首页|Seismic stability of expansive soil slopes reinforced by anchor cables using a modified horizontal slice method

Seismic stability of expansive soil slopes reinforced by anchor cables using a modified horizontal slice method

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Earthquake-induced slope failures are common occurrences in engineering practice and pre-stressed anchor cables are an effective technique in maintaining slope stability,especially in areas that are prone to earthquakes.Furthermore,the soil at typical engineering sites also exhibit unsaturated features.Explicit considerations of these factors in slope stability estimations are crucial in producing accurate results.In this study,the seismic responses of expansive soil slopes stabilized by anchor cables is studied in the realm of kinematic limit analysis.A modified horizontal slice method is proposed to semi-analytically formulate the energy balance equation.An illustrative slope is studied to demonstrate the influences of suction,seismic excitations and anchor cables on the slope stability.The results indicate that the stabilizing effect of soil suction relates strongly to the seismic excitation and presents a sine shape as the seismic wave propagates.In higher and steeper slopes,the stabilizing effect of suction is more evident.The critical slip surface tends to be much more shallow as the seismic wave approaches the peak and vice versa.

limit analysisexpansive soil slopematric suctionanchor cablepseudo-dynamic analysis

Wang Long、Chen Guoxing、Hu Wei、Zhou Enquan、Feng Jianxue、Huang Anping

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School of Mechnical Engineering,Jiangnan University,Wuxi 214122,China

Institute of Geotechnical Engineering,Nanjing Tech University,Nanjing 211816,China

State Key Laboratory of Geohazard Prevention and Geoenvironmental Protection,Chengdu University of Technology,Chengdu 610059,China

Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang 212013,China

Architectural Engineering College,Guizhou Minzu University,Guiyang 550025,China

School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaOpening Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment ProtectionNatural Science Foundation of Jiangsu ProvinceFundamental Research Funds for the Central Universities

522083455200812452268054SKLGP2022K002BK20210479JUSRP121055

2024

10.1007/s11803-024-2242-z

地震工程与工程振动(英文版)
中国地震局工程力学研究所

地震工程与工程振动(英文版)

EI
影响因子：0.476
ISSN：1671-3664
年,卷(期)：2024.23(2)
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