Analyses of reinforced embankment on soft and hard foundations

Abstract

In this paper, the analyses and design using conservative limit equilibrium methods (AASHTO simplified and FHWA structure stiffness methods) were compared with the working stress methods called K-stiffness method (original and modified K-stiffness methods). Moreover, the predictions from the K-stiffness methods were confirmed from the observed data for a reinforced embankment on a hard foundation. Furthermore, since the reinforcement loads increased due to post-construction settlements for reinforced embankments on soft foundation, a further modification of the K-stiffness method is proposed. This further modification is concerned with the proposed settlement factor (Φs). The validity of this further modification is demonstrated by the good agreement between the maximum measured reinforcement loads and the recalculated maximum reinforcement loads from further modified K-stiffness method.

Design of MSE wall with reinforcing strips using FoundationPro

“…Baral et al performed numerical simulations using Plaxis for a full‐scale reinforced earth embankment constructed on a hard foundation in Phitsanulok Province, Thailand. Many other researchers have performed rigorous analysis in this field such as Bergado et al ; Allen and Bathurst ; and Duangkhae et al . An MSE wall is inexpensive and is fairly easy to construct since it does not require skilled labor to lay out alternate layers of soil and reinforcement or perform compaction.…”

Reinforced Embankment - An Efficient Method to Stabilize Gotvand Powerhouse Upper Trenches

“…Thus we can take advantage of gravity wall principles for our structure [3]. Nevertheless flexibility of reinforced soil should be considered in structural external stability analysis [4], such as bed punching shear resistance in case of long belt usage.…”

Bearing Capacity of Triangular Shell Foundations Adjacent to the Reinforced Sandy Slopes

“…The benefits of shell footings on extension of failure wedge into the depth of soil embankment impressed the authors to investigate the response of this foundation system at the vicinity of slopes. A number of researchers investigated performance of conventional flat footings situated near the unreinforced and reinforced sandy slopes [12][13][14][15][16][17][18][19][20][21]. Results of previous studies indicate that the maximum bearing capacity of flat footing and their settlement characteristics can be improved significantly by using reinforcement layers considering the effects of edge distance.…”