Embedded Walls

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Secant Walls...

The secant wall is an adaptation of the contiguous bored pile wall where adjacent piles are over bored so that the piles interlock, they are ideal where water retention is an important consideration.

The technique has become more prevalent with the introduction of high torque twin table CFA rigs with the ability to overcore the female piles using casing (Cased Secant Piles - CSP). The advantage with this technique over conventional methods is that higher tolerances can be achieved with the consequential increase in watertightness.

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