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Three-dimensional limit analysis of seismic displacement of slope reinforced with piles
Abstract Three-dimensional (3D) limit analysis of seismic stability of slopes reinforced with one row of piles is presented in this paper. A 3D rotational mechanism for earth slope is adopted. The lateral forces provided by the piles are evaluated by the theory of plastic deformation. Expressions for calculating the yield acceleration coefficient are derived. A random iteration method is employed to find the critical acceleration coefficient for the 3D slopes with or without reinforcement. Based on the kinematic theory within the frame of the pseudo-static approach, a 3D model is proposed for evaluating the critical state and the subsequent displacement response. Furthermore, Newmark׳s analytical procedure is employed to estimate the cumulative displacement induced by given earthquake loads. An example is shown to illustrate the influence of the piles on the seismic displacement of the 3D slopes.
Highlights A Three-dimensional (3D) rotational mechanism for earth slope is utilized. Hybrid solution is obtained for the 3D slope reinforced with piles. The random iteration method is used to find the critical failure surface of the 3D slope. The displacement of the 3D slope is calculated under seismic loading. The number of piles needed to stabilize the 3D slope is calculated.
Three-dimensional limit analysis of seismic displacement of slope reinforced with piles
Abstract Three-dimensional (3D) limit analysis of seismic stability of slopes reinforced with one row of piles is presented in this paper. A 3D rotational mechanism for earth slope is adopted. The lateral forces provided by the piles are evaluated by the theory of plastic deformation. Expressions for calculating the yield acceleration coefficient are derived. A random iteration method is employed to find the critical acceleration coefficient for the 3D slopes with or without reinforcement. Based on the kinematic theory within the frame of the pseudo-static approach, a 3D model is proposed for evaluating the critical state and the subsequent displacement response. Furthermore, Newmark׳s analytical procedure is employed to estimate the cumulative displacement induced by given earthquake loads. An example is shown to illustrate the influence of the piles on the seismic displacement of the 3D slopes.
Highlights A Three-dimensional (3D) rotational mechanism for earth slope is utilized. Hybrid solution is obtained for the 3D slope reinforced with piles. The random iteration method is used to find the critical failure surface of the 3D slope. The displacement of the 3D slope is calculated under seismic loading. The number of piles needed to stabilize the 3D slope is calculated.
Three-dimensional limit analysis of seismic displacement of slope reinforced with piles
He, Yi (author) / Hazarika, Hemanta (author) / Yasufuku, Noriyuki (author) / Han, Zheng (author) / Li, Yange (author)
Soil Dynamics and Earthquake Engineering ; 77 ; 446-452
2015-06-25
7 pages
Article (Journal)
Electronic Resource
English
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