In cases where there is a low level of groundwater and when it is necessary to transfer the load from the foundation to the ground, the piles supplied under the sole of the foundation are installed. “Bone to the sole of the foundation” they are called precisely because they are located at the level of the foundation, and unlike remote piles are not pressed to a greater depth.
By the way, as for the method of pile corn in the ground, it is precisely the method of pressing, and not clogging. This is another fundamental difference from the installation of remote piles.
The piles themselves are hollow metal pipes about one meter long, which are then filled with concrete solution.
Before the start of the pile pressing process, a reinforced concrete belt is installed at the floor level of the first floor. Also, at the level of conjugation of the foundation and walls, reinforced concrete beams are mounted, which will be the basis for the stop of the jack. It is with the help of the jack that piles will be pressed into the ground. The entire structure of the reinforced concrete belt and reinforced concrete beams has a hard coup. Is located, of course, on both sides of the foundation, like the piles themselves.
For direct fixing of the jack, another inventory metal beam is installed, which is connected to three adjacent transverse reinforced concrete beams. That is, it turns out that reinforced concrete beams are installed across the wall. And inventory beams made of metal, which are parallel to the wall, fasten them. After the work, the inventory beams are dismantled.
After pushing the piles, a special arm frame is installed on their headlines, as well as the formwork.
At the end, the piles are filled with a concrete mixture.