Seismic stability analysis of slope reinforced with a row of piles

Abstract In this paper, the seismic stability of a slope reinforced with a row of piles is analyzed within the framework of the pseudo-static approach. Calculations are conducted by using a technique integrated the kinematic theorem of limit analysis with strength reduction concept. The log-spiral failure surface is considered, analytical expressions are derived that enable one to readily calculate the yield acceleration coefficient for the slope subjected to seismic loading, and the lateral stabilizing force provided by piles which is required to increase the slope safety factor to a design value. Numerical results for typical example are presented and the reasonableness of the procedure is verified. Furthermore, discussions are made in order to illustrate the influence of horizontal seismic coefficients on the lateral stabilizing forces and the optimal position of the pile in seismic area.

[1]  F. Cai,et al.  NUMERICAL ANALYSIS OF THE STABILITY OF A SLOPE REINFORCED WITH PILES , 2000 .

[2]  G. R. Martin,et al.  Soil–structure interaction for landslide stabilizing piles , 2002 .

[3]  Siming He,et al.  Seismic Displacement of Slopes Reinforced with Piles , 2010 .

[4]  Xinpo Li,et al.  Stability Analysis of Slopes Reinforced with Piles Using Limit Analysis Method , 2006 .

[5]  K Arulmoli,et al.  Use of Displacement Piles to Improve Slope Stability at Port of Los Angeles Berth 100 Wharf , 2004 .

[6]  D. V. Griffiths,et al.  SLOPE STABILITY ANALYSIS BY FINITE ELEMENTS , 1999 .

[7]  Takuo Yamagami,et al.  A limit equilibrium stability analysis of slopes with stabilizing piles , 2000 .

[8]  Robert Y. Liang,et al.  Three-dimensional finite element study of arching behavior in slope/drilled shafts system , 2009 .

[9]  J. M. Duncan.  State of the Art: Limit Equilibrium and Finite-Element Analysis of Slopes , 1996 .

[10]  Xinpo Li,et al.  Optimal location of piles in slope stabilization by limit analysis , 2012 .

[11]  Hai‐Sui Yu,et al.  Limit Analysis versus Limit Equilibrium for Slope Stability , 1999 .

[12]  Y. K. Chow,et al.  ANALYSIS OF PILES USED FOR SLOPE STABILIZATION , 1996 .

[13]  Philip E. Gill,et al.  Practical optimization , 1981 .

[14]  Robert Y. Liang,et al.  STABILITY ANALYSIS OF DRILLED SHAFTS REINFORCED SLOPE , 2002 .

[15]  Ernesto Ausilio,et al.  Stability analysis of slopes reinforced with piles , 2001 .

[16]  E. Ellis,et al.  Numerical modelling of discrete pile rows for slope stability and generic guidance for design , 2010 .

[17]  K. Ugai,et al.  A Method of Calculation of Total Safety Factor of Slope by Elasto-Plastic FEM , 1989 .

[18]  Ernesto Ausilio,et al.  Seismic stability analysis of reinforced slopes , 2000 .

[19]  Radoslaw L. Michalowski,et al.  SLOPE STABILITY ANALYSIS: A KINEMATICAL APPROACH , 1995 .

[20]  Zuyu Chen,et al.  Slope stability analysis by the upper bound approach: fundamentals and methods , 1997 .

[21]  R. Lewis,et al.  Associated and non-associated visco-plasticity and plasticity in soil mechanics , 1975 .

[22]  T. Nian,et al.  Limit analysis of the stability of slopes reinforced with piles against landslide in nonhomogeneous and anisotropic soils , 2008 .

[23]  Sang-Seom Jeong,et al.  Uncoupled analysis of stabilizing piles in weathered slopes , 2003 .

[24]  Jian-Hua Yin,et al.  Upper bound limit analysis of slope stability using rigid finite elements and nonlinear programming , 2003 .

[25]  J. Z. Zhu,et al.  The finite element method , 1977 .

[26]  Scott W. Sloan,et al.  Lower bound limit analysis using finite elements and linear programming , 1988 .

[27]  Tamotsu Matsui,et al.  METHODS TO ESTIMATE LATERAL FORCE ACTING ON STABILIZING PILES , 1975 .

[28]  S. Sloan.  Geotechnical stability analysis , 2013 .

[29]  Wai-Fah Chen.  Limit Analysis and Soil Plasticity , 1975 .

[30]  Harry G. Poulos,et al.  SIMPLIFIED PILE-SLOPE STABILITY ANALYSIS , 1995 .

[31]  Tamotsu Matsui,et al.  Design Method for Stabilizing Piles Against Landslide—One Row of Piles , 1981 .

[32]  Rodrigo Salgado,et al.  Stability Analysis of Complex Soil Slopes using Limit Analysis , 2002 .

[33]  Sang-Seom Jeong,et al.  Coupled effects in stability analysis of pile–slope systems , 2005 .

[34]  Harry G. Poulos,et al.  Design of reinforcing piles to increase slope stability , 1995 .

[35]  Rodrigo Salgado,et al.  Stability of seismically loaded slopes using limit analysis , 2003 .

[36]  Wai-Fah Chen,et al.  Seismic Displacements in Slopes by Limit Analysis , 1984 .

[37]  Manjriker Gunaratne,et al.  DESIGN METHOD FOR STABILIZATION OF SLOPES WITH PILES , 1997 .

[38]  Yu-zhen Yu,et al.  Centrifuge modeling of dynamic behavior of pile-reinforced slopes during earthquakes , 2010 .