What are the advantages of using top-down approach in basement construction

[Chetan Yadav]

What are the advantages of using top-down approach in basement construction?

Answer: The advantages of top-down approach are listed below:

• The structures above ground can be carried out simultaneously with the structures below ground. This greatly reduces the time for construction.
• By using this approach, settlement can be reduced.
• Since the permanent columns and slabs can be utilized to support loadings during construction, it saves the cost of form-work.

Note: Top-down approach means construction of basement is carried out from ground level downwards.