What method raises soil samples using a standard auger bit and is effective in sand or clay?

The method involving the use of a standard auger bit to raise soil samples is known as auger borings. This technique is particularly effective for both sandy and clayey soils as the auger can efficiently penetrate these materials, allowing for the collection of soil samples without significantly disturbing the surrounding soil structure. Auger borings work by rotating the auger to cut into the soil and then transporting the soil up through the helix to the surface where samples can be analyzed.

The method is versatile and can be utilized for a variety of soil types, making it a common choice in geotechnical investigations. Given that augers can be adjusted to different diameters and lengths, they are suitable for numerous subsurface exploration projects, providing essential data for foundation design, environmental assessments, and construction planning.