Influence of Topographic and Geomorphic Conditions on the Dynamic Response of Slope Acceleration

TANG Wei-min; MA Shu-zhi; LIU Xiao-lang; ZHAO Xuan

doi:10.11988/ckyyb.20180443

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Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (11) : 98-103. DOI: 10.11988/ckyyb.20180443

ROCK-SOIL ENGINEERING

Influence of Topographic and Geomorphic Conditions on the Dynamic Response of Slope Acceleration

TANG Wei-min¹, MA Shu-zhi², LIU Xiao-lang², ZHAO Xuan²

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Abstract

In this paper, we designed and conducted a set of shaking table model tests of soil slope according to the topographic and geomorphologic conditions of the slope. Based on the results, we examined the influence of the topographic and geomorphologic conditions on the dynamic response of the soil slope and studied the reaction mechanism of slope under earthquakes. Results demonstrated that the dynamic response of soil slope was closely related to the elevation of the slope. The amplification coefficient of peak ground acceleration (PGA) along the slope surface and in the vertical direction of the slope increased with the elevation increasing, and the amplification effect of soil inside the slope to earthquake waves was more significant than that of slope surface in the horizontal direction. The topographic and geomorphologic conditions of the soil slope had great influence on the amplification effect of earthquake waves. Generally, if the slope is steeper and more complex in shape, the amplification coefficient of PGA and the deformation of the slope will be greater.

Key words

soil slope / topographic and geomorphic conditions / shaking table model test / slope shape / dynamic response / PGA amplification coefficient

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TANG Wei-min, MA Shu-zhi, LIU Xiao-lang, ZHAO Xuan. Influence of Topographic and Geomorphic Conditions on the Dynamic Response of Slope Acceleration[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(11): 98-103 https://doi.org/10.11988/ckyyb.20180443

References

[1] 张培震. 中国地震灾害与防灾减灾[J]. 地震地质,2008,30(3):577-583.
[2] 刘红帅,薄景山,刘德东.岩土边坡地震稳定性分析研究评述[J].地震工程与工程振动,2005,25(1):164-171.
[3] 张陈羊,巨能攀,李龙起,等. 离心场中陡倾顺层岩质边坡振动试验关键技术研究[J]. 长江科学院院报,2017,34(9):141-109.
[4] 徐光兴,姚令侃,高召宁. 边坡动力特性与动力响应的大型振动台模型试验研究[J]. 岩石力学与工程学报,2008,27(3):624-632.
[5] 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):2420-2428.
[6] 刘汉香,许强,范宣梅,等. 地震动强度对斜坡加速度动力响应规律的影响[J]. 岩土力学,2012,33(5):1357-1365.
[7] 陈新民,沈建,魏平,等. 下蜀土边坡地震稳定性的大型振动台试验研究(Ⅰ)[J]. 防灾减灾工程学报,2010,30(5):497-502.
[8] 陈新民,沈建,魏平,等. 下蜀土边坡地震稳定性的大型振动台试验研究(Ⅱ)[J]. 防灾减灾工程学报,2010,30(6) :588-594.
[9] SRILATHA N, MADHAVI LATHA G, PUTTAPPA C G. Seismic Response of Soil Slopes in Shaking Table Tests: Effect of Type and Quantity of Reinforcement[J]. International Journal of Geosynthetics and Ground Engineering, 2016, 2 (4):1-13.
[10]王宇,贾洪彪,赵轩,等. 地震作用下均质土坡动力特性的振动台试验研究[J]. 地震工程学报,2017,39(1) :100-106.
[11]蒋良潍,姚令侃,王建. 基于振动性态和破坏相似的边坡振动台模型实验相似律[J]. 交通科学与工程,2009,25(2) :1-7.
[12]《工程地质手册》编委会.工程地质手册[M].5版. 北京:中国建筑工业出版社,2018.