What signifies that soil is in a state of distress near an excavation?

The development of fissures in the soil is a clear indication that the soil is in a state of distress, especially near an excavation site. Fissures or cracks occur when the soil cannot support its own weight or the weight of adjacent structures, which may be compromised due to the excavation. This distress can result from factors such as excessive water infiltration, erosion, or the disturbance of the soil's natural structure caused by excavation activities.

When fissures develop, they suggest that the stability of the surrounding soil is diminished, which could pose a risk to both the excavation site and any structures nearby. Recognizing these signs is critical for ensuring safety and making necessary adjustments to excavation practices.

Other signs, such as visible water accumulation, could indicate issues, but they may not directly correlate with soil distress caused by excavation. A firm consistency in soil typically suggests good stability and strength. No evident changes in soil structure might imply that the ground is stable and not in distress, which is contrary to the situation being assessed. Thus, the presence of fissures is the most definitive sign of soil distress in this context.