Passive Earth Coefficients Retaining Wall Subjected to Inward and Outward Pressure
Passive Earth Coefficients Retaining Wall Subjected to Inward and Outward Pressure
Implemented parametric studies using finite difference modeling. Numerical passive earth pressure coefficients for radially displaced cylindrical walls were calculated at different radii ( 6 to 1000 m), that have been determined for soils granular material ( = 20 KN/m3, elastic bulk modulus K = 30 MPa and shear modulus G = 11.25 MPa, internal friction angle = 20°, 25°, 30°, 35°, and 40°, cohesion c = 0). In this paper, a new model of the retaining wall in the axi-symmetry conditions subjected to outward pressure is considered, which can be widely used in the design of grain silos, buildings, and road constructions. This study shows that, when considering the roughness ( 0°), the passive earth pressure in the axi-symmetry conditions case decreases with increasing value of the shaft radii until to be similar to the plane strain pressure, this for internal friction angle 30°.Numerical results are discussed and compared with recent experimental results and theoretical solutions. This study helps to assess the difference between the two models (outward and inword Mechanisms) when to apply to two methods (axisymmetric and plane strain) when study the lateral earth pressures acting on the vertical, rigid and circular shaft.
Abdelmadjid Meftah; Naima Benmebark; S. Benmebarek
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Slopes, embankment and retaining
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