What is the Purpose of Geotechnical Site Investigation?

May, 31 2022
What is the Purpose of Geotechnical Site Investigation?

Before any structure is built, engineers need first to assess it. This is to see if the ground is suitable and sturdy enough to safely begin construction of a building. The process is done through geotechnical investigation.

It gives information on the physical properties of soil earthworks for proposed structures and for the repair of distress to earthworks that are caused by subsurface conditions. The information from this process can help businesses save massive costs.

But this information can be used for a lot more. Keep reading as we list down the multiple purposes of geotechnical investigations and why it is essential in geotechnical engineering.

Geotechnical Site Investigation

Geotechnical site investigation is vital in the construction process because it aims to understand and provide information on the site’s subsurface conditions. Ultimately, this investigation seeks to understand the soil conditions below the surface.

These include the groundwater conditions, engineering problems, types of soils or rock, and measuring the thermal resistivity of soils. Such conditions determine many factors, including how expensive the construction project will be, what type of foundation is required, how the structure will be built, etc.

Regardless of the type of construction being done, whether a house, pipeline, or a massive shopping mall, a geotechnical investigation must be carried out.

Process Involved in Geotechnical Site Investigation

Since each project’s requirements and land are unique, each type of geotechnical investigation is unique. However, the essential steps in carrying them out remain the same. They are:

1. Knowledge of the Site

This is where geotechnical engineering takes place to understand the region’s geology. It can be done through geologic mapping, photogrammetry, or geophysical methods. All in all, it is done to assess the physical conditions of the soil. They must figure out the limits of the soil and what needs to be done to overcome any issues.

2. Preliminary Assessment of the Site

Once this is done, the engineers will work with the client to see what type of construction they require. This is typically where they use borings or drillings to take out soil samples. Depending on the client’s needs, these samples might also get tested in labs. Other than this, the engineers will also visually assess the soil for rock and water.

3. Detailed Assessment for Construction

In some cases, a more detailed assessment will be required depending on the type of construction required. These are normally done through geophysical investigations and scientific studies, which are quite beneficial for uncovering underground anomalies or utilities.

4. Recommendations and Solutions

Once engineers have conducted their investigation, they will need to develop proposed solutions. They will then provide businesses with how to approach the site’s construction.
Understanding subsurface conditions before the construction of the site is essential to ensure that the structure is built safely and can be adequately supported.

G3SoilWorks provides such consultancy services to help you determine the best solution for your construction site. So, contact us to maximize the productivity and profitability of your projects in Southern California by supporting them with our geotechnical and geological experience.

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G3SoilWorks – a full service geotechnical / engineering geologic consulting firm, is pleased to reach our third year. It has come with many interesting clients, assignments and obstacles.

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