Good preparation makes everything easier
Excavation can be necessary for all sorts of reasons; it is the processing, and exposure of foundations or a site.
It is usually required to excavate to specified depths which will depend on the existing ground.
If clay is reached; this usually indicates good ground for building upon. Whether it be footings for a house or a surface area for a car park, excavation depths required may vary.
There are several different methods and processes incorporated in excavation. One of these is to manually excavate with a shovel.
This method is generally used for those inaccessible positions that can’t be reached by an excavator, or where underground services might be apparent and extra care must be taken.
Another method to excavate is the use of an excavator which come in all sizes from 1 tonne up to 38 tonnes.
Excavation Types
Excavation can be a broad term relating to multiple different types of digging for different reasons.
Topsoil excavation
This involves the removal of the exposed layer of the earth’s surface or soil, including any plants or anything else which could make the soil unstable or unsuitable for bearing structural loads. Depths will vary from job to job, usually at a depth of around 15-30 cm.
Earth Excavation
The removal of the layer of soil directly beneath the topsoil. The earth or spoil that is removed is often saved and used to infill different sites or projects.
