beam and lagging walls
what they are:
Beam and lagging walls are retention systems used to support soil loads for deep excavations.
how they work:
Temporary beam and lagging anchored walls typically consist of H-beams driven or drilled into the ground with wood lagging installed between the flanges of the beams to retain the soil. Permanent beam and lagging anchored walls require permanent lagging such as cast-in-place face or precast concrete lagging.
why you need them:
Beam and lagging walls are cost-effective support of excavation systems used in soils above the water table. They can be installed with or without tiebacks and can be used in excavations up to 70 feet deep.
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