其预测意义.实验结果表明方波状应力扰动对粘滑失稳前的声发射活动有明显影响,即触发了一些声发射事件,使得粘滑发生前声发射活动增强并使出现的时间提前.这种影响随平均正应力的提高和扰动振幅的增大而增强,其...
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| 关 键 词： | 摩擦实验 粘滑 应力扰动 声发射 地震活动 |
Effect of Stress Perturbation on Acoustic Emission during Fault Friction: An Experimental Study |
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| MA?Sheng-li,MIAO?A-li and HUANG?Yuan-min.Effect of Stress Perturbation on Acoustic Emission during Fault Friction: An Experimental Study[J].Northwestern Seismological Journal,2011,33(1):1-8,19. |
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| Authors: | MA?Sheng-li MIAO?A-li and HUANG?Yuan-min |
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| Institution: | MA Sheng-li1,MIAO A-li1,HUANG Yuan-min1,2(1.State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beijing 100029,China,2.Earthquake Administration of Guangdong Province,Guangzhou 510070,China) |
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| Abstract: | Effects of stress perturbation on acoustic emission(AE) during fault friction are studied by using medium-scale experiments of rock friction,and the characteristics of seismicity caused by coseismic stress change and its implication in earthquake forecasting are discussed based on the experimental results.The experiments indicate that stress perturbation of square wave can obviously affect AE activity,it can trigger some AE events so that AE activity before stick-slip becomes stronger and occurs earlier.The... |
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| Keywords: | Frictional experiment Stick-slip Stress perturbation Acoustic emission Seismicity |
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