Constructing towering structures
The top down construction method is one of the most effective ways of conducting deep excavations to build strong basements for superstructures. In this type of construction, a permanent structure is built from the top to bottom while excavating in levels towards the basement, as a retaining diaphragm wall provides support.
The entire process saves a lot of valuable time and helps complete the project well within the deadlines. This type of construction method is ideal in building modern-day superstructures like skyscrapers with basement storage units and parking lots, underpasses for subways and stations for metro trains.
Solutions we provide
- Deep Excavation for site. Building diaphragm wall as a retaining wall for the deep basement.
- Multi-level deep excavation using the most modern excavators with minimal disturbances
- Building strong basement slabs and multiple roof slabs to aid the excavation process and the next stage of basement construction.
The Process
- Stage 1: A diaphragm wall as a supportive retaining wall is constructed.
- Stage 2: The first stage of excavation is conducted at the roof slab level, with the help of struts for support.
- Stage 3: More roof slabs are constructed with spacious openings to allow the machinery to pass through and excavate further, and for the dug up materials to be removed.
- Stage 4: Excavation continues with each required level until the base slab levels are reached
- Stage 5: The base slab and walls for the basement are constructed. All non-permanent access openings are sealed shut.
- Stage 6: Backfilling above the roof slab is done to reinstate the surface environment.
Media
A sneak-peak into how the project was executed by our professional and efficient teams.
