Soil nailing & shotcrete is structural wall to retain the material along the edge of the excavation or the slope in order not to collapse.

Slurry Wall is an artificial wall created by digging a drainage system with the help of the drilling mud where at the final stage process, the hole is filled with relatively impermeable material (bentonite cement or concrete plastic) that is used as a partition wall of water flow.

Ground anchor is a system to help the retaining wall to be able to withstand lateral loads that work safely.

Kingpost is a column temporary or permanent column that works with the system topdown structure. On the installation process, to maintain the straightness or verticality is used inclinometer.

BARTEC "Mechanical Splicing System" 
Licence in Indonesia From Dextra Manufacturing Co., Ltd. (Thailand)

Bar coupler is a system of mechanical rebar splicing.

Construction of buildings, dams and many other structures requires excavation below the existing ground water table. Such excavations requires lowering the water table below the slopes and the bottom of the excavation to prevent raveling or sloughing the slope and to ensure dry, firm working platform conditions for construction process/operations, this system to control the ground water table known as dewatering system.

Excavation in construction usually for buildings, basement and many other structures is any operation in which earth, rock or other materials in or on the ground is moved or otherwise displaced by means of any tools, such as excavator, bulldozer etc.

A concrete plant or batch plant or batching plant, is a unit system that combines various ingredients to form concrete. Some of these inputs include sand, water,  aggregate, fly ash, cement and other additives.