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Failure Mechanism and Behavior of Two-Tiered Bamboo Reinforced Mechanically Stabilized Earth Retaining Wall Subjected to Isolated Footing Load
Tiering of mechanically stabilized earth (MSE) retaining walls have several advantages over its single-tier counterpart, specifically reducing tensile stresses experienced by lower reinforcements. Bamboo reinforcements were investigated to determine if it was a viable economic and sustainable alternative. With the use of the finite element software RS2, a numerical analysis was conducted to verify the suitability of bamboo reinforcements in a two-tiered MSE wall subjected to an isolated footing load. A displacement-based approach on the footing was conducted to evaluate the wall’s response at the serviceability limit state of the varied reinforcements. Moreover, the viability of bamboo reinforcements was determined by comparing how they performed at the allowable and ultimate settlement of the footing against commercially available reinforcements. In terms of serviceability, the bamboo reinforcements were at par with the chosen commercially available reinforcements since none of the bamboo reinforcements yielded from the 25 mm allowable settlement of the footing proving that it can be used as a support for resisting vertical loads from a footing in a two-tier MSE wall. The reinforcement properties, specifically the tensile modulus and ultimate tensile strength, did not affect the failure plane developed which was log-spiral, at least for the geometry and properties of the wall in this study. However, reinforcements with higher tensile moduli, including bamboo, exhibited a rapid failure after a small footing settlement from initial reinforcement yielding to wall failure.
Failure Mechanism and Behavior of Two-Tiered Bamboo Reinforced Mechanically Stabilized Earth Retaining Wall Subjected to Isolated Footing Load
Tiering of mechanically stabilized earth (MSE) retaining walls have several advantages over its single-tier counterpart, specifically reducing tensile stresses experienced by lower reinforcements. Bamboo reinforcements were investigated to determine if it was a viable economic and sustainable alternative. With the use of the finite element software RS2, a numerical analysis was conducted to verify the suitability of bamboo reinforcements in a two-tiered MSE wall subjected to an isolated footing load. A displacement-based approach on the footing was conducted to evaluate the wall’s response at the serviceability limit state of the varied reinforcements. Moreover, the viability of bamboo reinforcements was determined by comparing how they performed at the allowable and ultimate settlement of the footing against commercially available reinforcements. In terms of serviceability, the bamboo reinforcements were at par with the chosen commercially available reinforcements since none of the bamboo reinforcements yielded from the 25 mm allowable settlement of the footing proving that it can be used as a support for resisting vertical loads from a footing in a two-tier MSE wall. The reinforcement properties, specifically the tensile modulus and ultimate tensile strength, did not affect the failure plane developed which was log-spiral, at least for the geometry and properties of the wall in this study. However, reinforcements with higher tensile moduli, including bamboo, exhibited a rapid failure after a small footing settlement from initial reinforcement yielding to wall failure.
Failure Mechanism and Behavior of Two-Tiered Bamboo Reinforced Mechanically Stabilized Earth Retaining Wall Subjected to Isolated Footing Load
Atlantis Highlights in Engineering
Hammah, Reginald E. (editor) / Javankhoshdel, Sina (editor) / Yacoub, Thamer (editor) / Azami, Alireza (editor) / McQuillan, Alison (editor) / Ifurung, Jlxeondyke Drie L. (author) / Ventura, Giancarlo P. (author) / Alcantara, Matthew Travis M. (author)
Rocscience International Conference ; 2023 ; Toronto, ON, Canada
Proceedings of the Rocscience International Conference 2023 (RIC2023) ; Chapter: 58 ; 625-632
2023-11-07
8 pages
Article/Chapter (Book)
Electronic Resource
English
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