陡倾顺层断裂带黄土–泥岩边坡动力响应振动台试验研究

doi:10.13722/j.cnki.jrme.2018.0719

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Abstract Taking a typical loess-mudstone landslide in Tianshui city of Gansu Province as a prototype，using the conceptual model of the loess-mudstone slope with an 80°dip angle bedding fault zone and inputting different seismic waves with different peak accelerations，the shaking table test with a size similarity of 1∶20 was designed and completed. Based on the shaking table test and numerical simulation，the seismic dynamic responses and failure modes of loess-mudstone slopes with a steep dip bedding fault zone were revealed. The results show that the dynamic response of acceleration reflects an obvious surface effect and the amplification effect at the fault zone is greater than that of both side strata of the fault zone. The peak acceleration a = 0.3 g is the critical point of seismic responses of slopes，and the acceleration amplification effect at the hanging wall，the vertical and horizontal earth pressure responses are different while the peak acceleration is less or greater than 0.3 g. When the peak acceleration is less than or equal to 0.3 g，the amplification effect at the hanging wall is not obvious，the vertical earth pressure response is positively correlated with the thickness of the overburden strata，and the horizontal earth pressure response is strongest at the slope shoulder and has a decrease trend at fault zone. When the peak acceleration is greater than 0.3 g，the amplification effect at the hanging wall is very obvious，the vertical earth pressure response is controlled by both the fault zone and the thickness of the overburden strata，and the horizontal earth pressure response is strongest at the slope foot. The failure of loess-mud slopes with a steep dip bedding fault zone under the action of seismic waves is a shock slip failure mode and the width of the fracture distribution area in the loess-mud slope induced by seismic waves on the hanging wall is 1.5 times that of the footwall of the fault zone，which indicates that the slope with a steep dip fault zone has a certain amplification effect on the hanging wall of the fault zone.

Key words： slope engineering fault zone loess-mudstone slopes shaking table test numerical simulation dynamic response failure characteristics

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	Articles by authors
	JIA Xiangning1
	HUANG Qiangbing1
	2
	WANG Tao3
	ZHANG Ning1
	JIANG Zikan1

Cite this article:

JIA Xiangning1,HUANG Qiangbing1,2, et al. Shaking table test of dynamic responses of loess-mudstone slopes with a steep dip bedding fault zone[J]. , 2018, 37(12): 2721-2732.

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2018.0719 OR http://www.rockmech.org/EN/Y2018/V37/I12/2721

