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Objective
Lifting the deformed garage wall and foundation to the design level with hardening of the soil at the base.
Data
In the garage building under operation, deformations occurred in the masonry on the section of the outer wall due to uneven subsidence of foundations in the presence of loosened soil under. Dynamic penetration test revealed that it was caused by soaking and compressing the soil due to the penetration of atmospheric water runoff from the roof through the drainage pipe.
Goal
Restoration of the operational parameters of the garage building by strengthening the soil at the base of the foundation with its lifting to the design level.
Applied technology
The solution of the problem was solved by the applied method of deep Lifting by GeoResin technology. Measures to improve the soil included the injection of GeoResin geopolymer composition under the sunken foundation to achieve the required mechanical properties of the hardened soil while simultaneously lifting the sunken construction and wall to the design level by 15 mm. In total, 24 injections of polymer mixtures were made into the ground at different levels under the foundation.
Result
The injection result was verified by laser monitoring during injection and ground tests before and after the base strengthening, which allowed us to evaluate the improvement of the mechanical characteristics of the soil in the injection zone. Lifting the structures by an average of 15 mm confirmed the effectiveness of the measures. The project took 2 working days
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Technological excessive subsidence of a building columns
Stopping subsidence and increasing the load-bearing capacity of the pile foundation
In a residential building, a floor slab sank after a pipe burst
Reinforcement of base soils and re-leveling of floor slab
Leakage of the retaining wall of the entrance to the underground garage
Compaction of soils and plugging of leaks in the retaining wall structure
Eroding the foundation of the supporting columns
Strengthening the foundation foundation without disrupting the entire project schedule
Reinforcement of foundation soils and stabilization of the foundation
Reinforcement of foundation soils and stabilization of the foundation
Strengthening the foundation soil and stabilizing the foundation
Strengthening the foundation soil and stabilizing the foundation
The room sagged due to a weak soil base
Strengthening the base and leveling sagging structures
Subsidence of the slab and the appearance of a longitudinal crack
Compaction of the soil with filling the gap under the slab
