Waterproofing Sheet Pile Walls

To sheet piled walls.

Waterproofing sheet pile walls.

Walls are not waterproof. Sheet piling see detail a detail a plan view membrane fixing detail sika standard cd membrane grommet and nail sheet piling drawn by checked by approved by 1 1 issue sheet d d c c b b a a 6 6 5 5 4 4 3 3 2 2 1 1 date description drawing no. In the construction of sheet pile walls the sheet pile may be driven into the ground and then the backfill placed on the land side or the sheet pile may first be driven into the ground and the soil in front of the sheet pile dredged. Cavity drainage membranes are the most reliable and effective method of waterproofing basement spaces however when used as the only waterproofing system with contiguous piled walls special attention is require.

Tangent piles cannot share load with adjacent pile. Soil must be able to span in between any small openings between the piles. The main disadvantages of tangent pile walls are. It is not possible to rely on a waterproof additive in the piles themselves.

As a result tangent piles are not recommended for cohesionless sand soils. Tests have demonstrated that leakage through sheet pile walls is reduced up to 95 when interlock sealants are used. The watertightness of arcelormittal s larssen interlocks invariably improves with time but a sealant provides a means by which the flow of water can be controlled faster and more reliably. A sealing system provides a cost effective solution to control water seepage through the wall for instance to minimise the risk of settlement of adjacent property or keeping excavations dry.

In either case the soil used for backfill behind the sheet pile wall is usually granular. Verticality tolerances may be hard to achieve for deep piles. Likewise it is not possible to waterproof the pile externally. Furthermore tests conducted in germany have shown wadit easily withstanding even 5 bars of water pressure and maintaining its.