[3]	辛鸿博，王余庆. 岩土边坡地震崩滑及其初判准则[J]. 岩土工程学报，1999，21(5)：591-594.(XIN Hongbo，WANG Yuqing. Earthquake-induced landslide and avalanche[J]. Chinese Journal of Geotechnical Engineering，1999，21(5)：591-594.(in Chinese))
[10]	NEWMARK N M. Effects of earthquakes on dams and embankments[J]. Geotechnique，1965，15(2)：139-160.
[8]	王家鼎，白铭学，肖树芳. 强震作用下低角度黄土斜坡滑移的复合机制研究[J]. 岩土工程学报，2001，23(4)：445-449.(WANG Jiading，BAI Mingxue，XIAO Shufang. A study on compound mechanism of earthquake-related sliding displacements on gently inclined loess slope[J]. Chinese Journal of Geotechnical Engineering，2001，23(4)：445-449.(in Chinese))
[17]	王兰民，蒲小武，吴志坚，等. 地震和降雨耦合作用下黄土边坡动力响应的振动台试验研究[J]. 岩土工程学报， 2018，40(7)：1 287- 1 293.(WANG Lanming，PU Xiaowu，WU Zhijian，et al. Shaking table tests of dynamic response of loess slopes under the coupling effects of earthquakes and rainfalls[J]. Chinese Journal of Geotechnical Engineering， 2018，40(7)：1 287-1 293.(in Chinese))
[5]	胡广韬. 滑坡动力学[M]. 北京：地质出版社，1995：37-40.(HU Guangtao. Landslide dynamics[M]. Beijing：Geological Publishing House，1995：37-40.( in Chinese))
[14]	ROMEO R. Seismically induced landslide displacements：a predictive model[J]. Engineering Geology，2000，58(3/4)：337-351.
[2]	殷志强，陈红旗，褚宏亮，等. 2008年以来中国5次典型地震事件诱发地质灾害主控因素分析[J]. 地学前缘，2013，20(6)：289-302.(YIN Zhiqiang，CHEN Hongqi，CHU Hongliang，et al. Analysis on the key controlling factors of geo-hazards triggered by five typical earthquake events in China since 2008[J]. Earth Science Frontiers，2013，20(6)：289-302.(in Chinese))
[7]	王家鼎，张倬元. 地震诱发高速黄土滑坡的机制研究[J]. 岩土工程学报，1999，21(6)：669-674.(WANG Jiading，ZHANG Zhuoyuan. A study on the mechanism of high-speed loess landslide induced by earthquake[J]. Chinese Journal of Geotechnical Engineering，1999，21(6)：669-674.(in Chinese))
[11]	GOODMAN R E，SEED H B. Earthquake-induced displacements in sand embankments[J]. American society of civil engineers，Journal of the Soil Mechanics and FoundationDivision，1966，92(SM2)：125-146.
[16]	徐光兴，姚令侃，李朝红，等. 边坡地震动力响应规律及地震动参数影响研究[J]. 岩土工程学报，2008，30(6)：918-923.(XU Guangxing，YAO Lingkan，LI Zhaohong，et al. Dynamic response of slopes under earthquakes and influence of ground motion parameters[J]. Chinese Journal of Geotechnical Engineering，2008，30(6)：918-923.(in Chinese))
[20]	张帅. 天水地区地震滑坡机制研究[硕士学位论文][D]. 北京：中国地质大学，2016.(ZHANG Shuai. Research on the formation mechanism of large landslides triggered by earthquakes in Tianshui area[M. S. Thesis][D]. Beijing：China University of Geosciences，2016.(in Chinese))
[9]	刘忠玉，慕青松. 饱和黄土边坡的动力失稳机制研究[J]. 岩土工程学报，2005，27(9)：1 016-1 020.(LIU Zhongyu，MU Qingsong. Study on dynamic failure mechanism of saturated loess slopes[J]. Chinese Journal of Geotechnical Engineering，2005，27(9)：1 016-1 020.(in Chinese))
[18]	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))
[1]	国家地震局兰州地震研究所，宁夏地震局. 1920年海原大地震[M]. 北京：地震出版社，1980：108-110.(Lanzhou Earthquake Research Institute of National Earthquake Administration，the Seismological Bureau of Ningxia Autonomous Region of Hui-Minority. 1920 Haiyuan earthquake[M]. Beijing：Earthquake Publishing House，1980：108-110.(in Chinese))
[4]	孙崇绍，蔡红卫. 我国历史地震时滑坡崩塌的发育及分布特征[J]. 自然灾害学报，1997，6(1)：25-30.(SUN Chunshao，CAI Hongwei. Developing and distributing characteristics of collapses and landslides during strong historic earthquake in China[J]. Journal of Natural Disasters，1997，6(1)：25-30.(in Chinese))
[6]	SASSA K，LEE J H. Measurement of the apparent friction angle during motion by the high-speed ring shear apparatus[J]. Landslides，1993，30(1)：1-10.
[12]	WILSON R C，KEEFER D K. Dynamic analysis of a slope failure from the 6 August 1979 CoyoteLake，California，earthquake[J]. Seismological Society of America Bulletin，1983，73(3)：863-877.
[13]	JIBSON R W，KEEFER D K. Analysis of the seismic origin of landslide：Examples from the New Madrid seismic zone[J]. Geological Society of America Bulletin，1993，105(4)：521-536.
[15]	叶海林，郑颖人，杜修力，等. 边坡动力破坏特征的振动台模型试验与数值分析[J]. 土木工程学报，2012，45(9)：128-135.(YE Hailin，ZHENG Yingren，DU Xiuli，et al. Shaking table model test and numerical analysis on dynamic failure characteristics of slope[J]. China Civil Engineering Journal，2012，45(9)：128-135.(in Chinese))
[19]	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))
[21]	张延杰，王旭，梁庆国，等. 湿陷性黄土模型试验相似材料的研制[J]. 岩石力学与工程学报，2013，32(增2)：4 019- 4 024.(ZHANG Yanjie，WANG Xu，LIANG qingguo，et al. Development of model test similar material of collapsible loess[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(Supp.2)：4 019-4 024.(in Chinese))