Subsurface correction work | Preventing land subsidence risks from neighboring land changes and liquefaction through pressurized chemical injection.
Subsidance correction work
Prevent liquefaction settlement risks caused by neighboring construction and groundwater fluctuations in advance! The i-LIFT method and chemical pressure injection strongly reinforce the foundation of existing homes.
In response to the risks of differential settlement and liquefaction of existing homes caused by nearby excavation, embankment work, and fluctuations in groundwater levels, Geotech proposes a pre-subsidence prevention solution using the "i-LIFT method" with pressure-injected chemical solutions. This method involves pressure-injecting non-dispersive, quick-setting cement-based grout into soft ground or sandy soil directly beneath the building, employing a three-stage approach of support layer formation, foundation reinforcement, and precise lift-up to fundamentally enhance ground strength. By utilizing high-precision laser measurement devices and three-dimensional displacement sensors, we can monitor structural behavior in real-time during construction, allowing for millimeter-level horizontal restoration without imposing undue stress on the building. The use of a static pressure injection method that does not generate impact noise or vibrations, along with compact, small-scale equipment, enables safe construction without causing encroachment or noise issues, even in sites closely adjacent to neighboring homes. We achieve "construction while living" without necessitating relocation or temporary housing, ensuring the enduring safety of your home while protecting the surrounding environment.
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basic information
Based on the i-LIFT method (patent pending technology), high-viscosity, non-dispersive instant-setting cement-based grout is injected into the ground under static pressure. The construction is carried out in three stages: support layer formation, foundation reinforcement, and lift-up, with constant real-time monitoring using high-precision laser levels and three-dimensional displacement measuring devices. The equipment used consists of a compact electric pump and a space-saving compact unit, ensuring low noise and low vibration during construction. The injected material is an environmentally friendly, non-toxic material that does not contaminate groundwater.
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Applications/Examples of results
It is ideal for preventing uneven settlement and liquefaction of existing homes due to nearby embankment and excavation work, as well as fluctuations in groundwater. It can be used for ground reinforcement and settlement correction in narrow sites where residential areas are densely packed and the distance to neighboring houses is only a few dozen centimeters, or in places where large machinery cannot easily access. It is extremely effective for renovation sites where the owner wishes to carry out construction while maintaining daily life without temporarily relocating to a temporary residence, as well as in high groundwater level areas where it is important to enhance the ground's bearing capacity and density without contaminating the surrounding environment or water quality, thereby preventing future settlement.
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