P/T Piled Raft Slab
Why Choose a Piled Raft?
Piled raft foundations are a versatile and economical solution, particularly in soft soil conditions, for reducing settlement and improving the overall performance of large structures. They offer a transition between a pure shallow raft and a complete pile foundation by strategically using a limited number of piles.
How can Post-tensioning provide an advantage?
Post-tensioning in a pile raft slab provides significant structural and serviceability benefits by introducing a pre-compression force that counteracts tensile stresses from applied loads and differential settlement. This reduces the risk of cracking, enhances durability, and improves long-term performance of the slab when interacting with both soil and piles. By controlling deflection and crack widths, post-tensioning allows the slab to span larger distances between piles, optimizing pile spacing and reducing the total number of piles required. The result is a more efficient and economical foundation system, combining the load-sharing capacity of the soil and piles with the enhanced stiffness and integrity of a prestressed slab.
Enhanced by AI Optimization
Our technology integrates the JAYA optimization algorithm with advanced structural and geotechnical modeling to create an intelligent design framework for pile raft slabs. The process begins with realistic soil–structure interaction models that account for pile stiffness, raft flexural behavior, and soil support variability. JAYA (RV Rao, 2016), being a parameter-free metaheuristic, searches for the best design variables—such as pile spacings, subgrade modulus and allowable pile load—without requiring algorithm-specific tuning. The algorithm iteratively minimizes objectives like total cost, material use while satisfying safety and serviceability constraints from structural codes. By directly steering solutions toward the best candidate while avoiding the worst. This results in a robust decision-support tool that balances soil bearing contribution, pile load sharing, and raft flexural efficiency, enabling engineers to achieve cost-effective, safe, and high-performance pile raft slab systems.