层状复合岩体边坡动力特性及地震响应特性的振动台试验研究

doi:10.13722/j.cnki.jrme.2020.0772

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (2473 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A layered complex rock slope always consists of complex lithology and rock structure，and its seismic responses and landslide formation mechanisms are not completely understood. In the present study，a small-scale shaking table test was carried out on a layered complex rock slope model，taking a typical landslide triggered by the 2008“5·12”Wenchuan earthquake as the prototype slope，simulating the original topography and rock strata and using the accelerations recorded at the seismic station adjacent to the landslide area as input waves. Based on the sensor measurements，the natural frequencies and acceleration responses of the model slope were analyzed，and the horizontal and vertical responses were compared. In addition，the acceleration and displacement responses of the weak layer in the model slope，namely carbonaceous slate，were analyzed to emphasize the role of the layer in the whole slope¢s responses. The main results show that the model slope demonstrates different vibration modes under horizontal and vertical excitations，and the natural frequencies for both directions undergo three-phase decreasing process which indicates a gradual deterioration of the slope structure. The topographic amplification effect of the vertical acceleration of the model slope is weaker than that of the horizontal acceleration. However，the model slope shows a more significant modification effect on the vertical input waves，and the carbonaceous slate plays a weakening effect of the vertical acceleration. Bulging deformation was observed on the surface of the carbonaceous slate under a high level of excitation. At the stage of the destructive test，the peak horizontal displacement in the carbonaceous slate is larger than that in the overlying phyllite slate. However，the incompatible deformation among different strata does not cause the model slope to slide along the carbonaceous slate，which is inconsistent with the actual location of the sliding surface of the prototype landslide. Nonetheless，the above results，especially the differential responses between the horizontal and vertical accelerations and between different strata，can still help to explain the failure mechanism of a layered complex rock slope triggered by an earthquake.

Key words： slope engineering layered complex rock slope shaking table test dynamic property acceleration response displacement response

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIU Hanxiang
	ZHOU Yifei
	LI Xin

Cite this article:

LIU Hanxiang,ZHOU Yifei,LI Xin. Shaking table test of dynamic responses of a layered complex rock slope under earthquake[J]. , 2021, 40(4): 676-689.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0772 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I4/676

