What is excavation of foundation trenches?

Excavation is the equipment-heavy task of removing the earth from the allotted area in order to make room for the foundation. Depending on the depth and hardness of the soil, the trench may need to be reinforced as earth is removed.

What is trench excavation?

TRENCH: An excavation in which material removal forms a narrow opening in the ground. Unlike large excavations, a trench is generally deeper than it is wide. OSHA considers an excavation to be a trench if it is 15 feet wide or less at the bottom of the excavation.

What is the purpose of trench excavation?

Trench excavations are carried out principally to allow installation or repair of public utilities, drains and sewers to serve populated areas.

How deep are trench fill foundations?

Strip foundations should be 150mm to 500mm thick. Trench fill foundations should be greater than 500mm thick.

What is the cheapest foundation for a house?

Concrete Slab Cost

Concrete slabs are generally the cheapest type of foundation to install. Because they’re built slab-on-grade, they don’t require much excavating or ongoing maintenance, and they typically don’t promote moisture problems.

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