Shaking table tests on topographic effects of circular-arc valleys

ZHANG Zhongjie; YU Haitao; SONG Yi; LIU Shu; WANG Zhikun

doi:10.11779/CJGE20221586

Volume 46 Issue 5

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Chinese Journal of Geotechnical Engineering > 2024 > 46(5): 1102-1111. > DOI: 10.11779/CJGE20221586

ZHANG Zhongjie, YU Haitao, SONG Yi, LIU Shu, WANG Zhikun. Shaking table tests on topographic effects of circular-arc valleys[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(5): 1102-1111. DOI: 10.11779/CJGE20221586

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Shaking table tests on topographic effects of circular-arc valleys

1.
Shanghai Urban Construction Design & Research Institute, Shanghai 200125, China
2.
Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China
3.
College of Civil Engineering, Tongji University, Shanghai 200092, China

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Received Date: December 29, 2022
Available Online: June 24, 2023

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Abstract

Abstract

As a typical locally irregular topography, the valley can change the seismic properties within the local site, which is usually called the topographic effects. This phenomenon has been confirmed by numerous ground shaking observations and earthquake damage records. However, the current knowledge on the site effects of the valley is focused on analytical or numerical methods, lacking the experimental data from physical models. In this study, a free-field shaking table model test method considering the valley effects is established, and a series of shaking table tests on the topographic effects of valleys are carried out. Three sets of circular-arc valley topographies with depth-to-width ratios of 1/8, 1/4 and 1/3 are designed, and the free-field tests under the flat field are used as a reference to compare the topographic effects of the valley site, and the effects of different topographic conditions on the valley effects are investigated. The results show that the valley effects cause the amplification of the ground acceleration response at the local site, and the amplification effects are most significant at the valley top, while the acceleration response within the valley gradually increases from the valley bottom to the valley top. The ground acceleration amplification effects caused by the valley topography are more significant with the increase in the incident frequency. The amplification effects of the valley topography gradually increase with the increase of depth-to-width ratio. The research results can provide a scientific basis for the seismic safety analysis of structures around valleys.
- shaking table test,
- circular-arc valley,
- topographic effect,
- acceleration response

