Which environmental factor can affect excavation safety?

Weather conditions such as rain or freezing temperatures significantly impact excavation safety due to their direct effects on the work environment and the stability of excavation sites. When it rains, the ground becomes saturated, which can lead to increased soil erosion and potential mudslides, creating hazardous conditions for workers. Additionally, wet soil can undermine the structural integrity of excavated areas, increasing the likelihood of collapses.

Freezing temperatures can also pose serious risks. When the ground freezes, it may become hard and difficult to excavate, but as the temperatures rise, the thawing ground can lead to instability and collapse. Frozen ground can hide unstable conditions beneath the surface, leading to unexpected hazards.

Awareness of these weather-related factors is essential for developing safety protocols and ensuring that excavations are planned and executed in a manner that protects workers from environmental risks.