| SV波作用下岩质边坡地震稳定性的时频分析方法研究 |
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| 引用本文： | 杨长卫,张建经,周德培.SV波作用下岩质边坡地震稳定性的时频分析方法研究[J].岩石力学与工程学报,2013,32(3):483-491. |
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| 作者姓名： | 杨长卫 张建经 周德培 |
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| 作者单位： | (西南交通大学 土木工程学院，四川 成都 610031) |
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| 摘 要： | 基于弹性波动理论和概化地质分析模型，利用希伯来–黄(Hilbert-Huang)变换，提出SV波作用下岩质边坡地震稳定性的时频分析方法，并且通过振动台试验和数值分析结果对其合理性进行验证。该方法不仅能够考虑SV波的幅值、频率、持时三要素对边坡地震稳定性的影响，而且能够预测岩质边坡的安全性、滑坡发生的时间和规模，同时也能够为高烈度区支挡结构开展抗震时频设计提供一定的参考。
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| 关 键 词： | 边坡工程 弹性波动理论 希伯来–黄变换 时频分析方法 地震稳定性 |
| 收稿时间： | 2012-05-31; |
RESEARCH ON TIME-FREQUENCY ANALYSIS METHOD FOR SEISMIC STABILITY OF ROCK SLOPE SUBJECTED TO SV WAVE |
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| YANG Changwei,ZHANG Jianjing,ZHOU Depei.RESEARCH ON TIME-FREQUENCY ANALYSIS METHOD FOR SEISMIC STABILITY OF ROCK SLOPE SUBJECTED TO SV WAVE[J].Chinese Journal of Rock Mechanics and Engineering,2013,32(3):483-491. |
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| Authors: | YANG Changwei ZHANG Jianjing ZHOU Depei |
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| Affiliation: | (School of Civil Engineering，Southwest Jiaotong University，Chengdu，Sichuan 610031，China) |
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| Abstract: | Based on the theory of elastic wave and the summarized geological model，a new time-frequency analysis method of the rock slope seismic stability is put forward by using the Hilbert-Huang transform. The rationality of this method has been verified by the results of shaking table test and numerical simulation. This method not only considers the amplitude-time-frequency effects，but also can forecast the safety of the slope，the time occurring the landslide and its scale. At the same time，this method can provide the valuable references for the time-history seismic design of retaining structure in the high intensity earthquake area. |
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| Keywords: | slope engineering theory of elastic wave Hilbert-Huang transform time-frequency analysis method seismic stability |
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