Stability Analysis of Retaining Walls with Shelves by Static and Pseudo-Static Method

The study presents a novel approach to overcome the height limitations of traditional cantilever retaining walls by introducing relief shelves which are horizontal reinforced concrete platforms provided at regular intervals along the stem height. A parametric study is carried out by varying unit wei...

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Bibliographic Details
Published in:Transportation infrastructure geotechnology 2024-12, Vol.11 (6), p.4289-4315
Main Authors: Aldonkar, Smita S., Savoikar, Purnanand P.
Format: Article
Language:English
Subjects:
Building Materials
Cantilevers
Civil engineering
Concrete
Concrete structures
Design factors
Earth pressure
Earthquakes
Engineering
Foundations
Friction
Geoengineering
Geotechnical Engineering & Applied Earth Sciences
Geotechnology
Height
Hydraulics
Infrastructure
Pressure distribution
Reinforced concrete
Retaining walls
Safety factors
Seismic activity
Seismic engineering
Shelving
Sliding
Slumping
Soil analysis
Soil improvement
Soil properties
Stability analysis
Structural engineering
Technical Paper
Vertical forces
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Summary:The study presents a novel approach to overcome the height limitations of traditional cantilever retaining walls by introducing relief shelves which are horizontal reinforced concrete platforms provided at regular intervals along the stem height. A parametric study is carried out by varying unit weight, soil friction angle, and number of shelves. It is observed that the provision of shelves improves the factor of safety against sliding and overturning as the earth pressure on the stem is reduced compared to the cantilever retaining wall without shelves. Design charts are presented for shelf lengths for different stem heights and soil properties. The pseudo-static analysis uses the Mononobe-Okabe approach by applying constant horizontal and vertical accelerations to represent earthquake forces for retaining walls with shelves. Mathematical expressions are developed for the factor of safety against sliding and overturning. It is observed that retaining walls with shelves are more stable under static and dynamic conditions compared to those walls without shelves.
ISSN:2196-7202
2196-7210
DOI:10.1007/s40515-024-00447-x