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excitation signals during rupture of perilous rock． J Vib Shock，2015，34( 8) : 139 ( 陈洪凯，杨铭，唐红梅，等． 危岩破坏激振信号概率统计特 征研究． 振动与冲击，2015，34( 8) : 139) ［16］ Valentin J，Capron A，Jongmans D，et al． The dynamic response of prone-to-fall columns to ambient vibrations: comparison be￾tween measurements and numerical modelling． Geophys J Int， 2017，208( 2) : 1058 ［17］ Stead D，Eberhardt E，Coggan J S． Developments in the charac￾terization of complex rock slope deformation and failure using nu￾merical modelling techniques． Eng Geol，2006，83( 1-3) : 217 ［18］ Chen W，Xu Z M，Liu W L． Mechanical model and failure mechanism of unstable cantilevered rock blocks due to differential weathering． Ｒock Soil Mech，2015，36( 1) : 195 ( 陈维，徐则民，刘文连． 差异风化型危岩力学模型及破坏 机制研究． 岩土力学，2015，36( 1) : 195) ［19］ Farrar C Ｒ，Doebling S W． An overview of modal-based damage identification methods［J/OL］． CiteSeerx Digital Library ( 2018-- 12--21) ［2019--03--27］． http: / /citeseerx． ist． psu． edu /view￾doc / download? doi = 10． 1． 1． 6． 2798＆rep = rep1＆type = pdf ［20］ Benedetti A，Pignagnoli G，Tarozzi M． Damage identification of cracked reinforced concrete beams through frequency shift． Mater Struct，2018，51( 6) : 147 ［21］ Goyal D，Pabla B S． The vibration monitoring methods and signal processing techniques for structural health monitoring: a review． Arch Comput Method E，2016，23( 4) : 585 ［22］ Jiang Y J，Gao Y，Li B，et al． Ｒesearch on health assessment technique of tunnel lining based on power spectrum density char￾acteristics of microtremors． J Jpn Soc Civil Engineers，2012，68 ( 3) : 111 ［23］ Wang L G，Huang Ｒ Q，Zhang Z Y，et al． Dynamic models on the process of landslide hazards． Prog Nat Sci，1998，8 ( 2 ) : 224 ( 王来贵，黄润秋，张倬元，等． 滑坡灾害发生的动力学模 型． 自然科学进展，1998，8( 2) : 224) ［24］ Lin C G． A Study on the Dynamic of Slope Stability at the 921Chi-Chi Earthquake in Taiwan ［Dissertation］． Chongqing: Chongqing University，2003 ( 林成功． 台湾 921 集集大地震滑坡动力分析研究［学位论 文］． 重庆: 重庆大学，2003) ［25］ Zheng L，Chen G Q，Zen K K，et al． Validation of trampoline effect for earthquake induced landslides using numerical analysis． Memoirs Faculty Eng，Kyushu Univ，2011，71( 4) : 127 ［26］ Yin Y P，Wang M，Li B，et al． Dynamic response characteristics of Daguangbao landslide triggered by Wenchuan Earthquake． Chin J Ｒock Mech Eng，2012，31( 10) : 1969 ( 殷跃平，王猛，李滨，等． 汶川地震大光包滑坡动力响应特 征研究． 岩石力学与工程学报，2012，31( 10) : 1969) ［27］ Burjánek J，Gassner-Stamm G，Poggi V，et al． Ambient vibra￾tion analysis of an unstable mountain slope． Geophys J Int，2010， 180( 2) : 820 ［28］ Burjánek J，Moore J Ｒ，Yugsi Molina F X，et al． Instrumental evidence of normal mode rock slope vibration． Geophys J Int， 2012，188( 2) : 559 ［29］ Gao Y，Jiang Y J，Li B． Estimation of effect of voids on frequen￾cy response of mountain tunnel lining based on microtremor meth￾od． Tunnell Undergr Space Technol，2014，42: 184 ［30］ Li H J，Yang H Z． Ｒesearch progress on modal parameter identi￾fication and damage diagnosis for offshore platform structures． Eng Mech，2004，21( Suppl 1) : 116 ( 李华军，杨和振． 海洋平台结构参数识别和损伤诊断技术 的研究进展． 工程力学，2004，21( 增刊 1) : 116) ［31］ Du Y，Xie M W，Jiang Y J，et al． Experimental study on cumu￾lative damage assessment of rock-block using a laser Doppler vi￾brometer． Chin J Eng，2017，39( 1) : 141 ( 杜岩，谢谟文，蒋宇静，等． 应用激光多普勒测振仪的岩块 体累计损伤评价试验研究． 工程科学学报，2017，39 ( 1) : 141) ［32］ Ma G，Sawada K，Saito H，et al． Study on evaluating rock block stability by using a remotely positioned laser Doppler vibrometer． Int J Geomate，2012，2( 2) : 247 ［33］ Qi S W，Wu F Q，Liu C L，et al． Engineering geology analysis on stability of slope under earthquake． Chin J Ｒock Mech Eng， 2004，23( 16) : 2792 ( 祁生文，伍法权，刘春玲，等． 地震边坡稳定性的工程地质 分析． 岩石力学与工程学报，2004，23( 16) : 2792) ［34］ Feng X T，Zhang Z Q，Sheng Q． Estimating mechanical rock mass parameters relating to the Three Gorges Project permanent shiplock using an intelligent displacement back analysis method． Int J Ｒock Mech Min Sci，2000，37( 7) : 1039 ［35］ Wang D Y，Zhu Y L，Zhao S P，et al． Study on experimental determination of the dynamic elastic mechanical parameters of fro￾zen soil by ultrasonic technique． Chin J Geotech Eng，2002，24 ( 5) : 612 ( 王大雁，朱元林，赵淑萍，等． 超声波法测定冻土动弹性力 学参数试验研究． 岩土工程学报，2002，24( 5) : 612) ［36］ Ma G C，Sawada K，Yashima A，et al． Experimental study of the applicability of the remotely positioned laser Doppler vibrome￾ter to Ｒock-Block stability assessment． Ｒock Mech Ｒock Eng， 2015，48( 2) : 787 ［37］ Uehan F，Minoura S． Development of an aerial survey system and numerical analysis modeling software for unstable rock blocks． Q Ｒep ＲTＲI，2015，56( 3) : 212 ［38］ Du Y，Xie M W，Lü F X，et al． New method for dynamic analy￾sis of rock slope stability based on modal parameters． Chin J Geotech Eng，2015，37( 7) : 1334 ( 杜岩，谢谟文，吕夫侠，等． 基于模态参量变化的边坡动态 稳定分析新方法． 岩土工程学报，2015，37( 7) : 1334) ［39］ Du Y，Xie M W，Jiang Y J，et al． Methods of determining warn￾ing indices based on natural frequency monitoring． Ｒock Soil Mech，2015，36( 8) : 2284 ( 杜岩，谢谟文，蒋宇静，等． 基于自振频率的监测预警指标 确定方法． 岩土力学，2015，36( 8) : 2284) · 434 ·