Indiacon Civil

How It's Built

Construction methods, step by step.

Short

Well foundation

A hollow caisson sunk into a riverbed to carry a bridge pier.

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Short

Road tunnel through a mountain: drill, blast, NATM

Excavate in rounds and let the rock help support itself.

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Short

Cut-and-cover tunnel

Dig from the surface, build the box, cover it back.

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Short

Isolated footing: five rules

Size, depth, edge thickness and cover for a simple footing.

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Short

Bored pile: bore, cage, tremie

How a cast-in-place pile is formed underground.

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Last reviewed: 23 Oct 2026. Sources: official publications and cited standards, see sources and policy. Report an error: comment on the related video on YouTube.