H-Pile & Lagging

H-Pile & lagging shoring systems can be utilized for support of excavation and can be designed to achieve the specific needs of your project due to flexibility in size, depth and materials.  H-Pile & lagging can also be designed for permanent or temporary solutions. H-piles are drilled along the planned excavation perimeter prior to excavation. As the excavation progresses in “lifts” the lagging is installed horizontally between piles to retain the soil.

Lagging can consist of wood, steel, or precast concrete panels. For walls requiring additional height or stability, tiebacks can be drilled and grouted into the wall. Additionally, steel supports called walers can span between piles.  If easements or utilities present conflicts with tiebacks, internal rakers can used instead.

The Benefits of H-Pile & Lagging Systems:

  • Permanent or Temporary applications
  • Design flexibility due to material options
  • Can be a quicker and more cost-effective solution for excavation support.

How H-Pile & Lagging Systems Works:

  • Drilled H-Piles are installed along the perimeter of the proposed excavation.
  • The excavation contractor makes an initial “cut”, typically 5’ in height.
  • Lagging is installed horizontally for the height of the cut.
  • The excavation contractor will then make the next cut and the process repeats until the full height of the excavation is completed.
  • If additional support is required, grouted tiebacks can be installed into the wall and attached via a waler system that spans between h-piles.

Celebrating Over 30 Years of Quality Foundation Construction Services

Technical Foundations have been designing and installing h-pile & lagging systems for over 30 years on projects across the Mid-Atlantic region.  Our ample experience and value engineering services can bring added value to your project. Please feel free to contact us for your auger cast piling and design needs.

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