When we are building an underground structure like car parks or subways, how can we ensure the soil won't collapse and disturb the construction?

[Quest Bot]

When we are building an underground structure like car parks or subways, how can we ensure the soil won't collapse and disturb the construction process after the process of excavation?

 

[amd007]

When we are building an underground structure like car parks or subways, how can we ensure the soil won't collapse and disturb the construction process after the process of excavation?

By making use of SHORING PILES one can ensure that the soil won't collapse and disturb the construction process.

Another method is to have steps made in the excavation pit walls so that there is no risk of soil collapse.