Root Piles

The construction process of a bored pile starts with the drilling of a hole in the ground using a suitable drill bit. The drilling can be done vertically or at an angle, depending on the project requirements. Once the desired depth is reached, a temporary steel casing called a "casing tube" is inserted into the hole to prevent collapse and stabilize the walls of the hole.

The root pile, also known as injection pile or tie-back pile, is a type of deep foundation used in civil engineering to transfer loads from the soil to deeper and more stable layers. Unlike other types of piles, the root pile is constructed in situ, meaning it is formed on-site where it will be used.

The root pile is a grouted pile that is cast in place, with a finished diameter ranging from 80 to 450mm. It has a high working load capacity and is composed of a sand and cement grout mixture. The entire length of the pile is reinforced with steel.

It can be constructed in both vertical and inclined directions, and with the use of specific tools, it can penetrate through various types of terrain, including reinforced concrete, rocks, and large boulders.

The root pile was developed in Italy in the late 1950s and had the basic function of foundation reinforcement. However, recent advancements in construction techniques and knowledge of soil mechanics have allowed for a safe increase in the load capacity and productivity of this type of pile.