Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Passive earth pressures with sloping backfill based on a statically admissible stress field
Abstract Passive earth pressure is a fundamental problem in the field of soil-structure interaction. In this study, a fully plastic solution obeying the Mohr-Coulomb criterion was successfully developed to estimate passive earth pressure against rigid retaining walls with various sloping backfills, wall roughness, and wall rear face inclination. The numerical procedures using a shooting technique and the 5th order adaptive Runge-Kutta method were successfully developed for boundary-value and initial-value problems, respectively. The developed procedures successfully coped with the numerical integral in non-smooth domains then statically admissible stress fields in the sloping backfills are explored. The stress distributions together with the trajectories of principal stresses in various sloping backfills are presented to demonstrate the load transfer mechanisms of cohesionless soil in various geometries of the backfill. The effects of the wall roughness, the wall rear face inclination, and backfill inclination on the load transfer mechanism of the cohesionless soil behind the retaining wall are investigated. The obtained results of passive earth pressure coefficients (K p) are validated by comparing with an exact solution and some well-known experimental works. Thus, highly accurate values of passive earth pressure coefficients on rigid retaining walls with various sloping backfills, wall roughness, and wall rear face inclinations are provided for engineering practice.
Passive earth pressures with sloping backfill based on a statically admissible stress field
Abstract Passive earth pressure is a fundamental problem in the field of soil-structure interaction. In this study, a fully plastic solution obeying the Mohr-Coulomb criterion was successfully developed to estimate passive earth pressure against rigid retaining walls with various sloping backfills, wall roughness, and wall rear face inclination. The numerical procedures using a shooting technique and the 5th order adaptive Runge-Kutta method were successfully developed for boundary-value and initial-value problems, respectively. The developed procedures successfully coped with the numerical integral in non-smooth domains then statically admissible stress fields in the sloping backfills are explored. The stress distributions together with the trajectories of principal stresses in various sloping backfills are presented to demonstrate the load transfer mechanisms of cohesionless soil in various geometries of the backfill. The effects of the wall roughness, the wall rear face inclination, and backfill inclination on the load transfer mechanism of the cohesionless soil behind the retaining wall are investigated. The obtained results of passive earth pressure coefficients (K p) are validated by comparing with an exact solution and some well-known experimental works. Thus, highly accurate values of passive earth pressure coefficients on rigid retaining walls with various sloping backfills, wall roughness, and wall rear face inclinations are provided for engineering practice.
Passive earth pressures with sloping backfill based on a statically admissible stress field
Nguyen, Tan (Autor:in)
31.05.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Earth Pressures with Sloping Backfill
| British Library Online Contents | 1998
Earth Pressures with Sloping Backfill
| British Library Online Contents | 1997
Earth Pressures with Sloping Backfill
| Online Contents | 1997
DISCUSSIONS - Earth Pressures with Sloping Backfill
| Online Contents | 1998