Steel beam and lagging as a shoring or earth retention system has been used for well over 100 years. The steel beams can be any number of size and shape, and can be installed by pile driving (although rarely performed in Arizona this way), or open hole drilling. The lagging refers to the systematic installation of wood planks or boards, one at a time, between the beams to retain the soil. Some alternatives to lagging, or also known as the facing system, include steel plates and shotcrete.
Buesing Corp has installed steel beam & lagging type shoring systems on many contracts as part of a design-build specialty contract. There are many factors that make a steel beam and lagging system the most viable option compared to other shoring systems, including PL/ROW requirements and utility conflicts.
There are also two fundamental types of steel beam shoring systems. One system includes rows of horizontal tendons called tie-backs, that assist the beam in resisting the soil load. These tie-backs are horizontal drilled, are comprised of steel and grout, and are tensioned. The other type of steel beam shoring system is called cantilever, whereby there is no horizontal tendon or tie-back.
Buesing Corp has extensive experience in both types of steel beam shoring and will propose and install the most appropriate and cost-effective system for your project.