Active earth pressure on non-yielding retaining walls with geofoam blocks and granular backfills

Stability problem of gravity retaining wall structure was researched, and a simplified formula of the active earth pressure Ea was turned out for the convenience of the program design. The anti-slide safety factor K0 and anti-overturning safety factor Kc were derived based on different positions of slip plane of retaining wall. This work is the basis of the reliability calculating and program design, for these formulas must be used in anti-slide and anti-overturning safety failure mode in program compiling. On the basis of the known parameters such as wall type, wall dimensions, material parameters, external load, and so on, the program can automatically calculate K0 and Kc, their corresponding failure probability Pf and reliability index β can easily be calculated in later analysis. The research content provide a convenient calculation method, which is used to calculate the Ea and K0 and Kc and Pf and β of the actual retaining walls engineering.

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New Approach for Active Earth Pressure Calculation on Rigid Retaining Walls with Cohesive Backfill

Soil Mechanics and Foundation Engineering ◽

10.1007/s11204-020-09668-x ◽

2020 ◽

Vol 57 (4) ◽

pp. 288-295

Author(s):

Yi Tang ◽

Jiangong Chen

Keyword(s):

Earth Pressure ◽

Retaining Walls ◽

Active Earth Pressure ◽

New Approach ◽

Pressure Calculation

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Discussion of “ Active Earth Pressure Behind Retaining Walls ” by Sangchul Bang (March, 1985, Vol. 111, No. 3)

Journal of Geotechnical Engineering ◽

10.1061/(asce)0733-9410(1987)113:8(932) ◽

1987 ◽

Vol 113 (8) ◽

pp. 932-933

Author(s):

D. R. Phatak ◽

Vistasp M. Karbhari ◽

Anil S. Paranjpe

Keyword(s):

Earth Pressure ◽

Retaining Walls ◽

Active Earth Pressure

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Effect of Wall Inclination on Dynamic Active Thrust for Cohesive Soil Backfill

Journal of Civil Engineering Science and Technology ◽

10.33736/jcest.992.2018 ◽

2018 ◽

Vol 9 (2) ◽

pp. 6 ◽

Cited By ~ 1

Author(s):

A. Gupta ◽

V. Yadav ◽

V. A. Sawant ◽

R. Agarwal

Keyword(s):

Retaining Wall ◽

Earth Pressure ◽

Cohesive Soil ◽

Retaining Walls ◽

Wall Friction ◽

Cohesionless Soil ◽

Active Earth Pressure ◽

Seismic Active Earth Pressure ◽

Design Charts ◽

Seismic Loadings

Design of retaining walls under seismic conditions is based on the calculation of seismic earth pressurebehind the wall. To calculate the seismic active earth pressure behind the vertical retaining wall, many researchers reportanalytical solutions using the pseudo-static approach for both cohesionless and cohesive soil backfill. Design charts havebeen presented for the calculation of seismic active earth pressure behind vertical retaining walls in the non-dimensionalform. For inclined retaining walls, the analytical solutions for the calculation of seismic active earth pressure as well as thedesign charts (in non-dimensional form) have been reported in few studies for c-ϕ soil backfill. One analytical solution forthe calculation of seismic active earth pressure behind inclined retaining walls by Shukla (2015) is used in the present studyto obtain the design charts in non-dimensional form. Different field parameters related with wall geometry, seismic loadings,tension cracks, soil backfill properties, surcharge and wall friction are used in the present analysis. The present study hasquantified the effect of negative and positive wall inclination as well as the effect of soil cohesion (c), angle of shearingresistance (ϕ), surcharge loading (q) and the horizontal and vertical seismic coefficient (kh and kv) on seismic active earthpressure with the help of design charts for c-ϕ soil backfill. The design charts presented here in non-dimensional form aresimple to use and can be implemented by field engineers for design of inclined retaining walls under seismic conditions. Theactive earth pressure coefficients for cohesionless soil backfill achieved from the present study are validated with studiesreported in the literature.

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