Bearing Capacity Failure of a Trapezoidal, Geosynthetic-Reinforced Soil Wall

1999 ◽  
Vol 6 (5) ◽  
pp. 383-416 ◽  
Author(s):  
S.C.R. Lo ◽  
J. Bosler ◽  
M. Gopalan
Keyword(s):  
Bearing Capacity ◽  
Reinforced Soil ◽  
Geosynthetic Reinforced Soil ◽  
Reinforced Soil Wall

scholarly journals Numerical Study of Geosynthetic-Reinforced Soil Wall Subjected to Static Footing Loading

2021 ◽  
Vol 17 ◽  
pp. 13-20
Author(s):  
Ananya Srivastava ◽  
Sagar Jaiswal ◽  
Vinay Bhushan Chauhan
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Numerical Study ◽  
Complex Structure ◽  
Retaining Walls ◽  
Ultimate Bearing Capacity ◽  
Reinforced Soil ◽  
Geosynthetic Reinforced Soil ◽  
Reinforced Soil Wall ◽  
Offset Distance

This study intends to examine the behavior of a GRS wall with static footing loading above it, while varying the positions of the footing. For the study of behavior of such complex structure, finite element modeling is handy and enables to look into the various stress/strain developed in the numerical model. In view of the above, a series of finite element (FEM) simulations using a software (Optum G2) is performed for the analysis of the GRS wall. The governing parameters, such as footing width (B), reinforcement length (L), offset distance (D), are evaluated and the effect of these factors on the ultimate bearing capacity (q) and settlement (s) of the footing is presented in this study. The results depict that the settlement of the footing substantially reduced in the range of 36% and its ultimate bearing capacity is increased to 42% more than the conventional retaining walls.

A novel approach to estimating the bearing capacity stability of geosynthetic reinforced retaining walls constructed on yielding foundations

2005 ◽  
Vol 42 (3) ◽  
pp. 763-779 ◽  
Author(s):  
Graeme D Skinner ◽  
R Kerry Rowe
Keyword(s):  
Bearing Capacity ◽  
Retaining Wall ◽  
Cost Effective ◽  
Careful Consideration ◽  
Reinforced Soil ◽  
Collapse Mechanism ◽  
External Stability ◽  
Geosynthetic Reinforced Soil ◽  
Reinforced Soil Wall ◽  
Novel Approach

Yielding foundation conditions have been shown to adversely affect the stability and behaviour of overlying geosynthetic reinforced soil walls. To avoid serious problems and maintain a cost-effective design, careful consideration must be given to short-term stability. Previous research has shown that lengthening and stiffening the bottom reinforcement layer of the wall can increase the external stability, but the magnitude of this increase is not well understood. To provide insight regarding the potential benefit of lengthening and stiffening the bottom reinforcement layer, a numerical investigation is made of the plastic collapse mechanism due to bearing capacity failure of the foundation deposit for the case of a 6 m high geosynthetic reinforced retaining wall on a 10 m thick soft to firm visco plastic clay stratum. The calculated behaviour of the wall is compared with that from typical and novel design considerations for both a conventional reinforced wall and a wall where the bottom reinforcement layer has been extended and stiffened. A parametric study of the extended bottom reinforcement layer stiffness and interaction is reported, and the influence on the external stability is discussed.Key words: reinforced soil wall, soft yielding foundation, bearing capacity design, numerical analysis.

Lateral bearing capacity and failure mode of geosynthetic-reinforced soil barriers subject to lateral loadings

2016 ◽  
Vol 44 (6) ◽  
pp. 799-812 ◽  
Author(s):  
Kuo-Hsin Yang ◽  
Jonathan T.H. Wu ◽  
Rong-Her Chen ◽  
Yi-Shou Chen
Keyword(s):  
Bearing Capacity ◽  
Failure Mode ◽  
Reinforced Soil ◽  
Geosynthetic Reinforced Soil

scholarly journals Behavior of granular rubber waste tire reinforced soil for application in geosynthetic reinforced soil wall

2015 ◽  
Vol 8 (4) ◽  
pp. 567-576 ◽  
Author(s):  
G. G. D. RAMIREZ ◽  
M. D. T. CASAGRANDE ◽  
D. FOLLE ◽  
A. PEREIRA ◽  
V. A. PAULON
Keyword(s):  
Clayey Soil ◽  
Reinforced Soil ◽  
Unit Weight ◽  
Triaxial Tests ◽  
Rubber Mixture ◽  
Waste Tire ◽  
Backfill Material ◽  
Geosynthetic Reinforced Soil ◽  
Rubber Waste ◽  
Reinforced Soil Wall

AbstractLarge quantities of waste tires are released to the environment in an undesirable way. The potential use of this waste material in geotechnical applications can contribute to reducing the tire disposal problem and to improve strength and deformation characteristics of soils. This paper presents a laboratory study on the effect of granular rubber waste tire on the physical properties of a clayey soil. Compaction tests using standard effort and consolidated-drained triaxial tests were run on soil and mixtures. The results conveyed an improvement in the cohesion and the angle of internal friction the clayey soil-granular rubber mixture, depending on the level of confining stress. These mixtures can be used like backfill material in soil retaining walls replacing the clayey soil due to its better strength and shear behavior and low unit weight. A numerical simulation was conducted for geosynthetic reinforced soil wall using the clayey soil and mixture like backfill material to analyzing the influence in this structure.

The influence of facing stiffness on the performance of two geosynthetic reinforced soil retaining walls

2006 ◽  
Vol 43 (12) ◽  
pp. 1225-1237 ◽  
Author(s):  
Richard J Bathurst ◽  
Nicholas Vlachopoulos ◽  
Dave L Walters ◽  
Peter G Burgess ◽  
Tony M Allen
Keyword(s):  
Limit Equilibrium ◽  
Retaining Walls ◽  
Reinforced Soil ◽  
Test Facility ◽  
Geosynthetic Reinforced Soil ◽  
State Highway ◽  
Current Limit ◽  
Reinforced Soil Wall ◽  
Simplified Method ◽  
Flexible Wall

Current limit equilibrium-based design methods for the internal stability design of geosynthetic reinforced soil walls in North America are based on the American Association of State Highway and Transportation Officials (AASHTO) Simplified Method. A deficiency of this approach is that the influence of the facing type on reinforcement loads is not considered. This paper reports the results of two instrumented full-scale walls constructed in a large test facility at the Royal Military College of Canada. The walls were nominally identical except one wall was constructed with a stiff face and the other with a flexible wrapped face. The peak reinforcement loads in the flexible wall were about three and a half times greater than the stiff-face wall at the end of construction and about two times greater at the end of surcharging. The stiff-face wall analysis using the Simplified Method gave a maximum reinforcement load value that was one and a half times greater than the measured value at the end of construction. Furthermore, the surcharge pressure required to reach the creep-limited strength of the reinforcement was about two times greater than the predicted value. The results demonstrate quantitatively that a stiff facing in a reinforced soil wall is a structural component that can lead to significant reductions in reinforcement loads compared to flexible facing systems.Key words: geosynthetics, retaining walls, reinforced soil, wrapped face, structural facings.

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