What is geotechnical surveying?

Geotechnical surveying refers to the methods used to determine the soil consistency, structure, and groundwater levels of a site.

This often takes place prior to construction so that a geotechnical engineer can develop a plan for the site, working around any risks or hazards that may be present below the surface.

Any proposed change to the structure or shape of a site needs to be geotechnically surveyed. A geotechnical survey can be as simple as a visual assessment or as involved as testing the electromagnetic activity of a site.

One of the key tools used in geotechnical surveying is geotechnical drilling. Geotechnical drilling is the process of drilling boreholes at representative levels and locations below the surface; these holes are then used to collect rock and soil samples. The samples are sent to a lab for analysis and can be used to create a soil profile for the site.

Geotechnical drilling is most important for large structures such as multi-storey buildings due to the pressure they put the soil under. However, geotechnical drilling should be used as often as possible due to the multiple benefits of increased site investigation such as reduced cost, increased safety, reduced carbon footprint, and an accurate budget forecast as discussed further in our previous article.

If construction moves forward without a proper understanding of the ground conditions a range of consequences can occur. You are likely to experience structural damage such as cracked walls and foundations which can in turn drive up the predicted cost of a project and pose a large safety risk to all involved.

No matter the size of your next project, choose to move forward with peace of mind by geotechnical drilling first.

Here at ATROX, our smaller, customisable drilling rigs make this attainable for everyone. Get in contact with the team today to see what we can do for you.

info@atrox.co.nz

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