What is the unconfined compressive strength range for soil classified as Type B?

The unconfined compressive strength range for soil classified as Type B is indeed 0.5 tsf to 1.5 tsf. This classification is important because it helps determine the appropriate engineering practices and safety measures when excavating or working with different types of soil. Type B soils generally include cohesive soils that are capable of supporting more weight than Type A soils, which have higher unconfined compressive strength.

Understanding the compressive strength is crucial for excavator operators, as it informs them about the stability of the ground they are working on and the potential for soil collapse. In practical terms, this means operators can assess their surroundings to ensure safe excavation practices—knowing that Type B soils offer moderate resistance and require appropriate precautions when excavating near structures or in conditions that may lead to soil movement or failure.