Seismic passive earth pressure coefficients for sands

By taking the failure surface as a combination of the arc of a logarithmic spiral and a straight line, passive earth pressure coefficients in the presence of horizontal pseudostatic earthquake body forces have been computed for an inclined wall placed against cohesionless backfill material. The presence of seismic forces induces a considerable reduction in the passive earth resistance. The reduction increases with an increase in the magnitude of the earthquake acceleration. The effect becomes more predominant for loose sands. The obtained results compared well with those reported in the literature using curved failure surfaces. However, the results available in the literature on the basis of a planar failure surface are found to predict comparatively higher passive resistance.

[1]  Jyant Kumar,et al.  PASSIVE PRESSURE DETERMINATION BY METHOD OF SLICES , 1997 .

[2]  Deepankar Choudhury,et al.  Seismic passive resistance in soils for negative wall friction , 2002 .

[3]  K. Terzaghi.  Theoretical Soil Mechanics , 1943 .

[4]  Trevor G. Davies,et al.  Passive Pressure During Seismic Loading , 1986 .

[5]  Vasily Vasilevic Sokolovski,et al.  Statics of soil media , 1960 .

[6]  Donald H. Shields,et al.  PASSIVE PRESSURE COEFFICIENTS BY METHOD OF SLICES , 1973 .

[7]  Jyant Kumar,et al.  PASSIVE PRESSURE COEFFICIENTS, CRITICAL FAILURE SURFACE AND ITS KINEMATIC ADMISSIBILITY , 1997 .

[8]  Seismic passive earth pressure coefficients using the method of characteristics , 2002 .

[9]  Albert Caquot,et al.  Traité de mécanique des sols , 1966 .

[10]  I. Lee,et al.  A Theoretical Study of the Pressures Acting on a Rigid Wall by a Sloping Earth or Rock Fill , 1972 .

[11]  Jyant Kumar,et al.  Static and seismic passive earth pressure coefficients on rigid retaining structures , 2001 .

[12]  D. Shields,et al.  Passive Pressure Coefficients for Sand , 1972 .

[13]  A Caquot,et al.  Active and Passive Earth Pressure Tables , 1990 .

[14]  Robert M. Ebeling,et al.  Limit equilibrium computation of dynamic passive earth pressure , 1995 .

[15]  Jyant Kumar.  Seismic horizontal pullout capacity of vertical anchors in sands , 2002 .

[16]  D. G. Elms,et al.  Dynamic Fluidization of Soils , 1990 .

[17]  James Graham.  Calculation of Passive Pressure in Sand , 1971 .

[18]  Robert V. Whitman,et al.  Design of Earth Retaining Structures for Dynamic Loads , 1970 .

[19]  W. D. Liam Finn,et al.  Seismic lateral pressures for design of rigid walls , 1999 .