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T & C

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Piled Retaining Walls 

These are usually formed with bored cast-in-situ or Continuous Flight Auger piles. Retaining walls may be temporary or permanent and are used to support the ground, typically to form basement excavations.

Embedded walls take two forms either Contiguous (often referred to as ‘Contig’) or secant.  The contiguous wall is made up of piles installed in a row at spaced circa 150mm apart, this gives an earth retention system ideal for dry ground / excavation. 

Secant walls are similar to that of a contiguous wall however the piles are overlapped and form an ‘interlock’ through the excavation.  This interlock then inhibits ground water movement during the excavation.

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