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Numerical Evaluation of Subgrade Settlement with Varying Foam Mortar Thickness for Reinforcement

Authors: Ivanenko Liudmyla

Published: 2025-01-07 11:01:45.662

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Abstract

Soft soils are characterized by low bearing capacity, which can lead to significant settlement when subjected to loads. As the lowest layer in road construction, the subgrade must have adequate bearing strength to support the construction load. Variations in the thickness of soft soils in the subgrade can exacerbate settlement issues, making reinforcement essential. In this study, foam mortar is explored as a potential reinforcement to enhance the properties of soft soils. The aim of this research is to analyse the behaviour of soft soil embankments with foam mortar reinforcement, considering variations in the soft soil layer thickness. The analysis was conducted using the Plaxis 2D numerical model (version 2023). The model incorporated a foam mortar layer of 30 cm thickness, applied to subgrade layers with heights of 60 cm, 120 cm, and 180 cm. The study simulated a centralized load, varying from 0 to 120 KN in increments of 10 KN. The results revealed that the highest settlement occurred at the 180 cm soft soil layer, with a settlement of 0.01421 mm. Additionally, the largest deformation was observed in the soft soil layer, measuring 1.461 x 10^-3 mm demonstrates that as the thickness of the soft soil layer increases, both the settlement and deformation also rise. Foam mortar reinforcement shows promise in improving soft soil performance, but the variation in soil thickness needs to be carefully considered to minimize potential settlement issues.

Keywords

reinforcement, foam mortar, plaxis 2D, subgrade

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How to Cite

Ivanenko Liudmyla, (2025-01-07 11:01:45.662). Numerical Evaluation of Subgrade Settlement with Varying Foam Mortar Thickness for Reinforcement. Abhi International Journal of Applied Engineering, Volume pIxiKMSyqcR7LuqFkcaI, Issue 1.

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