Subsidance correction work | Completely resolving floor tilt with low-noise ground reinforcement while living in the space.
No need for temporary housing! While living in the space, we will make millimeter adjustments to the floor's tilt using a low-noise hydraulic jack, achieving both the resolution of dizziness issues and a comfortable living environment through ground reinforcement.
This brochure explains the sinking correction work that resolves dizziness and health issues by correcting floor tilts without moving or temporarily relocating, allowing residents to continue their daily lives as usual. Millimeter-level floor inclinations that occur in homes continuously stress the human vestibular system, leading to unexplained dizziness and autonomic nervous system disorders. Our company conducts a preliminary Swedish-style sounding (SWS) survey and precise level measurements to objectively visualize the depth of ground weakness and the mechanisms of differential settlement. The construction procedure involves evenly placing compact hydraulic jacks directly under the foundation and safely lifting and correcting the building while implementing measures to follow the piping. We use low-noise, low-vibration quiet equipment for the work, allowing us to proceed quietly without causing noise issues, even in narrow sites close to property boundaries. After lifting, we combine steel pipe pile driving, i-LIFT, and the stubborn old man method to effectively prevent future re-settlement, thereby restoring a safe and healthy living environment.
basic information
This construction method specification is an environmentally friendly technology that restores floor tilt to a level within millimeters without compromising the convenience of the home being lived in. During the diagnostic phase, precise laser level measuring instruments and SWS penetration testing machines are used to calculate the amount of subsidence and the equivalent N value. For the lifting work, single-action and multi-stage ultra-compact hydraulic jacks and low-noise power units are used, and flexible joints are applied to the living plumbing to prevent infrastructure disruption. After the subsidence correction is completed, pressure insertion of carbon steel pipes with an outer diameter of 114.3mm and a thickness of 4.5mm or more, as well as high-pressure grout injection (i-LIFT), are performed, and epoxy resin injection is carried out into the foundation cracks to restore the rigidity of the structure.
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Subsidance correction work
Applications/Examples of results
It is ideal for residential renovations that require construction while living in the home, as well as for correcting floor inclinations in single-family homes where it is impossible to interrupt essential living infrastructure. It is used as a measure to address health issues for residents suffering from dizziness, headaches, and autonomic nervous system disorders caused by floor tilt. Additionally, it can be optimally utilized for construction in narrow, densely populated areas where large construction vehicles cannot enter, for noise and vibration prevention measures in sites that are extremely close to neighboring houses, for partial subsidence or crack repairs of cloth foundations, and for residential-level repairs while protecting plumbing around water areas, all while safeguarding the daily lives and health of residents and safely enhancing the structural strength of the foundation.
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