Subsurface Correction Work | Epoxy Injection Pressure-Supported Slab Method to Repair Foundation Cracks and Partial Settlements
Subsidance correction work
Simultaneously overcome foundational cracks and partial subsidence! We will strongly repair the base of your home using a combination of high-adhesion epoxy resin injection and pressure-resistant slab methods.
This is a reliable sinking correction solution that fundamentally addresses the issue of building subsidence accompanied by foundation cracks. For structural cracks in the foundation caused by uneven ground or localized softening, high-viscosity epoxy resin is injected and filled under high pressure and density to restore the compromised structural strength and significantly improve waterproofing. At the same time, a pressure plate is precisely installed directly beneath the sunken foundation, and high-precision millimeter-level lift-up is performed using hydraulic jacks to restore the tilted building to a precise horizontal state. After the jacking is completed, air bubble mortar (air milk) is poured into the fine gaps that have formed between the foundation and the ground, filling and solidifying them without any gaps, significantly increasing the contact area to prevent future re-sinking or differential settlement. Since this solution accommodates construction while residents are living in the home without the need for large machinery, extensive demolition, or temporary relocation, it greatly reduces the burden on homeowners' daily lives and secondary costs such as temporary housing rent. With reliable construction techniques and uncompromising quality control, we dramatically restore the seismic resistance, durability, and asset value of homes, providing long-lasting peace of mind.
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basic information
This construction method is applied for the local settlement repair of cloth foundations and flat foundations. High-adhesion epoxy resin injection and U-cut sealant are used for structural repairs to enhance the bending strength and shear resistance of the structure. For settlement correction, a pressure-resistant slab method using steel plates (12mm thick or more, and at least 500mm x 500mm) or high-strength concrete slabs is adopted, with lifting performed by hydraulic jacks. A self-hardening lightweight bubble mortar (air milk) is used as the void filling material to completely integrate the ground and foundation after settlement correction.
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Applications/Examples of results
It is ideal for the restoration of single-family homes and multi-family residences that have experienced cracks or localized subsidence in their foundations due to uneven ground settlement or soil compaction, regardless of the age of the building. Since construction can be carried out while residents are living in the property without the need for temporary housing or relocation, it is often chosen in situations where minimizing the economic and mental burden on the homeowners is a priority. Additionally, it is widely used for repairs of foundation issues identified during the sale or inspection of used homes, as well as for the recovery and enhancement of real estate value through the reattachment of ground warranties.
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