| 微震振源激振模型及振动周期与震级的关系 |
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| 引用本文： | 丁红旗,李国臻,贾宝新.微震振源激振模型及振动周期与震级的关系[J].辽宁工程技术大学学报(自然科学版),2009,28(3). |
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| 作者姓名： | 丁红旗 李国臻 贾宝新 |
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| 作者单位： | 辽宁工程技术大学理学院,辽宁,阜新,123000 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了研究矿山微震的振动周期和振动周期与震级的关系,通过微震激振模型的建立,推导出顶板离层微震发生的振动周期与断裂尺度的关系,振动周期与岩体的物理密度和弹性模量有关,同时决定于裂纹的尺度和约束条件.根据矿山微震不同于地震的特点,通过现场测试数据建立了振幅计算近震震级ML、持续时间计算震级Md,特别是通过微震振源激振模型推导出了周期计算震级MT的公式,这三种方法都是测定微震震级大小的标度,由于周期计算的震级不受距离衰减、吸收衰减及微震波辐射方向性的影响,对记录限幅的情况颇为有效,所以在微震震级测定上有很大的应用价值.
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| 关 键 词： | 冲击地压 微震 震级 激振模型 振动周期 持续时间震级 顶板离层 |
The microseism source excitation model and the relation between the magnitude and vibration cycle |
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| DING Hongqi,LI Guazhen,JIA Baoxin.The microseism source excitation model and the relation between the magnitude and vibration cycle[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(3). |
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| Authors: | DING Hongqi LI Guazhen JIA Baoxin |
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| Institution: | College of Science Liaoning Technical University;Fuxin 123000;China |
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| Abstract: | In order to study vibration cycle of mine microseism and the relationship between the magnitude and vibration cycle.Through the establishment of the microseism excitation model derived relationship of the between break size and vibration cycle of roof-off-strata, vibration cycle is related with the rock mass physics density and elasticity module, at the same time, decided to crack size and boundary conditions.According to the different from the vibration waveform of mine microseism with the earthquake. The ... |
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| Keywords: | rockburst microseism magnitude excitation model vibration cycle duration magnitude roof-off-strata |
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