АНАЛИЗ УСТОЙЧИВОСТИ МНОГОСТУПЕНЧАТЫХ ЛЕССОВЫХ СКЛОНОВ НА ОСНОВЕ ПСЕВДОДИНАМИЧЕСКОГО МЕТОДА Stability analysis of multi-stage loess slopes based on the pseudo-dynamic method

Tao Xue, Shuaihua Ye, Xinzhuang Cui, Jingbang Li, Jun Zhang

Аннотация


Основываясь на теории предельного равновесия, с использованием псевдодинамического метода получено выражение для коэффициента устойчивости многоступенчатых лессовых склонов, учитывающее соотношения геометрических параметров ступеней и эффект усиления сотрясения грунта. Результаты анализа параметров трехступенчатых лессовых склонов показывают, что коэффициенты устойчивости склонов в сейсмическом интервале времени, полученные псевдодинамическим методом, демонстрируют простое гармоническое изменение, а результаты расчетов несколько выше, чем при псевдостатическом методе. Геометрические параметры оказывают существенное влияние на устойчивость склонов. При одинаковой высоте снижение скорости подъема, увеличение
ширины платформы или количества ступеней склона могут повысить общую устойчивость.

Полный текст статьи публикуется в английской версии журнала
«Soil Mechanics and Foundation Engineering”, vol.63, No.1


Литература


W. F. Chen and M. W. Giger, “Limit analysis of stability of slopes,” J. Soil Mech. Found. Div. ASCE, 97(1), 19-26 (1971).

D. Loukidis, P. Bandini, and R. Salgado, “Stability of seismically loaded slopes using limit analysis,” Geotechnique, 53(5), 463-479 (2003).

C. S. Chen, Y. Y. Xia, and V. M. Bowa, “Slope stability analysis by polar slice method in rotational failure mechanism,” Comput. Geotech., 81, 188-194 (2017).

J. H. Zhong and X. L. Yang, “Pseudo-dynamic stability of rock slope considering Hoek-Brown strength criterion,” Acta Geotech., 17, 2481-2494 (2022).

A. Pain, D. Choudhury, and S. K. Bhattacharyya. “Seismic rotational stability of gravity retaining walls by modified pseudo-dynamic method,” Soil Dyn. Earthq. Eng., 94, 244-253 (2017).

J. P. Sun, T. T. Yu, and P. T. Dong, “Three-dimensional soil slope dynamic stability assessment using minimum potential energy approach,” Soil Dyn. Earthq. Eng., 168, 107837 (2023).

G. X. Shao, T. Z. Sun, T. Li, and P. Xu, “Seismic stability analysis of slopes using a pseudo-dynamic method combined with an upper bound method,” Soil Mech. Found. Eng., 60, 79-85 (2023).

J. F. Zhou and C. B. Qin, “Finite-element upper-bound analysis of seismic slope stability considering pseudo-dynamic approach,” Comput. Geotech., 122, 103530 (2020).

N. Chanda, “Seismic stability analysis of slope assuming log-spiral rupture surface using modified pseudo-dynamic method,” Int. J. Geotech. Eng., 15, 160-170 (2021).

M. J. Yan, Y. Y. Xia, T. T. Liu, and V. M. Bowa, “Limit analysis under seismic conditions of a slope reinforced with prestressed anchor cables,” Comput. Geotech., 108, 226-233 (2019).

A. P. Huang, Y. P. Zhu, and S. H. Ye, “Seismic Stability Limit Analysis of Unsaturated Soil Slopes Reinforced by Frame Beam Anchor Plates,” K. J. Civ. Eng., 27, 3778-3792 (2023).

X. L. Yang and J. J. Wei, “Seismic stability for reinforced 3D slope in unsaturated soils with pseudo-dynamic approach,” Comput. Geotech., 134, 104124 (2021).

G. H. Chen, J. F. Zou, T. Yang, and H. Y. Shi, “Three-dimensional modified pseudo-dynamic analysis of reinforced slopes with inclined soil nails,” B. Eng. Geol. Environ., 81, 377 (2022).

S. H. Ye, Z. F. Zhao, and Y. P. Zhu, “Experimental study of the shaking table test and dynamic response of the loess slope reinforced by frame anchors,” Soil Mech. Found. Eng., 59, 272-280 (2022).

S. H. Ye, Z. F. Zhao, and Y. P. Zhu, “Large-scale shaking table experiment of loess slope supported by frame anchors (in Chinese),” Rock Soil Mech., 40(11), 4240-4248 (2019).

S. H. Ye, T. Xue, W. Y. Zhang. “Multi-stage slope displacement analysis based on real-time dynamic Newmark slider method,” Soil Dyn. Earthq. Eng., 174, 108209 (2023).

S. H. Ye and R. H. Zhang, “Stability analysis of multistage loess slope under earthquake action based on the pseudo-static method,” Soil Mech. Found. Eng., 60(4), 304-313 (2023).

T. Xue, S. H. Ye, and C. M. Cao, “Permanent Displacement Analysis of Multistage Loess Slopes with Multiple Slip Surfaces Based on Energy Methods,” Int. J. Geomech., 23 (11), 04023192 (2023).

H. C. Wu, M. J. Sun, and J. N. Wang. “Stability assessment of multi-stage slopes considering local failure,” Front. Earth. Sci., 10, 798791 (2022).

K. B. Yang, Y. P. Zhu, and L. P. Wu. “Analysis on Deformation Failure and Structural Mechanical Characteristics of Multistage Loess Slope Supported by Frame Structure with Anchors,” Adv. Civ. Eng., 4158265 (2022).

X. B. Zhang, X. Zhang, and S. H. Ye, “Calculation for permanent displacement of single slip surface of multi-stage loess slope based on energy method,” Appl. Sci.-Basel, 12(17), 8426 (2022).

P. Sarangi and P. Ghosh, “Seismic analysis of nailed vertical excavation using pseudo-dynamic approach,” Earthq. Eng. Eng. Vib., 15, 621-631 (2016).


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