Subsurface Settlement Correction Work | Preventing liquefaction settlement caused by heavy rain and flooding through chemical pressure injection.
Preventing liquefaction sinking risks caused by heavy rain and rising groundwater levels in advance! Achieving disaster prevention ground reinforcement for existing homes with the i-LIFT method and chemical pressure injection.
In response to the rising groundwater levels caused by heavy rain and typhoons, as well as the liquefaction risks during large-scale earthquakes faced by existing homes, Geotech proposes the pre-subsidence prevention method "i-LIFT Method" using pressure-injected chemical solutions. This method involves the pressure injection of high water-resistant, quick-setting cement-based grout into the weak saturated sandy layers directly beneath the building, dramatically improving the shear strength and bearing capacity of the ground through a three-stage approach: formation of a support layer, foundation reinforcement, and precise lift-up. By using high-precision laser measuring instruments to continuously monitor displacement in real-time during construction, it enables accurate horizontal restoration to the millimeter level without imposing excess loads on the building structure. The use of compact equipment that does not involve demolition or extensive excavation allows for "construction while living," eliminating the need to move to temporary housing. Environmentally friendly injection materials that are resistant to outflow and deterioration from groundwater are used, effectively blocking future subsidence risks and strongly preserving the disaster prevention performance and asset safety of important homes.
basic information
Based on the i-LIFT method (patent pending technology), high water-resistant and non-dispersive quick-setting cement-based grout material is pressure-injected into the ground. The construction is carried out in three stages: formation of the support layer, foundation reinforcement, and lift-up, with real-time continuous monitoring using high-precision laser levels and three-dimensional displacement sensors. Even in sites with high groundwater levels, it prevents grout leakage and maintains long-term water resistance and chemical stability. Space-saving construction equipment is used, making it possible to work in densely populated areas and harsh environments.
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Subsidance correction work
Applications/Examples of results
It is ideal for the prevention of pre-sinking in existing homes that are concerned about ground softening and liquefaction due to heavy rainfall and rising groundwater levels, as well as for the horizontal correction of tilted single-family homes caused by uneven sinking. It is effective in homes located near rivers or in low-lying areas that are susceptible to water influence, and in renovation sites where the foundation structure needs to be reinforced without damage. Additionally, it can be widely utilized in situations where homeowners wish to complete construction in a short period without temporarily relocating, as well as for restoring the disaster prevention performance and structural strength of homes in preparation for disasters.
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