scholarly journals Physical Modelling of a Strip Footing on a Geosynthetic Reinforced Soil Wall Containing Tire Shred Subjected to Monotonic and Cyclic Loading

2021 ◽  
Vol 34 (10) ◽  
Keyword(s):  
Cyclic Loading ◽  
Physical Modelling ◽  
Reinforced Soil ◽  
Strip Footing ◽  
Geosynthetic Reinforced Soil ◽  
Reinforced Soil Wall

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.

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.

scholarly journals Performance of Geosynthetic-Reinforced Soils Under Static and Cyclic Loading

2017 ◽  
Vol 7 (2) ◽  
pp. 1523-1527 ◽  
Author(s):  
M. Touahmia
Keyword(s):  
Cyclic Loading ◽  
Large Scale ◽  
Soil Mass ◽  
Reinforced Soil ◽  
Geosynthetic Reinforcement ◽  
Great Resistance ◽  
Geosynthetic Reinforced Soil ◽  
Confining Pressures ◽  
Pullout Failure ◽  
Static And Cyclic Loading

This paper investigates and discusses the composite behavior of geosynthetic reinforced soil mass. It presents the results of a series of large-scale laboratory tests supported by analytical methods to examine the performance of geogrid reinforcement subjected to static and cyclic pullout loading. The testing equipment and procedures used for this investigation are outlined. The results show that geosynthetic reinforcement can mobilize great resistance to static pulling load under high confining pressures. The reinforcement exhibits gradual deformation under cyclic loading showing no sign of imminent pullout failure for all levels of applied loads. In general, the results demonstrate that geosynthetic can be used in situations where loads are non-static, although care will be required in ensuring that appropriate factors of safety are applied to control the resulting deformation. A simplified analytical model for calculating the pulling capacity of geosynthetic reinforcement is proposed.

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