Exploring Soil Samples Obtained from a Conventional Split-Spoon Sampler

What size samples are obtained from a conventional split-spoon sampler?

Understanding Soil Sampling with Split-Spoon Sampler

A conventional split-spoon sampler is a common tool used in geotechnical investigations to obtain soil samples for analysis. The size of the sample collected from a split-spoon sampler is determined by the diameter and length of the sampler, as well as the depth to which it is driven into the soil.

The diameter of traditional split-spoon samplers typically ranges from 1 inch (25.4 mm) to 3 inches (76.2 mm), providing options for different sampling needs. These samplers come in varying lengths, usually between 18 inches (457.2 mm) and 30 inches (762 mm), allowing for flexibility in sampling depths.

When collecting a sample with a split-spoon sampler, the sampler is driven into the soil using a hammer to a specified depth. Once driven to the desired depth, the sampler is withdrawn from the soil. The collected soil inside the sampler is then divided into equal halves, which gives the sampler its name "split-spoon".

Typically, the length of the soil sample obtained from a split-spoon sampler ranges from about 6 inches (152.4 mm) to 12 inches (304.8 mm). The actual length depends on the specific sampler used and the depth of penetration required for the investigation.

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