Settlement correction work | Identification of localized settlement due to buried debris! Jacking up correction of the pressure-resistant slab.
Precise investigation of localized subsidence of buried waste hidden in the gaps of survey points! Complete restoration of structural safety of the building through pressure plate jacking and high-viscosity resin injection.
Buried waste such as rubble and construction debris lurking in the gaps of ground investigation data can cause irregular ground softening due to aging and uneven load distribution, leading to significant localized subsidence where only parts of a building sink. Since representative point data from tests like SWS cannot capture this, sudden structural cracks or dangerous deformations may occur at specific locations of the shallow foundation. At Geotech, we conduct hand auger drilling and pinpoint subsurface exploration to accurately visualize the location and extent of buried waste as objective numerical data. In the repair process, we apply a space-saving jack-up method using pressure plates, synchronously driving small hydraulic jacks with the building's own weight as a reaction force, and performing precise horizontal adjustments in millimeter increments under constant high-precision laser monitoring. After the lift-up is completed, we inject high-flow air-entrained mortar (air milk) into the voids created under the floor to equalize the ground pressure over the area, while also pressurizing and sealing high-adhesion epoxy resin into the damaged shallow foundation structure to restore its integrity and structural strength beyond that of when it was newly built. Through Geotech's advanced subsidence correction construction menu, we establish lasting structural safety at the foundation level.
- Company：ジオテック
- Price：Other
