Hand Auger soil investigation is one of the most common and cost-effective techniques for shallow soil drilling. Engineers and researchers often use a hand auger, also known as a manual drill, to collect soil, sediment, and rock samples at limited depths. This method plays an important role in geotechnical engineering, agriculture, and environmental studies, especially during preliminary site investigations.
What is a Hand Auger and Its Role in Soil Investigation?
A Hand Auger soil investigation offers simplicity, flexibility, and low cost. Unlike heavy drilling equipment, the hand auger does not require machinery. Therefore, it is highly suitable for remote areas or difficult-to-access sites. Although it only reaches shallow depths, the method still delivers reliable data for early-stage soil exploration.
The main functions include collecting:
Soil samples
Sediment samples
Rock fragments
These samples allow engineers and researchers to evaluate geological history, soil stratification, and physical properties of the subsurface material.
👉 For more details on geotechnical testing, check ASTM International standards that regulate soil sampling procedures.
Methods of Hand Auger Drilling
Drilling with a hand auger belongs to the auger boring technique category. Engineers classify the obtained soil samples as disturbed. They usually analyze them visually, focusing on color, texture, moisture, and drilling resistance.
The process continues step by step, depending on the required depth. At every stage, engineers inspect each soil layer to support:
Foundation design
Soil stability analysis
Construction planning
Environmental assessments
Related article: What is Geotechnical Service? A Complete Beginner’s Guide
Advantages of Hand Auger Soil Investigation
Compared to other drilling methods, the hand auger soil investigation method provides several benefits:
Portable and lightweight – users can easily transport it to remote locations.
Economical – the method eliminates the need for heavy drilling rigs.
Efficient for shallow surveys – engineers receive quick results for early-stage projects.
Environmentally friendly – the process causes minimal site disturbance.
In conclusion, using a hand auger in soil investigation remains a practical and effective solution for shallow geotechnical surveys. The tool’s ease of operation, cost efficiency, and ability to provide essential subsurface data make it an excellent choice for preliminary geotechnical, agricultural, and environmental projects.
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