Diaphragm Walls (Cast In Situ) is a retaining wall made with a system of drainage excavation with the help of the drilling mud (bentonite slurry/polymer) where the final stage of work is filled with steel reinforcement and casted directly with ready mix concrete.

Diaphragm walls (Precast) is a retaining wall made with a system of drain excavation with the help of the drilling mud (bentonite cement) where the final stage of work is filled with reinforced concrete (precast concrete). This work is limited (max. depth 18 meters) due to transportation problem

Soldier piles are retaining wall structure consisted of series of bored pile with a certain distance. (Not watertight).

Contiguous bored piles are watertight temporary retaining wall structure consisting of a joint of bored pile and bentonite cement pile that are connected each other.

Secant pile is a retaining wall structure consisted of a series of primary pile (drill holes filled with ready mix concrete without the reinforcement) and secondary pile (bored pile).

• Steel Sheet Piles
  Steel sheet piles are retaining wall structure consist of interconnected steel profiles which the installation process can use Hydraulic Jack, Vibro Hammer or Diesel Hammer.
   

• Corrugated Concrete Sheet Piles
  Corrugated concrete sheet piles are retaining wall structure consisted of a series of interconnected precast concrete where the installation process is using Vibro Hammer or Hydraulic Jack with the help of Water Jet Cutter.