Pile cap and helical pile are both construction methods commonly used in pile foundation engineering.

Pile cap is usually used to support the loads on the pile foundation and distribute the loads to the individual piles. It is usually designed to

transfer the loads to the piles at a level below the ground surface.

Helical pile is a type of pile that is screw-shaped and made of steel or concrete. It is typically used to provide lateral support to the pile cap and

to prevent the pile cap from sinking or tilting due to the loads applied.

When using pile cap and helical pile together, they can provide improved support for buildings or other structures with high loads, such as

bridges, and allow for more efficient use of space. The helical pile provides lateral support to prevent the pile cap from moving, while the pile

cap provides a stable platform for supporting the structure.

In summary, the combination of pile cap and helical pile can provide improved support and stability for structures with high loads.