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References

[1]	高玉峰, 代登辉, 张宁. 河谷地形地震放大效应研究进展与展望[J]. 防灾减灾工程学报, 2021, 41(4): 734-752. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXK202104007.htm GAO Yufeng, DAI Denghui, ZHANG Ning. Progress and prospect of topographic amplification effects of seismic wave in canyon sites[J]. Journal of Disaster Prevention and Mitigation Engineering, 2021, 41(4): 734-752. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DZXK202104007.htm
[2]	TRIFUNAC M, HUDSON D E. Analysis of the Pacoima Dam accelerogram—San Fernando, California, earthquake of 1971[J]. Bulletin of the Seismological Society of America, 1971, 61: 1393-1411.
[3]	BOORE D M. The effect of simple topography on seismic waves: implications for the accelerations recorded at Pacoima Dam, San Fernando Valley, California[J]. Bulletin of the Seismological Society of America, 1973, 63(5): 1603-1609. doi: 10.1785/BSSA0630051603
[4]	张建毅, 薄景山, 王振宇, 等. 汶川地震局部地形对地震动的影响[J]. 自然灾害学报, 2012, 21(3): 164-169. https://www.cnki.com.cn/Article/CJFDTOTAL-ZRZH201203024.htm ZHANG Jianyi, BO Jingshan, WANG Zhenyu, et al. Influence of local topography on seismic ground motion in Wenchuan earthquake[J]. Journal of Natural Disasters, 2012, 21(3): 164-169. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZRZH201203024.htm
[5]	李平, 刘红帅, 薄景山, 等. 汶川M_S8.0地震河谷地形对汉源县城高烈度异常的影响[J]. 地球物理学报, 2016, 59(1): 174-184. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201601015.htm LI Ping, LIU Hongshuai, BO Jingshan, et al. Effects of river valley topography on anomalously high intensity in the Hanyuan town during the Wenchuan M_S8.0 earthquake[J]. Chinese Journal of Geophysics, 2016, 59(1): 174-184. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DQWX201601015.htm
[6]	TRIFUNAC M D. Scattering of plane SH-waves by a semi-cylindrical canyon[J]. Earthquake Engineering & Structural Dynamics, 1972, 1(3): 267-281.
[7]	GAO Y, ZHANG N, LI D, et al. Effects of topographic amplification induced by a U-shaped canyon on seismic waves[J]. Bulletin of the Seismological Society of America, 2012, 102(4): 1748-1763. doi: 10.1785/0120110306
[8]	ZHANG N, GAO Y F, LI D Y, et al. Scattering of SH waves induced by a symmetrical V-shaped canyon: a unified analytical solution[J]. Earthquake Engineering and Engineering Vibration, 2012, 11(4): 445-460. doi: 10.1007/s11803-012-0135-z
[9]	CAO H, LEE V W. Scattering and differaction of plane P waves by circular cylindrical canyons with variable depth-to-width ratio[J]. Soil Dynamics and Earthquake Engineering, 1990, 9(3): 141-150. doi: 10.1016/S0267-7261(09)90013-6
[10]	LEE V W, CAO H. Diffraction of SV waves by circular canyons of various depths[J]. Journal of Engineering Mechanics, 1989, 115(9): 2035-2056. doi: 10.1061/(ASCE)0733-9399(1989)115:9(2035)
[11]	GELAGOTI F, KOURKOULIS R, ANASTASOPOULOS I, et al. Seismic wave propagation in a very soft alluvial valley: sensitivity to ground-motion details and soil nonlinearity, and generation of a parasitic vertical component[J]. Bulletin of the Seismological Society of America, 2010, 100(6): 3035-3054. doi: 10.1785/0120100002
[12]	刘中宪, 张征, 王少杰, 等. 基于快速多极子间接边界元法的城市区域沉积盆地三维地震响应宽频模拟[J]. 岩土力学, 2019, 40(10): 4101-4110. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201910046.htm LIU Zhongxian, ZHANG Zheng, WANG Shaojie, et al. 3D seismic response broadband-simulation of the alluvial basin in urban region based on the FMM-IBEM[J]. Rock and Soil Mechanics, 2019, 40(10): 4101-4110. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201910046.htm
[13]	赵飞, 俞松波, 李博, 等. 地震作用下岩质边坡大型振动台试验研究进展[J]. 地球科学, 2022, 47(12): 4498-4512. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX202212013.htm ZHAO Fei, YU Songbo, LI Bo, et al. Research advances on large-scale shaking table test for rock slopes under earthquake[J]. Earth Science, 2022, 47(12): 4498-4512. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX202212013.htm
[14]	李平, 张宇东, 薄涛, 等. 基于离心机振动台试验的梯形河谷场地地震动效应研究[J]. 岩土力学, 2020, 41(4): 1270-1278, 1286. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202004018.htm LI Ping, ZHANG Yudong, BO Tao, et al. Study on ground motion effect of trapezoidal valley site based on centrifuge shaking table test[J]. Rock and Soil Mechanics, 2020, 41(4): 1270-1278, 1286. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202004018.htm
[15]	ZHANG S, YUAN Y, YANG Y, et al. Dynamic performance of soil-tunnel system under transverse sinusoidal excitations[J]. Applied Sciences, 2021, 11(11): 5097. doi: 10.3390/app11115097
[16]	WOOD D M, CREWE A, TAYLOR C. Shaking table testing of geotechnical models[J]. International Journal of Physical Modelling in Geotechnics, 2002, 2(1): 1-13. doi: 10.1680/ijpmg.2002.020101
[17]	KRAMER S L. Geotechnical Earthquake Engineering[M]. Upper Saddle River: Prentice Hall, 1996.