Author(s): Devesh Ojha & Rajendra Kumar Srivastava
This study presents an analysis of piled raft foundations on alluvial soil using GEOTECH 2D software. Alluvial soil, known for its soft and compressible nature, poses significant challenges for foundation design and performance. Piled raft foundations, which combine the benefits of both rafts and piles, have gained attention as a potential solution to mitigate settlement and improve load-bearing capacity. The study focuses on the behaviour of piled raft foundations in alluvial soil by utilizing GEOTECH 2D software, a powerful numerical tool for geotechnical analysis. The software incorporates advanced soil modelling techniques, considering non-linear soil behaviour and soil-structure interaction effects. Key parameters, including soil properties, raft, and pile dimensions, and loading conditions, are input into the software to simulate the behaviour of piled raft foundations. The analysis evaluates settlement, stress distribution, and load-bearing capacity to assess the foundation's performance. The results demonstrate that piled raft foundations exhibit reduced settlement and improved load distribution compared to conventional raft foundations in alluvial soil. The presence of piles increases the stiffness of the foundation system, effectively mitigating settlement and improving overall stability. Moreover, the software allows for sensitivity analyses, enabling investigation of the influence of various design parameters on the foundation's response. This provides valuable insights for optimizing the design and construction of piled raft foundations in alluvial soil conditions. The study emphasizes the significance of considering alluvial soil characteristics and employing appropriate analysis tools for accurate foundation design. GEOTECH 2D software offers a reliable and efficient platform for analysing piled raft foundations, aiding engineers in developing safe and cost-effective solutions in alluvial regions. In conclusion, the analysis of piled raft foundations on alluvial soil using GEOTECH 2D software demonstrates its effectiveness in assessing foundation behaviour and optimizing design parameters. The findings contribute to enhancing the understanding and implementation of piled raft foundations, offering a viable solution for mitigating settlement and improving load-bearing capacity in alluvial soil conditions.