Abstract
Soil reinforcement technology is beneficial for weak and soft subgrade soils supporting the footing loads. Vertical reinforcement to it further enhances the bearing capacity substantially. Fine micropiles as vertical reinforcement are becoming more popular. This numerical study focuses on the performance of subgrade soil (fly-ash), reinforced with fine-micropiles as the vertical reinforcement. The numerical model was developed in SIGMA/W of GeoStudio 2016 based on laboratory model tests. Analysis was carried out to study the influence of length of the reinforcement, spacing between the reinforcing bars and their lateral extent beyond the footing edge on the bearing capacity and settlement of the foundation system. The analysis shows that the bearing capacity increases and the settlement decreases with a decrease in the spacing between the reinforcing bars and increase in their lateral extent beyond the footing edge. The maximum improvement in the bearing capacity of the reinforced fly ash was obtained as 340% with a corresponding decrease in the settlement of 86%. For all spacing and lateral extent values, the bearing capacity increases by increasing the length of the reinforcement bars.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Geosynthetics and Ground Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
