Pile-screw foundation compares favorably with most other designs. Prior to the invention of this type of foundation, it was considered impossible to build lighthouses and bridges on unstable fine-grained soils of the seabed. During its construction, screw piles are screwed into the ground to the level of its freezing. Such a foundation perfectly withstands overloads and does not cause additional vibration, so it does not contribute to the flow of weak soils. Pile-screw foundation is excellent for buildings on uneven terrain and in swampy areas. It increases the reliability of capital buildings. On this page you can find photos of the pile-screw foundation.