Foundation piles are long, slender columns made of materials like concrete or steel, driven deep into the ground to support buildings and other structures. They transfer the weight of the structure to deeper, more stable soil or rock layers, ensuring stability and preventing settling or shifting over time. These piles are essential in construction, especially in areas with weak or unstable soil. By using foundation piles, engineers can create a solid base for structures like bridges, skyscrapers, and offshore platforms, allowing them to withstand various loads and environmental conditions.