Ruuvipaaluja

Ruuvipaaluja, meaning screw piles in Finnish, are a type of foundation system. They consist of a steel shaft with helical plates that are screwed into the ground. This process allows for the transfer of loads from a structure to the soil. Screw piles are a relatively modern foundation technology that has gained popularity due to their speed of installation and minimal environmental impact.

The installation of screw piles is typically performed using specialized hydraulic machinery. The machinery rotates the pile, driving it into the ground until the desired depth or torque is achieved, indicating sufficient load-bearing capacity. This method avoids the need for extensive excavation and concrete pouring associated with traditional foundations.

Screw piles are versatile and can be used in a variety of soil conditions, including soft soils and those with a high water table. They are employed in the construction of various structures, such as residential buildings, decks, fences, solar panel arrays, and temporary structures. Their modular nature also allows for easy removal and reuse, making them a sustainable option for certain applications. The helical plates provide significant uplift resistance, which is beneficial in areas prone to wind or frost heave. The design of the screw pile, including the diameter and number of helices, is determined by the specific load requirements and soil conditions of the project.