TASK
Strengthening of the soil beneath the floor slab to a depth of 3–5 meters, void filling under the slab, and slab lifting.
TECHNOLOGY
Soil reinforcement using polyurethane resin PolyJET FTS.
MATERIAL
Expanding polyurethane — PolyJET FTS.
DESCRIPTION
Areas of floor slab settlement were identified, along with cracks in the slabs and at the wall-slab junctions. Voids up to 150 mm were detected beneath the floor slabs.
RESULT
A site investigation was carried out, and calculations were made to determine the required bearing capacity for future equipment installation. A two-component injection was performed to reinforce the soil. Voids under the slab were filled, and the slab was leveled as required. Quality control was conducted, and the resulting bearing capacity was verified by engineering calculations.