CAJ | 학술논문

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.
기우탄성파동이론화개화지질분석모형,이용희백래–황(Hilbert-Huang)변환,제출SV파작용하암질변파지진은정성적시빈분석방법,병차통과진동태시험화수치분석결과대기합이성진행험증.해방법불부능구고필SV파적폭치、빈솔、지시삼요소대변파지진은정성적영향,이차능구예측암질변파적안전성、활파발생적시간화규모,동시야능구위고열도구지당결구개전항진시빈설계제공일정적삼고.
@@@@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.