| 断层滑移扰动下不同辐射区岩体响应特征 |
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| 引用本文： | 兰明,张楚璇,李向阳,洪昌寿.断层滑移扰动下不同辐射区岩体响应特征[J].南华大学学报(自然科学版),2020,34(6):36-42. |
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| 作者姓名： | 兰明 张楚璇 李向阳 洪昌寿 |
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| 作者单位： | 南华大学 资源环境与安全工程学院,湖南 衡阳421001;南华大学 湖南省退役铀尾矿库退役治理工程技术研究中心,湖南 衡阳421001;中南大学 资源与安全工程学院,湖南 长沙410083;南华大学 资源环境与安全工程学院,湖南 衡阳421001;南华大学 资源环境与安全工程学院,湖南 衡阳421001;南华大学 湖南省退役铀尾矿库退役治理工程技术研究中心,湖南 衡阳421001 |
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| 基金项目： | 国家自然科学基金面上项目(11875164);湖南省教育厅重点研究项目(19A425);湖南省自然科学基金青年项目(2019JJ50489);湖南省教育厅重点研究项目(18A232) |
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| 摘 要： | 为了研究不同应力波辐射区岩体稳定性,引入Haskell有限震源模型,采用修正Yoffe函数计算特定震动矩下断层滑移速度曲线,构建了等效断层滑移型震源,进而利用数值仿真手段,对P波、S波辐射区在断层滑移作用下岩体响应特征进行模拟。结果表明,断层滑移的时间效应对P波、S波辐射区的质点震动强度影响较大。在超过距离震源中心1倍处,质点在S波辐射区的质点峰值速度Vppv(peak particle velocity)值要明显高于P波辐射区的PPV值,但位移量及获得的应变能则相对较小。
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| 关 键 词： | 断层滑移 震源模拟 辐射方式 响应特征 |
| 收稿时间： | 2020/8/24 0:00:00 |
Response Characteristics of Rock Mass in Different Radiation Zones Under Disturbance of Fault Slip |
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| LAN Ming,ZHANG Chuxuan,LI Xiangyang,HONG Changshou.Response Characteristics of Rock Mass in Different Radiation Zones Under Disturbance of Fault Slip[J].Journal of Nanhua University:Science and Technology,2020,34(6):36-42. |
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| Authors: | LAN Ming ZHANG Chuxuan LI Xiangyang HONG Changshou |
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| Institution: | School of Resource Environment and Safety Engineering,University of South China,Hengyang, Hunan 421001,China;Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment,University of South China,Hengyang,Hunan 421001,China;School of Resources and Safety Engineering,Central South University,Changsha,Hunan 410083,China |
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| Abstract: | In order to study the stability of rock masses in different stress wave radiation zones,the Haskell finite seismic source model was introduced,the modified Yoffe function was used to calculate the fault slip velocity curve under a certain vibration moment,accordingly,an equivalent fault-slip seismic source was constructed.Furthermore,numerical simulation methods were applied to simulate the response characteristics of the rock mass under the action of fault slip in the radiation zones of P wave and S wave.The results showed that the time effect of fault slip had apparent impact on the particle vibration intensity in the radiation zones of P wave and S wave.More than one time from the epicenter,the PPV value of the particle in the S-wave radiation zone was significantly higher than that in the P-wave radiation zone,however,the displacement and strain energy obtained were relatively small. |
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| Keywords: | fault slip seismic source simulation radiation pattern response characteristic |
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