Methods for neutralizing the drawdown

To draw the first type of soil, you need to adapt the foundation to possible difficulties in construction. On such soils, you can lay a columnar or strip foundation, but still a slab foundation is more suitable. Such a foundation has a sufficiently large area, and the soil under the stove does not very strongly locks from surface waters. If they happen, local subsidence is not the building, it will be unevenly settled, since the loads will be distributed to other sections of the plate. The slabs are deepened or placed on the surface.

They also use a pile foundation that is based on the mainland. It is more often laid if there is a high probability of getting into the foundation. If you expand the sole of the base, there is no possibility and the mainland is very deep, then an increase in the resistance of the soil is slightly in the other way. To do this, it is compacted with tamping and at the same time soak. Such work is carried out when the soil has a small drawdown. The soil is also compacted by rollers and heavy tampings. You can add pillows of pillow from non -sealing soils. Such actions are necessary if the tamping did not bring any results. The pillow is laid, on top of a compacted soil or completely replacing it. After filling the pillow, it is also tamped. If the construction is planned on soils of the second type, then the shrinkage of soil or support for the foundation will not help here. For suction, you need to completely replace it with a soil pillow. The foundation will need to be deepened at a level below the subsidence soils.