Optimization of Circular Footing Size by Sand Substitution and Geogrid Reinforcement

Abstract

Introduction: The performance of circular footing in cohesive soil can be significantly enhanced through soil improvement and proper optimization of footing design.

Objectives: The study investigated the optimization of footing diameter and enhancement of cohesive soil by replacement of soil with sand at varying depths and incorporating geo-grids at various spacings.

Methods: Finite element modeling was used to model the footing to stimulate the behavior of the footing in improved soil.

Results: The study investigated how the bearing capacity, settlement, and general stability of the footing were affected by different sand replenishment percentages, depth, and geogrid spacing. According to the results, replacing sand and placing geogrids strategically both significantly improve the soil's ability to support loads and lessen footing settling. Additionally, geogrid spacing optimization offers a cost-effective design option that strikes a compromise between performance and cost. Through economical soil improvement techniques,

Conclusions: The research's conclusions provide useful information for designing foundations on soft soil, resulting in improved load distribution and decreased settlement.