Automated SPT: What is it, how does it work, and why does it reduce your drilling company's costs?

The pursuit of greater productivity and technical precision is the driving force behind the growth of any company in the geotechnical sector. In the current scenario, where deadlines are increasingly tight and the demand for reliable data is paramount, technology becomes the manager's main ally. Among the innovations that have transformed construction sites, the Automated SPT (Standard Penetration Test) stands out as a game-changer.

But what exactly makes the automated system so superior to the conventional method, and how does it directly impact the financial health of your operation? Let's understand the details.

What is an automated SPT?

The SPT is, without a doubt, the most widely used geotechnical test in Brazil for soil investigation. Traditionally, it relies on manual or semi-mechanized execution, where the hammer drop is controlled by the operator.

The Automated SPT is the evolution of this process. It is a mechanical or hydraulic system coupled to the probe, which ensures that the driving energy is transmitted in a standardized and constant manner, eliminating human variability. The system automatically manages the hammer drop height and the number of blows, ensuring that the test strictly follows technical standards (such as ABNT NBR 6484).

How does it work?

Unlike the manual method, which is subject to operator fatigue and inconsistency in the hammer's drop height, the automated system uses an automatic triggering mechanism.

1. Energy Standardization: The hammer is lifted and released by a mechanized system, ensuring that the energy applied to the sampler is always the same in every blow.

2. Precision Control: Integrated sensors monitor depth and penetration resistance in real time.

3. Reducing Human Error: Automation eliminates the need for manual counting and the risk of variations caused by deviations in drop height, factors that often invalidate conventional tests.

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Why Does Automated SPT Reduce Your Company's Costs?

Many managers still hesitate to invest in technology due to the initial cost. However, when analyzing the TCO (Total Cost of Ownership) , the Automated SPT proves to be a highly profitable investment:

1. Increased Productivity (Speed per Meter)

Automation allows the drilling cycle to be faster and more fluid. In a workday, the number of meters drilled with automated equipment considerably exceeds the capacity of a manual team, allowing your company to fulfill more contracts in the same period.

2. Reducing the Need for Re-doing Reports

How many times has a test needed to be redone due to unreliable data or execution errors? The Automated SPT generates clean, consistent, and auditable data. Fewer discarded tests mean fewer wasted team hours and fuel.

3. Greater Security and Lower Turnover

Manual labor in SPT (Standard Penetration Testing) is strenuous and involves ergonomic and accident risks. Automated equipment reduces the physical effort of the team, resulting in:

• Lower rate of sick leave.

• Talent retention (satisfied teams stay longer).

• Reduced costs associated with ongoing training for new employees.

4. Competitive Advantage in Bidding Processes

Large construction companies and government agencies value precision. Having an automated drilling rig positions your company at a higher technical level, allowing you to charge more for your services and guaranteeing entry into more complex projects that require rigorous quality control.

Conclusion: The Future is Automated

Automating SPT (Standard Penetration Testing) is not just a trend, it's a necessity for anyone who wants to scale with quality. By reducing reliance on human variability and maximizing daily throughput, you not only save money, but build a reputation for accuracy that is invaluable in the drilling market.

If your goal is to optimize your surveying company's processes, it might be time to evaluate transitioning to automated systems. The cost of not updating could, in the long run, be much greater than the investment in innovation.

Did you enjoy this content? Want to know how to apply these technologies to Diamond Drill projects ? Contact our technical team and discover how we can elevate the level of your geotechnical investigation.