Geohan | Earth Retaining Structural Works

EARTH RETAINING STRUCTURAL WORKS

CAISSON WALL

A caisson wall comprises a series of caisson piles and lagging walls. Caisson piles are installed vertically, while lagging walls are cast in between exposed caisson piles to form the external surface of the caisson wall. A capping beam, which is reinforced concrete, is then formed on-site to secure the caisson piles.

An anchored caisson wall is an extension of the caisson wall with ground anchor tie backs.

Method of Statement

CONTIGUOUS BORED PILE WALL

A contiguous bored pile wall is constructed using closely spaced bored piles. It is a bore cast-in-situ piles formed by excavating a hole, of the specified size (diameter), to the required depth and casting the excavated hole with concrete of specified strength after the reinforcement is lowered into the hole.

Method of Statement

DIAPHRAGM WALL

A diaphragm wall is a continuous reinforced concrete wall constructed on-site through the excavation of soil to form a narrow trench, and the filling of this trench with a rebar cage and concrete.

Method of Statement

SECANT PILE WALL

A secant pile wall is a retaining wall made of interlocking bored piles with varying diameters.
Primary piles are first installed and left to set, followed by secondary piles which are installed in
between the primary piles.

Method of Statement

SOLDIER PILE WALL

A soldier pile wall is constructed by first inserting steel beams into excavated shafts and filling
sand around the steel beams to form soldier piles. Following which, horizontal timber logs are
installed in between the soldier piles.

Method of Statement