Journal ArticleDOI
Seismic active earth pressure on walls using a new pseudo-dynamic approach.
TLDR
In this article, a new pseudo-dynamic approach based on standing shear and primary waves propagating on a visco-elastic backfill overlying rigid bedrock subjected to both harmonic horizontal and vertical acceleration is presented.Abstract:
Seismic active soil thrust, soil pressure distribution and overturning moment are obtained in closed form using a new pseudo-dynamic approach based on standing shear and primary waves propagating on a visco-elastic backfill overlying rigid bedrock subjected to both harmonic horizontal and vertical acceleration. Seismic waves respect the zero stress boundary condition at the soil surface, backfill is modeled as a Kelvin–Voigt medium and a planar failure surface is assumed in the analysis. Effects of a wide range of parameters such as amplitude of base accelerations, soil shear resistance angle, soil wall friction angle, damping ratio are discussed. Results of the parametric study indicate that amplitude of the horizontal base acceleration and soil shear resistance angle are the factors most influencing active pressure distribution whereas the presence of the vertical acceleration always results in a quite small increase in seismic active thrust. Damping ratio is important mainly close to the fundamental frequency of shear wave where seismic active thrust is maximum. Unlike the original pseudo-dynamic approach the effect of a different frequency for S-wave and P-wave is considered in the analysis. Seismic active thrust is found to increase when the frequency of P-wave is greater than that of S-wave. The results obtained by the proposed approach are found to be in agreement with previous studies, provided that the seismic input is adapted to include amplification effects.read more
Citations
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Journal ArticleDOI
Kinematic analysis of seismic slope stability with a discretisation technique and pseudo-dynamic approach: a new perspective
Changbing Qin,Siau Chen Chian +1 more
TL;DR: In this paper, a combination of pseudo-dynamic approach and discretisation technique is used to estimate slope stability under the ultimate limit state with the aim of generating a potential failure mechanism with discretised points by forward difference point-to-point method.
Journal ArticleDOI
Seismic rotational stability of gravity retaining walls by modified pseudo-dynamic method
Anindya Pain,Anindya Pain,Deepankar Choudhury,Deepankar Choudhury,S. K. Bhattacharyya,S. K. Bhattacharyya +5 more
TL;DR: In this paper, limit equilibrium method is used for rotational stability analysis of gravity retaining wall on rigid foundation supporting dry cohesionless backfill with modified pseudo-dynamic seismic forces.
Journal ArticleDOI
Limit Analysis of Modified Pseudodynamic Lateral Earth Pressure in Anisotropic Frictional Medium Using Finite-Element and Second-Order Cone Programming
Hessam Fathipour,Amirhossein Safardoost Siahmazgi,Meghdad Payan,Mehdi Veiskarami,Reza Jamshidi Chenari +4 more
TL;DR: In this article, the active and passive lateral earth pressures exerted on retaining walls due to the anisotropic medium of dry and non-cohesive backfill subjected to the modifi...
Journal ArticleDOI
Effect of dynamic soil properties and frequency content of harmonic excitation on the internal stability of reinforced soil retaining structure
Anindya Pain,Anindya Pain,Deepankar Choudhury,Deepankar Choudhury,S. K. Bhattacharyya,S. K. Bhattacharyya +5 more
TL;DR: In this paper, the effect of dynamic soil properties and frequency content of harmonic excitation on the internal stability of reinforced soil retaining structure is investigated, and an algorithm is proposed at the end of this paper which uses strain dependent equivalent linear values of shear wave velocity (V s ) and damping ratio ( ξ ) to compute the total reinforcement force and critical length of the reinforcement.
Journal ArticleDOI
Generalized Seismic Active Thrust on a Retaining Wall with Submerged Backfill Using a Modified Pseudodynamic Method
TL;DR: In this paper, closed-form generalized solutions for computing seismic active earth thrust and its distribution on nonvertical rigid retaining walls with fully submerged backfill are proposed using the modified pseudodynamic approach.
References
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Book
Geotechnical Earthquake Engineering
TL;DR: In this paper, the Probleme dynamique Reference Record was created on 2004-09-07, modified on 2016-08-08 and was used as a reference record.
Book
Stress Waves in Solids
TL;DR: A large and growing number of original papers on both the experimental and the theoretical aspects of stress wave propagation is appearing in the scientific literature, and two international conferences solely concerned with the subject have been held during the last five years as mentioned in this paper.
Journal ArticleDOI
The influence of phase on the calculation of pseudo-static earth pressure on a retaining wall
Rss Steedman,Xin Zeng +1 more
TL;DR: In this paper, the authors present an analysis which takes into account a finite shear wave velocity in the backtill, thus allowing for the phase change in a prototype structure.
Book
Principles of Soil Dynamics
TL;DR: In this paper, the fundamental properties of vibration waves in elastic medium properties of dynamically loaded soils foundation vibration Dynamic bearing capacity of shallow foundations Earthquake and ground vibration Lateral earth pressure on retaining walls Compressibility of soils under dynamic loads Liquefaction of soil Machine foundation on piles Seismic stability of earth embankments
Journal ArticleDOI
Seismic passive resistance by pseudo-dynamic method
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The influence of phase on the calculation of pseudo-static earth pressure on a retaining wall
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