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Excavation Support Systems are temporary earth retaining structures that allow
the sides of excavation to be cut vertical or near vertical. This is done to
maximize the size of an excavation; when the price of real estate is high or
space is limited by property lines, utilities or existing structures.
Excavation support systems most frequently use tiebacks or soil nails to resist
the lateral earth pressures. When adjacent structures require stabilization, we
underpin the foundation prior to excavation and support the lateral loads with
tiebacks as the site is dug out. In many soil conditions tiedback sheeting
systems (tiebacks, soldier piles and wood lagging) are the most economical
systems for temporary support of excavations.
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