[1] 许强，裴向军，黄润秋，等. 汶川地震大型滑坡研究[M]. 科学出版社，2015.(XU Qiang，PEI Xiangjun，HUANG Runqiu，et al. Large-scale landslides induced by the Wenchuan earthquake[M]. Science press，2015.(in Chinese))
[2] 裴向军，黄润秋，崔圣华，杜野，等. 大光包滑坡岩体碎裂特征及其工程地质意义[J]. 岩石力学与工程学报，2015，34(增1)：3 106–3 115.(PEI Xiangjun，HUANG Runqiu，CUI Shenghua，et al. The rock mass cataclastic characteristics of Daguangbao landslide and its engineering geological significance[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：3 106–3 115. (in Chinese))
[3] 罗璟，裴向军，黄润秋，等. 强震作用下滑坡岩体震裂损伤程度影响因素研究[J]. 岩土工程学报，2015，37(6)：1 105–1 114. (LUO Jing，PEI Xiangjun，HUANG Runqiu，et al. Influencing factors for damage degree of shattered landslide rock mass under high seismic action[J]. Chinese Journal of Geotechnical Engineering，2015，37(6)：1 105–1 114.(in Chinese))
[4] 黄润秋，裴向军，崔圣华. 大光包滑坡滑带岩体碎裂特征及其形成机制研究[J]. 岩石力学与工程学报，2016，35(1)：1–14. (HUANG Runqiu，PEI Xiangjun，CUI Shenghua. Cataclastic characteristics and formation mechanism of rock mass in sliding zone of Daguangbao landslide[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(1)：1–14.(in Chinese))
[5] 裴向军，崔圣华，黄润秋. 大光包滑坡启动机制：强震过程滑带动力扩容与水击效应[J]. 岩石力学与工程学报，2018，37(2)：430–448.(PEI Xiangjun，CUI Shenghua，HUANG Runqiu. A model of initiation of Daguangbao landslide：dynamic dilation and water hammer in sliding zone during strong seismic shaking[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(2)：430–448.(in Chinese))
[6] 崔圣华，裴向军，黄润秋. 大光包滑坡启动机制：强震过程滑带非协调变形与岩体动力致损[J]. 岩石力学与工程学报，2019，38(2)：430–448.(CUI Shenghua，PEI Xiangjun，HUANG Runqiu. An initiation model of DGB landslide：non-coordinated deformation inducing rock damage in sliding zone during strong seismic shaking[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(2)：430–448.(in Chinese))
[7] ZHANG Y B，WANG J M，XU Q，et al. DDA validation of the mobility of earthquake-induced landslides[J]. Engineering Geology，2015，194：38–51.
[8] YUAN R M，TANG C L，DENG Q H. Effect of the acceleration component normal to the sliding surface on earthquake-induced landslide triggering[J]. Landslides，2015，12：335–344.
[9] ZHOU J W，CUI P，YANG X G. Dynamic process analysis for the initiation and movement of the Donghekou landslide-debris flow triggered by the Wenchuan earthquake[J]. Journal of Asian Earth Sciences，2013，76：70–84.
[10] 孙萍，殷跃平，吴树仁，等. 东河口滑坡岩石微观结构及力学性质试验研究[J]. 岩石力学与工程学报，2009，29(增1)：2 872–2 878.(SUN Ping，YIN Yueping，WU Shuren，et al. Experimental study of microstructure and mechanical properties of rocks from Donghekou Landslide[J]. Chinese Journal of Rock Mechanics and Engineering，2009，29(Supp.1)：2 872–2 878.(in Chinese))
[11] 孙萍，殷跃平，吴树仁，等. 四川省青川县东河口滑坡岩石的抗剪断性质试验[J]. 地质通报，2009，28(8)：1 163–1 167.(SUN Ping，YIN Yueping，WU Shuren，et al. Experimental study on shear strength of rocks from Donghekou landslide in Qingchuan County，Sichuan Province，China[J]. Geological Bulletin of China，2009，28(8)：1 163–1 167.(in Chinese))
[12] 孙萍，汪发武，殷跃平，等. 汶川地震高速远程滑坡机制实验研究[J]. 地震地质，2010，(1)：98–106.(SUN Ping，WANG Fawu，YIN Yueping，et al. An experimental study on the mechanism of rapid and long run-out landslide triggered by Wenchuan earthquake[J]. Seismology and Geology，2010，(1)：98–106.(in Chinese))
[13] 李秀珍，孔纪名，邓红艳，等. “5·12“汶川地震滑坡特征及失稳破坏模式分析[J]. 四川大学学报：工程科学版，2009，41(3)：72–77.(LI Xiuzhen，KONG Jiming，DENG Hongyan，et al. Analysis on characteristics and deformation failure mode of large-scale landslides induced by“5·12”Wenchuan earthquake[J]. Journal of Sichuan University：Engineering Science，2009，41(3)：72–77.(in Chinese))
