A rigid earth retention and groundwater control solution

Secant and caisson walls are constructed by forming overlapping concrete elements to create a continuous wall. This technique provides high structural stiffness and effective groundwater control, making it well suited to deep excavations and sensitive urban environments.

Key advantages of Secant/Caisson Walls

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Groundwater Control

Overlapping elements form a low-permeability barrier, making this technique effective for excavations below the groundwater table.

Precision in Constrained Sites

Installed using drilling methods, secant and caisson walls allow for accurate geometry and controlled construction in dense urban settings.

High Stiffness & Structural Performance

The continuous concrete wall offers excellent resistance to lateral earth pressures, limiting ground movement in sensitive environments.

Applications

Secant and caisson walls are used on infrastructure, commercial, and institutional projects requiring rigid earth retention and water control.

Deep Excavations & Basements

Used to support deep excavations for basements, underground structures, and cut-and-cover works.

Urban & Sensitive Environments

Applied near existing buildings and infrastructure where strict control of ground movement is required.

Infrastructure & Underground Works

Used for shafts, stations, and underground facilities requiring long-term structural and hydraulic performance.

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Quality Assurance and Execution

Soletanche Bachy Canada delivers secant and caisson wall solutions using specialized drilling equipment and experienced installation teams. Construction parameters are carefully monitored to ensure wall continuity, alignment, and performance.

Quality assurance measures include verification of geometry, reinforcement placement, and concrete quality.

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