We offer underpinning services!

We offer underpinning services!

Structural underpinning is a construction technique used to strengthen and stabilize the foundation of an existing building. This process is typically necessary when the original foundation is deemed insufficient or unstable due to factors such as soil subsidence, changes in the structure of nearby buildings, or other geological conditions. Here are the general steps involved in structural underpinning:

  1. Structural Assessment:

    • Before starting any underpinning work, a thorough structural assessment is conducted by a qualified structural engineer. This assessment helps determine the current condition of the foundation and identifies any structural issues that need to be addressed.
  2. Site Preparation:

    • The area around the foundation is cleared, and any utilities (such as water or gas lines) are identified and properly marked. Excavation may be required to expose the existing foundation.
  3. Excavation:

    • Depending on the specific requirements, portions of the soil beneath the existing foundation may be excavated. This creates space for the installation of new foundation supports.
  4. Installation of New Supports:

    • New supports, such as steel or concrete piers, are installed beneath the existing foundation to provide additional stability. These supports may extend to a more stable soil layer or bedrock.
  5. Load Transfer:

    • The load of the building is carefully transferred from the original foundation to the newly installed supports. This is typically done incrementally to avoid excessive stress on the structure.
  6. Monitoring and Adjustments:

    • Throughout the underpinning process, the building is carefully monitored to ensure that the load transfer is occurring as planned. Adjustments may be made as needed to achieve the desired level of stability.
  7. Backfilling and Site Restoration:

    • Once the underpinning is complete and the structure is stable, the excavated area is backfilled, and the site is restored to its original condition as much as possible.

It's important to note that structural underpinning is a complex process that requires the expertise of qualified professionals, including structural engineers and contractors. Local building codes and regulations must also be followed to ensure the safety and compliance of the underpinning work.

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