[14] 梁庆国，韩文峰，马润勇，等. 强地震动作用下层状岩体破坏的物理模拟研究[J]. 岩土力学，2005，26(8)：1 307–1 311.(LIANG Qingguo，HAN Wenfeng，MA Runyong，et al. Physical simulation study on dynamic failures of layered rock masses under strong ground motion[J]. Rock and Soil Mechanics，2005，26(8)：1 307–1 311.(in Chinese))
[15] 董金玉，杨国香，伍法权，等. 地震作用下顺层岩质斜坡动力响应和破坏模式大型振动台试验研究[J]. 岩土力学，2011，32(10)：2 977–2 983.(DONG Jinyu，YANG Guoxiang，WU Faquan，et al. The large-scale shaking table test study of dynamic response and failure mode of bedding rock slope under earthquake[J]. Rock and Soil Mechanics，2011，32(10)：2 977–2 983. (in Chinese))
[16] 杨国香，伍法权，董金玉，等. 地震作用下岩质边坡动力响应特性及变形破坏机制研究[J]. 岩石力学与工程学报，2012，31(4)：696–702.(YANG Guoxiang，WU Faquan，DONG Jinyu，et al. Study of dynamic responses characteristics and failure mechanism of rock slope under earthquake[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(4)：696–702.(in Chinese))
[17] FAN G，ZHANG J J，WU J B，et al. Dynamic response and dynamic failure mode of a weak intercalated rock slope using a shaking table[J]. Rock Mechanics and Rock Engineering，2016，49：3 243–3 256.
[18] ARNOLD L，WARTMAN J，MASSEY C，et al. Insights into the seismically-induced rock-slope failures in the Canterbury Region using the discrete element method[C]// Proceedings of the 6th International Conference on Earthquake Geotechnical Engineering. Christchurch，New Zealand：[s. n.]. 2015：1–4.
[19] GISCHIG V S，EBERHARDT E，MOORE J R，et al. On the seismic response of deep-seated rock slope instabilities-Insights from numerical modeling[J]. Engineering Geology，2015，193：1–18.
[20] 许强，刘汉香，邹威，等. 斜坡加速度动力响应特性的大型振动台试验研究[J]. 岩石力学与工程学报，2010，29(12)：2 420–2 428. (XU Qiang，LIU Hanxiang，ZOU Wei，et al. Study on slope dynamic responses of accelerations by large-scale shaking table test[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(12)：2 420–2 428.(in Chinese))
[21] 刘汉香，许强，侯红娟. 岩性及岩体结构对地震作用下斜坡加速度响应规律的影响[J]. 岩土力学，2013，34(9)：2 482–2 488. (LIU Hanxiang，XU Qiang，HOU Hongjuan. Influence of lithology and discontinuity on slope acceleration responses under an earthquake[J]. Rock and Soil Mechanics，2013，34(9)：2 482–2 488.(in Chinese))
[22] 刘汉香，许强，周飞，等. 含软弱夹层斜坡地震动力响应特性的振动台试验研究[J]. 岩石力学与工程学报，2015，34(5)：994–1 005.(LIU Hanxiang，XU Qiang，ZHOU Fei，et al. Shaking table test for seismic responses of slopes with a weak interlayer [J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(5)：994–1 005.(in Chinese))
[23] 蒋良潍，姚令侃，吴伟，等. 传递函数分析在边坡振动台模型试验的应用探讨[J]. 岩土力学，2010，31(5)：1 368–1 374.(JIANG Liangwei，YAO Lingkan，WU Wei，et al. Transfer function analysis of earthquake simulation shaking table model test of side slopes[J]. Rock and Soil Mechanics，2010，31(5)：1 368–1 374.(in Chinese))
[24] 范留明，闫娜，李宁. 薄弹性软弱夹层的动力响应模型[J]. 岩石力学与工程学报，2006，25(1)：88–92.(FAN Liuming，YAN Na，LI Ning. Dynamic response model for thin soft interlayer considering interbedded reflecting waves[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(1)：88–92.(in Chinese))
[25] 张奇. 应力波在节理处的传递过程[J]. 岩土工程学报，1986，8(6)：99–105.(ZHANG Qi. The propagation of stress wave across a rock joint[J]. Chinese Journal of Geotechnical Engineering，1986，8(6)：99–105.(in Chinese))
[26] 王芳其，李亚勇，吕志涛，等. SH波入射时软弱夹层的减震特性及影响因素分析[J]. 防灾减灾工程学报，2016，36(1)：31–37. (WANG Fangqi，LI Yayong，LV Zhitao，et al. Vibration attention performance of soft interlayer under incident SH waves and influential factors[J]. Journal of Disaster Prevention and Mitigation Engineering，2016，36(1)：31–37.(in Chinese))