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Diaphragm Wall

Reinforced concrete wall built in-situ

A diaphragm wall is a reinforced concrete wall built in-situ. The trench is held open during excavation using a supporting slurry. Reinforcement is placed into the completed trench and concrete is poured in displacing the slurry to ensure the stability of the surrounding ground.

Diaphragm walls provide safe and cost effective solution to temporary and permanent retaining wall construction. The method is suitable for urban environments and when working close to existing buildings and where the water table is high and the ground highly permeable.

The integrated resort, Marina Bay Sands, built on the Marina Bay waterfront required Bachy Soletanche’s expertise in the management of major fast track projects and brought together a strong management team with a mix of local, regional and international members.

Constructing the innovative retaining walls as well as the foundations for the iconic MBS Hotels within a challenging schedule saw Bachy Soletanche using 18 excavating rigs, working 24hrs/day and 6 days/week to complete the works ahead of schedule. This despite an evolving design and extremely challenging ground conditions.

Our logistical excellence allowed us to keep this amount of equipment working efficiently with around 1,200m3 of concrete being poured per day at a time when concrete supply across Singapore was extremely stretched.

Notable Projects

Discover our other solutions

Diaphragm Wall

Deep Foundations



Soil Mixing

Piling and Underpinning

Ground Freezing

Diaphragm Wall   |   Deep Foundations   |   Tunnelling   |   Grouting   |   Soil Mixing   |   Piling and Underpinning   |   Ground Freezing