Solutions for Diaphragm Wall - Bachy Soletanche Singapore

Diaphragm Walls

Creates Temporary or Permanent Deep Foundation and Earth Retention Walls.

Diaphragm walls is a reinforced concrete screen cast into the ground, used for all types of structures (underground stations, buildings, parking lots, basins, dams) and in all types of soil. It is one of Bachy Soletanche’s most frequently used techniques, for permanent retaining structures, deep foundations or the construction of deep cut-offs.

Our Processes

Guide wall construction: Consisting of two temporary reinforced concrete walls defining the precise layout if structure, to guide the drilling tool and support the future wall equipment.

Excavation of the panels: Using a bucket or an Hydrofraise®, in one or more passes, with the aid of support fluid (or drilling mud), which contributes in particular to the stability of the trench.

Placement of the reinforcement cage: The concrete encases the cages and gradually pushes the drilling mud back to the surface, where it is pumped to be recycled and reused.

Earthworks/Excavation: Carried out safely under the shelter of the diaphragm wall.

Equipment

A diaphragm wall involves excavating a trench, which can reach 90m depth and beyond, using a mechanical or hydraulic grab or a Hydrofraise® (technology developed by Soletanche Bachy) depending on the type of soil encountered.

Hydrofraise®

Hydraulic Grab

Diaphragm Wall Brochure

The diaphragm wall is a reinforced concrete screen cast into ground, used for all types of structures (underground stations, buildings, parking lots basins, dams) and in all type of soil. It is one of Bachy Soletanche Singapore’s most frequently used techniques, for permanent retaining structures, deep foundations or the construction of deep cut-offs.

Diaphragm Wall Brochure