Earthworks Flashcards
Are engineering works carried out in and with granular soils, i.e. the movement of earth by means of excavation and filling.
Earthworks
The process of removing soil, rock, or other materials to create space for a new building or structure.
Excavation
The process of filling in the excavated area around a foundation or structure to provide support and stability.
Backfilling
The process of reshaping the land to create level base or a slope for a construction project.
Grading
A layer of gravel and sand that provides a stable base for other construction materials.
Gravel Bedding
Applying termiticides to the soil around and beneath a buildings foundation to create a chemical barrier that prevents termites from entering.
Soil Poisoning
Swell and shrinkage factor for sand and gravel.
10 to 18%
85 to 100%
Swell and shrinkage factor for loam soil.
15 to 25%
90 to 100%
Swell and shrinkage factor for dense clay
20 to 35%
90 to 100%
Swell and shrinkage factor for solid rock
40 to 70%
130%
Attachment point between the foundation and the soil
Footing
Supports walls to transmit and distribute load into the soil
Wall footing
Small waste management system in rural homes
Septic tanks
The process of increasing soil density by reducing air voids, improving its load bearing capacity and preventing settlement.
Compaction
This type of gravel used in bedding is sharp-edged, locks well, ideal for structural support.
Crushed Stone
This type of gravel used in bedding are small, smooth stones, often used for drainage applications.
Pea Gravel
This type of gravel used in bedding are rounded, good for filtration but less compact.
River Gravel
This type of gravel that is used in bedding is common in road work and structural bedding.
Granular A and B (Compacted Gravel)
