In the context of excavation, when calculating capacity, why is swell or expansion not accounted for in this scenario?

The rationale for indicating that swell or expansion is not accounted for in the scenario lies in the specific instruction or requirement provided in the context of the problem. When a scenario explicitly states to disregard certain factors, such as swell, it indicates a focused approach to calculations to avoid unnecessary complexity or confusion.

In excavation operations, swell refers to the increase in volume of excavated material when it is loosened from its original state. While swell is an important factor in many excavation calculations and estimations, there are situations where projects may simplify their estimates by excluding it. This is often done for the sake of clarity, precision in modeling, or when the swell factor is deemed irrelevant to the immediate calculations being performed, possibly because the focus is on another aspect of the excavation process.

Thus, not accounting for swell simplifies the calculation process and aligns with predetermined guidelines that the scenario outlines, allowing for more straightforward planning and analysis of excavation requirements without diluting the focus with additional variables.