Ammico’s scope of work included the design and installation of diaphragm walls, excavation, dewatering, and piling works.

The major quantities and activities executed under this scope included the following:

• Construction of diaphragm walls, 800 mm thick and 12 m to 17 m deep, with a total length of 1,600 m

• Installation of removable ground anchors

• Installation of 900 mm diameter bored piles, 10.5 m to 15 m in length (2,030 nos.)

• Installation of 1,500 mm diameter bored piles, 25 m to 34 m in length (104 nos.)

• Excavation works with a total volume of approximately 1,172,109 cubic metres, including disposal

• Provision of two- and three-level basement excavations

• Maximum excavation depth of 25 m in the tower core area

• Installation and maintenance of a complete dewatering system