Settlement correction work | Foundation settlement cracks addressed with SWS investigation and partial jacking with consideration for neighbors.
Subsidance correction work
Analyzing partial subsidence and cracks in the foundation using SWS investigation! We will ensure safe construction with consideration for neighbors in densely populated residential areas through low-noise and low-vibration partial jack adjustments.
This construction method is a surrounding consideration type of settlement correction solution that safely resolves partial sinking of strip foundations and structural cracks that occur in densely populated residential areas or small lots with narrow spacing from neighboring properties. By conducting a pre-emptive SWS (Screw Weight Insertion) test and precise level measurements, we accurately quantify ground unevenness even in tight spaces and identify the causes. During construction, we selectively use electric hydraulic pumps that do not emit exhaust gases, as well as low-noise and low-vibration equipment, while minimizing the storage space for materials to thoroughly reduce traffic obstruction and noise stress for neighbors. We place small multi-stage hydraulic jacks in the limited gaps under the floor and beside the foundation, performing millimeter-level horizontal restoration while monitoring with high-precision laser level measuring instruments. Cracked areas of the foundation are treated with epoxy resin injection, and we strongly prevent re-sinking through the insertion of small-diameter steel pipe piles and the installation of pressure-resistant slabs. This reliable method perfectly balances construction while the client resides in the property and consideration for the neighbors.
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basic information
The applicable targets are wooden and lightweight steel houses (with a mat foundation structure) located in densely built residential areas or on small plots of land. For the investigation specifications, small SWS testing equipment and high-precision laser level measuring instruments will be used. The lifting equipment will include ultra-compact multi-stage hydraulic jacks (with a capacity of 5t to 20t) and quiet portable electric hydraulic pumps. For reinforcement and repair materials, high-adhesion epoxy resin injection materials, small-diameter STK steel pipes (such as those with a pile diameter of 101.6mm), steel pressure plates, and non-shrink mortar will be used, and space-saving material transportation and curing mask treatment will be standardly applied.
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Applications/Examples of results
It is ideal for the restoration of single-family homes where partial sinking or cracking of the foundation has occurred in densely populated areas with extremely narrow gaps between neighboring houses, or where the road width is too narrow for large machinery to enter. It is utilized in after-construction work by clients who absolutely want to avoid neighborhood disputes and noise complaints, as well as by construction and renovation companies that want to ensure safe construction and quality management in tight spaces. It is widely adopted for the purpose of safely and solidly restoring the ground and foundation while living without interrupting essential infrastructure.
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