Soil sampling is a fundamental step in geotechnical investigations across Bangladesh, where diverse soil conditions range from soft alluvial clays to dense sands. Proper sampling techniques, such as disturbed and undisturbed sampling, are used to collect representative soil specimens for laboratory testing. In Bangladesh, soil samples are critical for assessing properties like strength, compressibility, and permeability, especially for infrastructure projects like roads, bridges, and flood embankments. Common methods include hand augers, Shelby tubes, and rotary drilling, adapted to the challenging field conditions of the region.
