22 Mar Trenching
Trenching As far as safety is concerned, trenching and excavation operations are very similar. Both expose workers to the same types of hazards. Therefore, many of the same basic safety rules apply. The main difference is that a trench allows for only restricted working space. This restriction increases the potential for injury. As just one result, the need for safety awareness is increased when compared to excavation operations. Guide for Discussion Pre-operations: Locate all underground utilities. Determine, if possible, soil conditions. Determine if there is an overhead exposure. Based on the depth of the trench, determine the amount of shoring needed or angle...