New procedure for active earth pressure calculation in retaining walls with reinforced cohesive-frictional backfill

Ahmadabadi, Mojtaba; Ghanbari, Ali

doi:10.1016/j.geotexmem.2009.06.004

Cited by 38 publications

(17 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Historically, Coulomb pioneered the investigation of lateral earth pressure on the retaining wall by assuming a plane failure surface under limit equilibrium conditions (Coulomb 1776). Various developments rooted in Coulomb earth pressure theory have been reported considering more general ground and loading conditions, for examples in recent years, surcharge loading (Motta 1994;Greco 2005), seismic effects (Wang et al 2008a;Ahmad 2013;Brandenberg et al 2015), cohesive-frictional backfill (Ahmadabadi and Ghanbari 2009;Chen 2014;Xu 2015), and different slip surfaces (Li and Liu 2010;Ouyang et al 2013;Patki et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Active earth pressure acting on retaining wall considering anisotropic seepage effect

Yang

Wilkinson

2017

J. Mt. Sci.

View full text Add to dashboard Cite

This paper presents a general solution for active earth pressure acting on a vertical retaining wall with a drainage system along the soil-structure interface. The backfill has a horizontal surface and is composed of cohesionless and fully saturated sand with anisotropic permeability along the vertical and horizontal directions. The extremely unfavourable seepage flow on the back of the retaining wall due to heavy rainfall or other causes will dramatically increase the active earth pressure acting on the retaining walls, increasing the probability of instability. In this paper, an analytical solution to the Laplace differential governing equation is presented for seepage problems considering anisotropic permeability based on Fourier series expansion method. A good correlation is observed between this and the seepage forces along a planar surface generated via finite element analysis. The active earth pressure is calculated using Coulomb's earth pressure theory based on the calculated pore water pressures. The obtained solutions can be degenerated into Coulomb's formula when no seepage exists in the backfill. A parametric study on the influence of the degree of anisotropy in seepage flow on the distribution of active earth pressure behind the wall is conducted by varying ratios of permeability coefficients in the vertical and horizontal directions, showing that anisotropic seepage flow has a prominent impact on active earth pressure distribution. Other factors such as effective internal friction angle of soils and soil/wall friction conditions are also considered.

show abstract

Section: Introductionmentioning

confidence: 99%

Active earth pressure acting on retaining wall considering anisotropic seepage effect

Yang

Wilkinson

2017

J. Mt. Sci.

View full text Add to dashboard Cite

show abstract

“…In recent decades, several experimental and numerical investigations have been carried out to determine the effective parameters in GRS walls (Fishman et al, 1993;Palmeira and Gomes, 1996;Ho and Rowe, 1996;Tatsuoka et al, 1997a,b;Rowe and Ho, 1998;Garg, 1998;Ling et al, 2000;Rowe and Skinner, 2001;Koerner and Soong, 2001;Yoo, 2004;Kazimierowicz-Frankowska, 2005;Bathurst et al, 2005;Benjamim et al, 2007;Hatami and Witthoeft, 2008;Yoo and Kim, 2008;Liu and Won, 2009;Yang et al, 2009;Ahmadabadi and Ghanbari, 2009;Liu, 2012). However, despite these extensive investigations, the effect of compaction has been rarely considered.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effect of compaction on the behavior of geosynthetic-reinforced soil walls

Ehrlich

Mirmoradi

Saramago

2012

Geotextiles and Geomembranes

View full text Add to dashboard Cite

“…Ghanbari and Taheri [23] calculated the pressure on wall and reinforced force with the effect of surcharge on reinforced soil walls, under the assumption of Ahmadabadi and Ghanbari [24]. The results for changes in the angle of failure wedge with the size of the surcharge suggest that increasing the amount of surcharge will result in an increase in the angle of failure wedge; however, by changing the distance of the surcharge from the wall, the angle of failure wedge does not change any more.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

Design Diagrams for the Analysis of Active Pressure on Retaining Walls with the Effect of Line Surcharge

Ahmadabadi

Faghirizadeh

2017

Advances in Civil Engineering

View full text Add to dashboard Cite

In this study, a formulation has been proposed to calculate the pressure on wall and determine the angle of failure wedge based on limit equilibrium method. The mentioned formulation is capable of calculating active pressure coefficient, culmination of forces in failure surface, and pressure distribution on wall with the effect of line surcharge. In addition, based on the proposed method, a simple formula has been proposed to calculate the angle of failure wedge by the effect of surcharge. Moreover, the proposed approach has the advantage of taking into account the effect of surcharge on elastoplastic environment by considering the parameters of soil and determining the extent to which the surcharge is effective in pressure distribution on the wall. However, in most previous methods and specifications, resultant lateral pressure from surcharge in elastic environment had been considered. Finally, based on the obtained results, the design diagrams for different soils and different surcharges have been proposed. According to these diagrams, pressure on wall, pressure distribution on wall, and angle of failure wedge will easily be achieved. Also, a computer program has been written in MATLAB software environment. Using the results of these codes, the pressure on wall with the effect of surcharge, the angle of failure wedge, and pressure distribution on wall will be determined.

show abstract

New procedure for active earth pressure calculation in retaining walls with reinforced cohesive-frictional backfill

Cited by 38 publications

References 39 publications

Active earth pressure acting on retaining wall considering anisotropic seepage effect

Active earth pressure acting on retaining wall considering anisotropic seepage effect

Evaluation of the effect of compaction on the behavior of geosynthetic-reinforced soil walls

Design Diagrams for the Analysis of Active Pressure on Retaining Walls with the Effect of Line Surcharge

Contact Info

Product

Resources

About