Secant Piling

A Secant Piled Wall is a retaining wall constructed for ground retention prior to excavation. The wall is formed by constructing alternating primary (female) and secondary (male) piles where the secondary piles partially cut into either side of the primary piles in order to form a continuous impervious structure. 

Secant piled walls are formed by the construction of alternating primary unreinforced piles and secondary reinforced piles where the secondary pile partially cuts though the primary pile either side to create a secant. Secant piled incorporate hard then soft piles around the perimeter of a site.