Secant Forms / Secant Pile Walls / Contiguous Piles

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Secant Pile Walls Construction Methodology
Secant pile walls are an extremely effective type of embedded or in-ground retaining wall. They are formed with intersecting piles of concrete forming a continuous structure. Secant walls hold soil and rock back, even in unstable soil conditions, while preventing water flow into the excavation area. They provide a high lateral strength for embedded foundations with the added advantage of a top down construction method. This causes much less noise and vibration than other retaining wall options. All this translates into contractors being able to build walls and foundations very close to property lines, also in some cases work without additional construction in front of the excavated face.
Popular Applications for Secant Walls
Basement Construction
Underground Parking Garages
Waterfront Structures
Tunnel Approaches
Dam Construction
Developments that need to maximise space right up to property boundaries
Projects where excessive vibration will create dangerous soil disturbance
Urban sites that can’t accommodate large construction areas
Sites or soil conditions that cannot accommodate heavy specialized equipment
Hard and Rocky soil conditions
Wet soil conditions
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