Settlement correction work | Identifying buried debris causing settlement in survey gaps! Protecting infrastructure with pressure-resistant slabs.
Subsidance correction work
Identify the subsidence of buried waste lurking in the gaps of survey points! Protecting living infrastructure while restoring horizontally with pinpoint underground exploration and pressure plate jacking.
Buried waste such as rubble and construction debris hidden in the gaps of ground investigation data can cause uneven settlement over time, creating excessive tensile stress on urban gas and water supply pipes buried directly beneath buildings. To prevent serious equipment issues like pipe breaks and leaks, advanced technology is required to accurately identify the causes without halting the operation of homes and businesses, and to level the ground. At Geotech, we clearly visualize the relationship between underground pipes and buried waste through hand auger drilling and pinpoint subsurface exploration, objectively identifying the causes of settlement. For leveling, we employ a space-saving pressure slab jack-up method, using the building's own weight as a reaction force to carefully lift in millimeter increments with small hydraulic jacks. By continuously monitoring the displacement of the piping with laser measurements during construction, safe horizontal restoration can be achieved without interrupting infrastructure functions. Furthermore, we combine pressurized filling of air milk into underground voids with high-viscosity epoxy resin injection into foundation cracks to prevent re-settlement and ensure long-term equipment protection. Geotech's settlement correction construction menu maintains a safe living environment.
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basic information
This is a pipe protection type settlement correction technology targeting existing single-family homes and mixed-use residential buildings (wooden, lightweight steel, cloth foundation, and flat foundation). For underground obstacle exploration, we employ hand auger drilling machines and probing rods for trial excavation and line identification, measuring inclination angles and height differences in millimeter units using high-precision digital laser levels. In settlement correction, structural carbon steel plates with a thickness of 12 millimeters or more (at least 500 millimeters square) or concrete pressure plates are placed, and pipe-following lifting is performed through linked control of small hydraulic jacks. For foundation reinforcement, high-adhesion epoxy resin injection materials are used, and lightweight bubble mortar (air milk) is injected at low pressure and high density into the voids at the bottom.
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It is used for the localized subsidence repair of single-family homes and mixed-use residential buildings caused by the sinking of underground buried waste, as well as for preventing distortion and correcting the level of utility piping. It is ideal for sites where construction needs to be completed while fully maintaining living infrastructure and business operations, while avoiding the risk of ruptured water leaks in city gas pipes and water supply and drainage pipes. It meets the needs of store owners and clients who absolutely do not want to experience business interruptions due to construction while living on-site or through temporary housing or relocation. It is widely utilized as a high-value-added solution in geotechnical subsidence correction construction menus, ensuring the safety of lifelines.
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